diff --git a/XLAB/EkzDirectoryDialogService.cs b/XLAB/EkzDirectoryDialogService.cs
new file mode 100644
index 0000000..dd6c8f3
--- /dev/null
+++ b/XLAB/EkzDirectoryDialogService.cs
@@ -0,0 +1,58 @@
+using System.Collections.Generic;
+using System.Windows;
+
+namespace XLAB
+{
+    internal interface IEkzDirectoryDialogService
+    {
+        EkzDirectoryItem ShowEkzEditDialog(EkzDirectoryItem seed, bool isNew, IReadOnlyList<EkzDirectoryItem> existingItems, EkzDirectoryService service);
+
+        bool Confirm(string message);
+
+        void ShowError(string message);
+
+        void ShowInfo(string message);
+
+        void ShowWarning(string message);
+    }
+
+    internal sealed class EkzDirectoryDialogService : IEkzDirectoryDialogService
+    {
+        private readonly Window _owner;
+
+        public EkzDirectoryDialogService(Window owner)
+        {
+            _owner = owner;
+        }
+
+        public bool Confirm(string message)
+        {
+            return MessageBox.Show(_owner, message, "ПСВ", MessageBoxButton.YesNo, MessageBoxImage.Question) == MessageBoxResult.Yes;
+        }
+
+        public EkzDirectoryItem ShowEkzEditDialog(EkzDirectoryItem seed, bool isNew, IReadOnlyList<EkzDirectoryItem> existingItems, EkzDirectoryService service)
+        {
+            var viewModel = new EkzEditWindowViewModel(seed, isNew, existingItems, service);
+            var window = new EkzEditWindow(viewModel);
+            window.Owner = _owner;
+
+            var result = window.ShowDialog();
+            return result.HasValue && result.Value ? viewModel.ToResult() : null;
+        }
+
+        public void ShowError(string message)
+        {
+            MessageBox.Show(_owner, message, "ПСВ", MessageBoxButton.OK, MessageBoxImage.Error);
+        }
+
+        public void ShowInfo(string message)
+        {
+            MessageBox.Show(_owner, message, "ПСВ", MessageBoxButton.OK, MessageBoxImage.Information);
+        }
+
+        public void ShowWarning(string message)
+        {
+            MessageBox.Show(_owner, message, "ПСВ", MessageBoxButton.OK, MessageBoxImage.Warning);
+        }
+    }
+}
diff --git a/XLAB/EkzDirectoryModels.cs b/XLAB/EkzDirectoryModels.cs
new file mode 100644
index 0000000..0925f48
--- /dev/null
+++ b/XLAB/EkzDirectoryModels.cs
@@ -0,0 +1,132 @@
+using System;
+using System.Collections.Generic;
+
+namespace XLAB
+{
+    public sealed class EkzDirectoryItem
+    {
+        public int Id { get; set; }
+
+        public int TypeSizeId { get; set; }
+
+        public string MeasurementAreaName { get; set; }
+
+        public string InstrumentName { get; set; }
+
+        public string TypeName { get; set; }
+
+        public string RangeText { get; set; }
+
+        public string AccuracyText { get; set; }
+
+        public string RegistryNumber { get; set; }
+
+        public int OwnerOrganizationId { get; set; }
+
+        public string OwnerOrganizationName { get; set; }
+
+        public string SerialNumber { get; set; }
+
+        public string InventoryNumber { get; set; }
+
+        public string Notes { get; set; }
+    }
+
+    public sealed class EkzMkDirectoryItem
+    {
+        public int CardId { get; set; }
+
+        public int InstrumentId { get; set; }
+
+        public string VerificationTypeName { get; set; }
+
+        public string VerificationOrganizationName { get; set; }
+
+        public string DocumentNumber { get; set; }
+
+        public string VerificationDocumentNumber { get; set; }
+
+        public DateTime? VerificationDocumentDate { get; set; }
+
+        public int PeriodMonths { get; set; }
+
+        public DateTime? AcceptedOn { get; set; }
+
+        public DateTime? PlannedOn { get; set; }
+
+        public DateTime? PerformedOn { get; set; }
+
+        public DateTime? IssuedOn { get; set; }
+
+        public bool? IsPassed { get; set; }
+
+        public string Notes { get; set; }
+
+        public string ResultText
+        {
+            get
+            {
+                if (!IsPassed.HasValue)
+                {
+                    return string.Empty;
+                }
+
+                return IsPassed.Value ? "Годен" : "Не годен";
+            }
+        }
+
+        public string VerificationDocumentDisplay
+        {
+            get
+            {
+                if (string.IsNullOrWhiteSpace(VerificationDocumentNumber))
+                {
+                    return VerificationDocumentDate.HasValue ? VerificationDocumentDate.Value.ToString("d") : string.Empty;
+                }
+
+                if (!VerificationDocumentDate.HasValue)
+                {
+                    return VerificationDocumentNumber;
+                }
+
+                return string.Format("{0} от {1:d}", VerificationDocumentNumber, VerificationDocumentDate.Value);
+            }
+        }
+    }
+
+    internal sealed class EkzDeleteImpactItem
+    {
+        public string TableName { get; set; }
+
+        public int RowCount { get; set; }
+    }
+
+    internal sealed class EkzDeletePreview
+    {
+        public bool CanDelete { get; set; }
+
+        public IReadOnlyList<EkzDeleteImpactItem> ImpactItems { get; set; }
+
+        public string ConfirmationMessage { get; set; }
+
+        public string WarningMessage { get; set; }
+    }
+
+    internal sealed class EkzDeleteResult
+    {
+        public bool IsDeleted { get; set; }
+
+        public IReadOnlyList<EkzDeleteImpactItem> ImpactItems { get; set; }
+
+        public string WarningMessage { get; set; }
+    }
+
+    internal static class EkzDirectoryRules
+    {
+        public const int SerialNumberMaxLength = 30;
+
+        public const int InventoryNumberMaxLength = 30;
+
+        public const int NotesMaxLength = 8000;
+    }
+}
diff --git a/XLAB/EkzDirectoryService.cs b/XLAB/EkzDirectoryService.cs
new file mode 100644
index 0000000..e6ec0ff
--- /dev/null
+++ b/XLAB/EkzDirectoryService.cs
@@ -0,0 +1,832 @@
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.Linq;
+using System.Data.SqlClient;
+
+namespace XLAB
+{
+    internal sealed class EkzDirectoryService
+    {
+        private static readonly string[] CascadingEkzChildTables = { "EKZMK", "EKZMCP" };
+
+        private static readonly string[] CascadingEkzMkChildTables = { "EKZMKFCTVL", "EKZMKDH", "EKZMKEKZK", "EKZMKND", "KSPELEKZMK" };
+
+        public int AddEkzItem(EkzDirectoryItem item)
+        {
+            var normalizedItem = NormalizeEkzItem(item);
+
+            const string sql = @"
+INSERT INTO dbo.EKZ
+(
+    IDTPRZ,
+    IDFRPDV,
+    KLSIPR,
+    NNZV,
+    NNIN,
+    DSEKZ,
+    GUIDEKZ,
+    IsDeleted
+)
+VALUES
+(
+    @TypeSizeId,
+    @OwnerOrganizationId,
+    1,
+    @SerialNumber,
+    @InventoryNumber,
+    @Notes,
+    @Guid,
+    0
+);
+
+SELECT CAST(SCOPE_IDENTITY() AS int);";
+
+            using (var connection = ReferenceDirectorySqlHelpers.CreateConnection())
+            using (var command = new SqlCommand(sql, connection))
+            {
+                connection.Open();
+                EnsureEkzIsUnique(connection, normalizedItem.TypeSizeId, normalizedItem.OwnerOrganizationId, normalizedItem.SerialNumber, null);
+
+                command.CommandTimeout = ReferenceDirectorySqlHelpers.GetCommandTimeoutSeconds();
+                command.Parameters.Add("@TypeSizeId", SqlDbType.Int).Value = normalizedItem.TypeSizeId;
+                command.Parameters.Add("@OwnerOrganizationId", SqlDbType.Int).Value = normalizedItem.OwnerOrganizationId;
+                command.Parameters.Add("@SerialNumber", SqlDbType.VarChar, EkzDirectoryRules.SerialNumberMaxLength).Value = normalizedItem.SerialNumber;
+                ReferenceDirectorySqlHelpers.AddNullableStringParameter(command, "@InventoryNumber", SqlDbType.VarChar, EkzDirectoryRules.InventoryNumberMaxLength, normalizedItem.InventoryNumber);
+                ReferenceDirectorySqlHelpers.AddNullableStringParameter(command, "@Notes", SqlDbType.VarChar, EkzDirectoryRules.NotesMaxLength, normalizedItem.Notes);
+                command.Parameters.Add("@Guid", SqlDbType.UniqueIdentifier).Value = Guid.NewGuid();
+
+                return Convert.ToInt32(command.ExecuteScalar());
+            }
+        }
+
+        public EkzDeletePreview GetEkzDeletePreview(int id)
+        {
+            if (id <= 0)
+            {
+                return new EkzDeletePreview
+                {
+                    CanDelete = false,
+                    ImpactItems = Array.Empty<EkzDeleteImpactItem>(),
+                    WarningMessage = "Не выбрана запись EKZ для удаления."
+                };
+            }
+
+            using (var connection = ReferenceDirectorySqlHelpers.CreateConnection())
+            {
+                connection.Open();
+                return BuildEkzDeletePreview(connection, null, id);
+            }
+        }
+
+        public EkzDeleteResult DeleteEkzItem(int id)
+        {
+            if (id <= 0)
+            {
+                throw new InvalidOperationException("Не выбрана запись EKZ для удаления.");
+            }
+
+            try
+            {
+                using (var connection = ReferenceDirectorySqlHelpers.CreateConnection())
+                {
+                    connection.Open();
+
+                    using (var transaction = connection.BeginTransaction())
+                    {
+                        var preview = BuildEkzDeletePreview(connection, transaction, id);
+                        if (!preview.CanDelete)
+                        {
+                            transaction.Rollback();
+                            return new EkzDeleteResult
+                            {
+                                IsDeleted = false,
+                                ImpactItems = preview.ImpactItems ?? Array.Empty<EkzDeleteImpactItem>(),
+                                WarningMessage = preview.WarningMessage
+                            };
+                        }
+
+                        var impactItems = new List<EkzDeleteImpactItem>();
+                        AddImpactItem(impactItems, "EKZMKFCTVL", DeleteEkzMkFctvl(connection, transaction, id));
+                        AddImpactItem(impactItems, "EKZMKDH", DeleteEkzMkDh(connection, transaction, id));
+                        AddImpactItem(impactItems, "EKZMKEKZK", DeleteEkzMkEkzk(connection, transaction, id));
+                        AddImpactItem(impactItems, "EKZMKND", DeleteEkzMkNd(connection, transaction, id));
+                        AddImpactItem(impactItems, "KSPELEKZMK", DeleteKspelEkzMk(connection, transaction, id));
+                        AddImpactItem(impactItems, "DMS", DeleteEkzDms(connection, transaction, id));
+                        AddImpactItem(impactItems, "EKZMK", DeleteEkzMk(connection, transaction, id));
+                        AddImpactItem(impactItems, "EKZMCP", DeleteEkzMcp(connection, transaction, id));
+
+                        var deletedEkzCount = DeleteEkz(connection, transaction, id);
+                        if (deletedEkzCount == 0)
+                        {
+                            transaction.Rollback();
+                            return new EkzDeleteResult
+                            {
+                                IsDeleted = false,
+                                ImpactItems = Array.Empty<EkzDeleteImpactItem>(),
+                                WarningMessage = "Запись EKZ для удаления не найдена."
+                            };
+                        }
+
+                        AddImpactItem(impactItems, "EKZ", deletedEkzCount);
+                        transaction.Commit();
+
+                        return new EkzDeleteResult
+                        {
+                            IsDeleted = true,
+                            ImpactItems = OrderImpactItems(impactItems)
+                        };
+                    }
+                }
+            }
+            catch (SqlException ex) when (ex.Number == 547)
+            {
+                return new EkzDeleteResult
+                {
+                    IsDeleted = false,
+                    ImpactItems = Array.Empty<EkzDeleteImpactItem>(),
+                    WarningMessage = CreateEkzDeleteFailedMessage(ex)
+                };
+            }
+        }
+
+        public IReadOnlyList<EkzDirectoryItem> LoadEkzItems()
+        {
+            const string sql = @"
+SELECT
+    z.IDEKZ AS Id,
+    z.IDTPRZ AS TypeSizeId,
+    areas.NMOI AS MeasurementAreaName,
+    names.NMTP AS InstrumentName,
+    tips.TP AS TypeName,
+    tprz.DPZN AS RangeText,
+    tprz.HRTC AS AccuracyText,
+    tprz.NNGSRS AS RegistryNumber,
+    z.IDFRPDV AS OwnerOrganizationId,
+    ownerOrg.NMFRPD AS OwnerOrganizationName,
+    z.NNZV AS SerialNumber,
+    z.NNIN AS InventoryNumber,
+    CAST(z.DSEKZ AS nvarchar(max)) AS Notes
+FROM dbo.EKZ z
+JOIN dbo.TPRZ tprz ON tprz.IDTPRZ = z.IDTPRZ
+JOIN dbo.TIPS tips ON tips.IDTIPS = tprz.IDTIPS
+JOIN dbo.SPNMTP names ON names.IDSPNMTP = tips.IDSPNMTP
+JOIN dbo.SPOI areas ON areas.IDSPOI = tips.IDSPOI
+JOIN dbo.FRPD ownerOrg ON ownerOrg.IDFRPD = z.IDFRPDV
+WHERE ISNULL(z.IsDeleted, 0) = 0
+ORDER BY ownerOrg.NMFRPD, areas.NMOI, names.NMTP, tips.TP, tprz.DPZN, z.NNZV, z.IDEKZ;";
+
+            var items = new List<EkzDirectoryItem>();
+
+            using (var connection = ReferenceDirectorySqlHelpers.CreateConnection())
+            using (var command = new SqlCommand(sql, connection))
+            {
+                connection.Open();
+                command.CommandTimeout = ReferenceDirectorySqlHelpers.GetCommandTimeoutSeconds();
+
+                using (var reader = command.ExecuteReader())
+                {
+                    while (reader.Read())
+                    {
+                        items.Add(new EkzDirectoryItem
+                        {
+                            Id = ReferenceDirectorySqlHelpers.GetInt32(reader, "Id"),
+                            TypeSizeId = ReferenceDirectorySqlHelpers.GetInt32(reader, "TypeSizeId"),
+                            MeasurementAreaName = ReferenceDirectorySqlHelpers.GetString(reader, "MeasurementAreaName"),
+                            InstrumentName = ReferenceDirectorySqlHelpers.GetString(reader, "InstrumentName"),
+                            TypeName = ReferenceDirectorySqlHelpers.GetString(reader, "TypeName"),
+                            RangeText = ReferenceDirectorySqlHelpers.GetString(reader, "RangeText"),
+                            AccuracyText = ReferenceDirectorySqlHelpers.GetString(reader, "AccuracyText"),
+                            RegistryNumber = ReferenceDirectorySqlHelpers.GetString(reader, "RegistryNumber"),
+                            OwnerOrganizationId = ReferenceDirectorySqlHelpers.GetInt32(reader, "OwnerOrganizationId"),
+                            OwnerOrganizationName = ReferenceDirectorySqlHelpers.GetString(reader, "OwnerOrganizationName"),
+                            SerialNumber = ReferenceDirectorySqlHelpers.GetString(reader, "SerialNumber"),
+                            InventoryNumber = ReferenceDirectorySqlHelpers.GetString(reader, "InventoryNumber"),
+                            Notes = ReferenceDirectorySqlHelpers.GetString(reader, "Notes")
+                        });
+                    }
+                }
+            }
+
+            return items;
+        }
+
+        public IReadOnlyList<EkzMkDirectoryItem> LoadEkzMkItems(int instrumentId)
+        {
+            const string sql = @"
+SELECT
+    m.IDEKZMK AS CardId,
+    m.IDEKZ AS InstrumentId,
+    verificationType.NMVDMK AS VerificationTypeName,
+    organization.NMFRPD AS VerificationOrganizationName,
+    m.NNZVPV AS DocumentNumber,
+    verificationDocument.NNDMS AS VerificationDocumentNumber,
+    verificationDocument.DTDMS AS VerificationDocumentDate,
+    m.PRMK AS PeriodMonths,
+    m.DTPRM AS AcceptedOn,
+    m.DTMKPL AS PlannedOn,
+    m.DTMKFK AS PerformedOn,
+    m.DTVDM AS IssuedOn,
+    m.GDN AS IsPassed,
+    CAST(m.DSEKZMK AS nvarchar(max)) AS Notes
+FROM dbo.EKZMK m
+LEFT JOIN dbo.SPVDMK verificationType ON verificationType.IDSPVDMK = m.IDSPVDMK
+LEFT JOIN dbo.FRPD organization ON organization.IDFRPD = m.IDFRPD
+OUTER APPLY
+(
+    SELECT TOP (1)
+        d.NND AS NNDMS,
+        d.DTD AS DTDMS
+    FROM dbo.DMS d
+    JOIN dbo.VDODVDD vdd ON vdd.IDVDODVDD = d.IDVDODVDD
+    JOIN dbo.FRDMS frdms ON frdms.IDFRDMS = d.IDFRDMS
+    JOIN dbo.SPVDD spvdd ON spvdd.IDSPVDD = frdms.IDSPVDD
+    WHERE d.IDOD = m.IDEKZMK
+      AND vdd.IDSPVDOD = 2
+      AND spvdd.IDSPVDD IN (2, 6, 8)
+    ORDER BY d.DTD DESC
+) verificationDocument
+WHERE m.IDEKZ = @InstrumentId
+ORDER BY ISNULL(m.DTPRM, CONVERT(datetime, '19000101', 112)) DESC, m.IDEKZMK DESC;";
+
+            var items = new List<EkzMkDirectoryItem>();
+
+            using (var connection = ReferenceDirectorySqlHelpers.CreateConnection())
+            using (var command = new SqlCommand(sql, connection))
+            {
+                connection.Open();
+                command.CommandTimeout = ReferenceDirectorySqlHelpers.GetCommandTimeoutSeconds();
+                command.Parameters.Add("@InstrumentId", SqlDbType.Int).Value = instrumentId;
+
+                using (var reader = command.ExecuteReader())
+                {
+                    while (reader.Read())
+                    {
+                        items.Add(new EkzMkDirectoryItem
+                        {
+                            CardId = ReferenceDirectorySqlHelpers.GetInt32(reader, "CardId"),
+                            InstrumentId = ReferenceDirectorySqlHelpers.GetInt32(reader, "InstrumentId"),
+                            VerificationTypeName = ReferenceDirectorySqlHelpers.GetString(reader, "VerificationTypeName"),
+                            VerificationOrganizationName = ReferenceDirectorySqlHelpers.GetString(reader, "VerificationOrganizationName"),
+                            DocumentNumber = ReferenceDirectorySqlHelpers.GetString(reader, "DocumentNumber"),
+                            VerificationDocumentNumber = ReferenceDirectorySqlHelpers.GetString(reader, "VerificationDocumentNumber"),
+                            VerificationDocumentDate = ReferenceDirectorySqlHelpers.GetNullableDateTime(reader, "VerificationDocumentDate"),
+                            PeriodMonths = ReferenceDirectorySqlHelpers.GetInt32(reader, "PeriodMonths"),
+                            AcceptedOn = ReferenceDirectorySqlHelpers.GetNullableDateTime(reader, "AcceptedOn"),
+                            PlannedOn = ReferenceDirectorySqlHelpers.GetNullableDateTime(reader, "PlannedOn"),
+                            PerformedOn = ReferenceDirectorySqlHelpers.GetNullableDateTime(reader, "PerformedOn"),
+                            IssuedOn = ReferenceDirectorySqlHelpers.GetNullableDateTime(reader, "IssuedOn"),
+                            IsPassed = ReferenceDirectorySqlHelpers.GetNullableBoolean(reader, "IsPassed"),
+                            Notes = ReferenceDirectorySqlHelpers.GetString(reader, "Notes")
+                        });
+                    }
+                }
+            }
+
+            return items;
+        }
+
+        public IReadOnlyList<DirectoryLookupItem> LoadFrpdReferences()
+        {
+            return ReferenceDirectorySqlHelpers.LoadLookupItems(@"
+SELECT
+    fr.IDFRPD AS Id,
+    fr.NMFRPD AS Name
+FROM dbo.FRPD fr
+WHERE NULLIF(LTRIM(RTRIM(fr.NMFRPD)), '') IS NOT NULL
+ORDER BY fr.NMFRPD, fr.IDFRPD;");
+        }
+
+        public IReadOnlyList<DirectoryLookupItem> LoadTypeSizeReferences()
+        {
+            return ReferenceDirectorySqlHelpers.LoadLookupItems(@"
+SELECT
+    tprz.IDTPRZ AS Id,
+    LTRIM(RTRIM(
+        COALESCE(NULLIF(areas.NMOI, N'') + N' / ', N'')
+        + COALESCE(NULLIF(names.NMTP, N'') + N' / ', N'')
+        + COALESCE(NULLIF(tips.TP, N''), N'')
+        + CASE WHEN NULLIF(LTRIM(RTRIM(tprz.DPZN)), N'') IS NULL THEN N'' ELSE N' / ' + tprz.DPZN END
+        + CASE
+            WHEN NULLIF(LTRIM(RTRIM(CONVERT(nvarchar(50), tprz.NNGSRS))), N'') IS NULL THEN N''
+            ELSE N' / № ГР ' + CONVERT(nvarchar(50), tprz.NNGSRS)
+          END
+    )) AS Name
+FROM dbo.TPRZ tprz
+JOIN dbo.TIPS tips ON tips.IDTIPS = tprz.IDTIPS
+JOIN dbo.SPNMTP names ON names.IDSPNMTP = tips.IDSPNMTP
+JOIN dbo.SPOI areas ON areas.IDSPOI = tips.IDSPOI
+ORDER BY areas.NMOI, names.NMTP, tips.TP, tprz.DPZN, tprz.IDTPRZ;");
+        }
+
+        public void UpdateEkzItem(EkzDirectoryItem item)
+        {
+            var normalizedItem = NormalizeEkzItem(item);
+            if (normalizedItem.Id <= 0)
+            {
+                throw new InvalidOperationException("Не выбрана запись EKZ для изменения.");
+            }
+
+            const string sql = @"
+UPDATE dbo.EKZ
+SET IDTPRZ = @TypeSizeId,
+    IDFRPDV = @OwnerOrganizationId,
+    NNZV = @SerialNumber,
+    NNIN = @InventoryNumber,
+    DSEKZ = @Notes
+WHERE IDEKZ = @Id;
+
+SELECT @@ROWCOUNT;";
+
+            using (var connection = ReferenceDirectorySqlHelpers.CreateConnection())
+            using (var command = new SqlCommand(sql, connection))
+            {
+                connection.Open();
+                EnsureEkzIsUnique(connection, normalizedItem.TypeSizeId, normalizedItem.OwnerOrganizationId, normalizedItem.SerialNumber, normalizedItem.Id);
+
+                command.CommandTimeout = ReferenceDirectorySqlHelpers.GetCommandTimeoutSeconds();
+                command.Parameters.Add("@Id", SqlDbType.Int).Value = normalizedItem.Id;
+                command.Parameters.Add("@TypeSizeId", SqlDbType.Int).Value = normalizedItem.TypeSizeId;
+                command.Parameters.Add("@OwnerOrganizationId", SqlDbType.Int).Value = normalizedItem.OwnerOrganizationId;
+                command.Parameters.Add("@SerialNumber", SqlDbType.VarChar, EkzDirectoryRules.SerialNumberMaxLength).Value = normalizedItem.SerialNumber;
+                ReferenceDirectorySqlHelpers.AddNullableStringParameter(command, "@InventoryNumber", SqlDbType.VarChar, EkzDirectoryRules.InventoryNumberMaxLength, normalizedItem.InventoryNumber);
+                ReferenceDirectorySqlHelpers.AddNullableStringParameter(command, "@Notes", SqlDbType.VarChar, EkzDirectoryRules.NotesMaxLength, normalizedItem.Notes);
+
+                if (Convert.ToInt32(command.ExecuteScalar()) == 0)
+                {
+                    throw new InvalidOperationException("Запись EKZ для изменения не найдена.");
+                }
+            }
+        }
+
+        private static EkzDeletePreview BuildEkzDeletePreview(SqlConnection connection, SqlTransaction transaction, int id)
+        {
+            if (!EkzExists(connection, transaction, id))
+            {
+                return new EkzDeletePreview
+                {
+                    CanDelete = false,
+                    ImpactItems = Array.Empty<EkzDeleteImpactItem>(),
+                    WarningMessage = "Запись EKZ для удаления не найдена."
+                };
+            }
+
+            var cardIds = LoadEkzMkCardIds(connection, transaction, id);
+            var blockers = new List<DeleteBlockerInfo>();
+            blockers.AddRange(ReferenceDirectorySqlHelpers.LoadDeleteBlockersFromForeignKeys(connection, transaction, "EKZ", id, CascadingEkzChildTables));
+            blockers.AddRange(LoadUnhandledDeleteBlockers(connection, transaction, "EKZMK", cardIds, CascadingEkzMkChildTables));
+
+            var impactItems = BuildImpactItems(connection, transaction, id, cardIds);
+            var mergedBlockers = MergeBlockers(blockers);
+            if (mergedBlockers.Count > 0)
+            {
+                return new EkzDeletePreview
+                {
+                    CanDelete = false,
+                    ImpactItems = impactItems,
+                    WarningMessage = CreateEkzCascadeBlockedMessage(mergedBlockers)
+                };
+            }
+
+            return new EkzDeletePreview
+            {
+                CanDelete = true,
+                ImpactItems = impactItems,
+                ConfirmationMessage = CreateEkzDeleteConfirmationMessage(impactItems)
+            };
+        }
+
+        private static IReadOnlyList<EkzDeleteImpactItem> BuildImpactItems(SqlConnection connection, SqlTransaction transaction, int instrumentId, IReadOnlyCollection<int> cardIds)
+        {
+            var impactItems = new List<EkzDeleteImpactItem>();
+            AddImpactItem(impactItems, "EKZ", 1);
+            AddImpactItem(impactItems, "EKZMK", cardIds == null ? 0 : cardIds.Count);
+            AddImpactItem(impactItems, "DMS", CountEkzDms(connection, transaction, instrumentId));
+            AddImpactItem(impactItems, "EKZMKFCTVL", CountEkzMkFctvl(connection, transaction, instrumentId));
+            AddImpactItem(impactItems, "EKZMKDH", CountEkzMkDh(connection, transaction, instrumentId));
+            AddImpactItem(impactItems, "EKZMKEKZK", CountEkzMkEkzk(connection, transaction, instrumentId));
+            AddImpactItem(impactItems, "EKZMKND", CountEkzMkNd(connection, transaction, instrumentId));
+            AddImpactItem(impactItems, "KSPELEKZMK", CountKspelEkzMk(connection, transaction, instrumentId));
+            AddImpactItem(impactItems, "EKZMCP", CountEkzMcp(connection, transaction, instrumentId));
+            return OrderImpactItems(impactItems);
+        }
+
+        private static IReadOnlyList<EkzDeleteImpactItem> OrderImpactItems(IEnumerable<EkzDeleteImpactItem> impactItems)
+        {
+            var order = new Dictionary<string, int>(StringComparer.OrdinalIgnoreCase)
+            {
+                { "EKZ", 1 },
+                { "EKZMK", 2 },
+                { "DMS", 3 },
+                { "EKZMKFCTVL", 4 },
+                { "EKZMKDH", 5 },
+                { "EKZMKEKZK", 6 },
+                { "EKZMKND", 7 },
+                { "KSPELEKZMK", 8 },
+                { "EKZMCP", 9 }
+            };
+
+            return (impactItems ?? Enumerable.Empty<EkzDeleteImpactItem>())
+                .Where(delegate(EkzDeleteImpactItem item) { return item != null && item.RowCount > 0; })
+                .OrderBy(delegate(EkzDeleteImpactItem item)
+                {
+                    int value;
+                    return order.TryGetValue(item.TableName ?? string.Empty, out value) ? value : int.MaxValue;
+                })
+                .ThenBy(delegate(EkzDeleteImpactItem item) { return item.TableName; }, StringComparer.OrdinalIgnoreCase)
+                .ToList();
+        }
+
+        private static void AddImpactItem(ICollection<EkzDeleteImpactItem> impactItems, string tableName, int rowCount)
+        {
+            if (impactItems == null || string.IsNullOrWhiteSpace(tableName) || rowCount <= 0)
+            {
+                return;
+            }
+
+            impactItems.Add(new EkzDeleteImpactItem
+            {
+                TableName = tableName,
+                RowCount = rowCount
+            });
+        }
+
+        private static string CreateEkzDeleteConfirmationMessage(IEnumerable<EkzDeleteImpactItem> impactItems)
+        {
+            var items = OrderImpactItems(impactItems).ToList();
+            var lines = new List<string>();
+            if (items.Count == 0)
+            {
+                lines.Add("Будет физически удалена только запись EKZ.");
+            }
+            else
+            {
+                lines.Add("Будут физически удалены записи:");
+                foreach (var item in items)
+                {
+                    lines.Add(string.Format("{0}: {1}", item.TableName, item.RowCount));
+                }
+            }
+
+            lines.Add(string.Empty);
+            lines.Add("Продолжить?");
+            return string.Join(Environment.NewLine, lines.ToArray());
+        }
+
+        private static string CreateEkzCascadeBlockedMessage(IEnumerable<DeleteBlockerInfo> blockers)
+        {
+            return string.Format(
+                "Экземпляр не может быть удалён автоматически. Есть связанные записи в таблицах, которые не входят в каскад удаления: {0}.",
+                FormatBlockerDetails(blockers));
+        }
+
+        private static string CreateEkzDeleteFailedMessage(SqlException ex)
+        {
+            var suffix = ex == null || string.IsNullOrWhiteSpace(ex.Message)
+                ? string.Empty
+                : " " + ex.Message.Trim();
+
+            return "Экземпляр не может быть удалён из-за ограничений ссылочной целостности БД." + suffix;
+        }
+
+        private static string FormatBlockerDetails(IEnumerable<DeleteBlockerInfo> blockers)
+        {
+            var details = string.Join(", ", (blockers ?? Enumerable.Empty<DeleteBlockerInfo>())
+                .Where(delegate(DeleteBlockerInfo blocker) { return blocker != null && blocker.RowCount > 0; })
+                .OrderBy(delegate(DeleteBlockerInfo blocker) { return blocker.TableName; }, StringComparer.OrdinalIgnoreCase)
+                .Select(delegate(DeleteBlockerInfo blocker) { return string.Format("{0}: {1}", blocker.TableName, blocker.RowCount); }));
+
+            return string.IsNullOrWhiteSpace(details) ? "связанные данные" : details;
+        }
+
+        private static List<DeleteBlockerInfo> MergeBlockers(IEnumerable<DeleteBlockerInfo> blockers)
+        {
+            return (blockers ?? Enumerable.Empty<DeleteBlockerInfo>())
+                .Where(delegate(DeleteBlockerInfo blocker) { return blocker != null && blocker.RowCount > 0 && !string.IsNullOrWhiteSpace(blocker.TableName); })
+                .GroupBy(delegate(DeleteBlockerInfo blocker) { return blocker.TableName; }, StringComparer.OrdinalIgnoreCase)
+                .Select(delegate(IGrouping<string, DeleteBlockerInfo> group)
+                {
+                    return new DeleteBlockerInfo
+                    {
+                        TableName = group.Key,
+                        RowCount = group.Sum(delegate(DeleteBlockerInfo blocker) { return blocker.RowCount; })
+                    };
+                })
+                .OrderBy(delegate(DeleteBlockerInfo blocker) { return blocker.TableName; }, StringComparer.OrdinalIgnoreCase)
+                .ToList();
+        }
+
+        private static List<DeleteBlockerInfo> LoadUnhandledDeleteBlockers(SqlConnection connection, SqlTransaction transaction, string parentTableName, IEnumerable<int> ids, IEnumerable<string> excludedChildTables)
+        {
+            var blockers = new List<DeleteBlockerInfo>();
+            foreach (var id in (ids ?? Enumerable.Empty<int>()).Where(delegate(int value) { return value > 0; }).Distinct())
+            {
+                blockers.AddRange(ReferenceDirectorySqlHelpers.LoadDeleteBlockersFromForeignKeys(connection, transaction, parentTableName, id, excludedChildTables));
+            }
+
+            return MergeBlockers(blockers);
+        }
+
+        private static bool EkzExists(SqlConnection connection, SqlTransaction transaction, int id)
+        {
+            const string sql = @"
+SELECT COUNT(1)
+FROM dbo.EKZ
+WHERE IDEKZ = @Id;";
+
+            return ExecuteScalarForId(connection, transaction, sql, id) > 0;
+        }
+
+        private static List<int> LoadEkzMkCardIds(SqlConnection connection, SqlTransaction transaction, int instrumentId)
+        {
+            const string sql = @"
+SELECT IDEKZMK
+FROM dbo.EKZMK
+WHERE IDEKZ = @InstrumentId
+ORDER BY IDEKZMK;";
+
+            return ExecuteIdList(connection, transaction, sql, "@InstrumentId", instrumentId);
+        }
+
+        private static int CountEkzMcp(SqlConnection connection, SqlTransaction transaction, int instrumentId)
+        {
+            return ExecuteScalarForInstrument(connection, transaction, @"
+SELECT COUNT(*)
+FROM dbo.EKZMCP
+WHERE IDEKZ = @InstrumentId;", instrumentId);
+        }
+
+        private static int CountEkzMkFctvl(SqlConnection connection, SqlTransaction transaction, int instrumentId)
+        {
+            return ExecuteScalarForInstrument(connection, transaction, @"
+SELECT COUNT(*)
+FROM dbo.EKZMKFCTVL child
+JOIN dbo.EKZMK parent ON parent.IDEKZMK = child.IDEKZMK
+WHERE parent.IDEKZ = @InstrumentId;", instrumentId);
+        }
+
+        private static int CountEkzMkDh(SqlConnection connection, SqlTransaction transaction, int instrumentId)
+        {
+            return ExecuteScalarForInstrument(connection, transaction, @"
+SELECT COUNT(*)
+FROM dbo.EKZMKDH child
+JOIN dbo.EKZMK parent ON parent.IDEKZMK = child.IDEKZMK
+WHERE parent.IDEKZ = @InstrumentId;", instrumentId);
+        }
+
+        private static int CountEkzMkEkzk(SqlConnection connection, SqlTransaction transaction, int instrumentId)
+        {
+            return ExecuteScalarForInstrument(connection, transaction, @"
+SELECT COUNT(*)
+FROM dbo.EKZMKEKZK child
+JOIN dbo.EKZMK parent ON parent.IDEKZMK = child.IDEKZMK
+WHERE parent.IDEKZ = @InstrumentId;", instrumentId);
+        }
+
+        private static int CountEkzMkNd(SqlConnection connection, SqlTransaction transaction, int instrumentId)
+        {
+            return ExecuteScalarForInstrument(connection, transaction, @"
+SELECT COUNT(*)
+FROM dbo.EKZMKND child
+JOIN dbo.EKZMK parent ON parent.IDEKZMK = child.IDEKZMK
+WHERE parent.IDEKZ = @InstrumentId;", instrumentId);
+        }
+
+        private static int CountKspelEkzMk(SqlConnection connection, SqlTransaction transaction, int instrumentId)
+        {
+            return ExecuteScalarForInstrument(connection, transaction, @"
+SELECT COUNT(*)
+FROM dbo.KSPELEKZMK child
+JOIN dbo.EKZMK parent ON parent.IDEKZMK = child.IDEKZMK
+WHERE parent.IDEKZ = @InstrumentId;", instrumentId);
+        }
+
+        private static int CountEkzDms(SqlConnection connection, SqlTransaction transaction, int instrumentId)
+        {
+            return ExecuteScalarForInstrument(connection, transaction, @"
+SELECT COUNT(*)
+FROM dbo.DMS d
+JOIN dbo.VDODVDD vdd ON vdd.IDVDODVDD = d.IDVDODVDD
+JOIN dbo.EKZMK m ON m.IDEKZMK = d.IDOD
+WHERE m.IDEKZ = @InstrumentId
+  AND vdd.IDSPVDOD = 2;", instrumentId);
+        }
+
+        private static int DeleteEkzMcp(SqlConnection connection, SqlTransaction transaction, int instrumentId)
+        {
+            return ExecuteScalarForInstrument(connection, transaction, @"
+DELETE FROM dbo.EKZMCP
+WHERE IDEKZ = @InstrumentId;
+
+SELECT @@ROWCOUNT;", instrumentId);
+        }
+
+        private static int DeleteEkzMkFctvl(SqlConnection connection, SqlTransaction transaction, int instrumentId)
+        {
+            return ExecuteScalarForInstrument(connection, transaction, @"
+DELETE child
+FROM dbo.EKZMKFCTVL child
+JOIN dbo.EKZMK parent ON parent.IDEKZMK = child.IDEKZMK
+WHERE parent.IDEKZ = @InstrumentId;
+
+SELECT @@ROWCOUNT;", instrumentId);
+        }
+
+        private static int DeleteEkzMkDh(SqlConnection connection, SqlTransaction transaction, int instrumentId)
+        {
+            return ExecuteScalarForInstrument(connection, transaction, @"
+DELETE child
+FROM dbo.EKZMKDH child
+JOIN dbo.EKZMK parent ON parent.IDEKZMK = child.IDEKZMK
+WHERE parent.IDEKZ = @InstrumentId;
+
+SELECT @@ROWCOUNT;", instrumentId);
+        }
+
+        private static int DeleteEkzMkEkzk(SqlConnection connection, SqlTransaction transaction, int instrumentId)
+        {
+            return ExecuteScalarForInstrument(connection, transaction, @"
+DELETE child
+FROM dbo.EKZMKEKZK child
+JOIN dbo.EKZMK parent ON parent.IDEKZMK = child.IDEKZMK
+WHERE parent.IDEKZ = @InstrumentId;
+
+SELECT @@ROWCOUNT;", instrumentId);
+        }
+
+        private static int DeleteEkzMkNd(SqlConnection connection, SqlTransaction transaction, int instrumentId)
+        {
+            return ExecuteScalarForInstrument(connection, transaction, @"
+DELETE child
+FROM dbo.EKZMKND child
+JOIN dbo.EKZMK parent ON parent.IDEKZMK = child.IDEKZMK
+WHERE parent.IDEKZ = @InstrumentId;
+
+SELECT @@ROWCOUNT;", instrumentId);
+        }
+
+        private static int DeleteKspelEkzMk(SqlConnection connection, SqlTransaction transaction, int instrumentId)
+        {
+            return ExecuteScalarForInstrument(connection, transaction, @"
+DELETE child
+FROM dbo.KSPELEKZMK child
+JOIN dbo.EKZMK parent ON parent.IDEKZMK = child.IDEKZMK
+WHERE parent.IDEKZ = @InstrumentId;
+
+SELECT @@ROWCOUNT;", instrumentId);
+        }
+
+        private static int DeleteEkzDms(SqlConnection connection, SqlTransaction transaction, int instrumentId)
+        {
+            return ExecuteScalarForInstrument(connection, transaction, @"
+DELETE d
+FROM dbo.DMS d
+JOIN dbo.VDODVDD vdd ON vdd.IDVDODVDD = d.IDVDODVDD
+JOIN dbo.EKZMK m ON m.IDEKZMK = d.IDOD
+WHERE m.IDEKZ = @InstrumentId
+  AND vdd.IDSPVDOD = 2;
+
+SELECT @@ROWCOUNT;", instrumentId);
+        }
+
+        private static int DeleteEkzMk(SqlConnection connection, SqlTransaction transaction, int instrumentId)
+        {
+            return ExecuteScalarForInstrument(connection, transaction, @"
+DELETE FROM dbo.EKZMK
+WHERE IDEKZ = @InstrumentId;
+
+SELECT @@ROWCOUNT;", instrumentId);
+        }
+
+        private static int DeleteEkz(SqlConnection connection, SqlTransaction transaction, int id)
+        {
+            return ExecuteScalarForId(connection, transaction, @"
+DELETE FROM dbo.EKZ
+WHERE IDEKZ = @Id;
+
+SELECT @@ROWCOUNT;", id);
+        }
+
+        private static int ExecuteScalarForInstrument(SqlConnection connection, SqlTransaction transaction, string sql, int instrumentId)
+        {
+            using (var command = new SqlCommand(sql, connection, transaction))
+            {
+                command.CommandTimeout = ReferenceDirectorySqlHelpers.GetCommandTimeoutSeconds();
+                command.Parameters.Add("@InstrumentId", SqlDbType.Int).Value = instrumentId;
+                return Convert.ToInt32(command.ExecuteScalar());
+            }
+        }
+
+        private static int ExecuteScalarForId(SqlConnection connection, SqlTransaction transaction, string sql, int id)
+        {
+            using (var command = new SqlCommand(sql, connection, transaction))
+            {
+                command.CommandTimeout = ReferenceDirectorySqlHelpers.GetCommandTimeoutSeconds();
+                command.Parameters.Add("@Id", SqlDbType.Int).Value = id;
+                return Convert.ToInt32(command.ExecuteScalar());
+            }
+        }
+
+        private static List<int> ExecuteIdList(SqlConnection connection, SqlTransaction transaction, string sql, string parameterName, int parameterValue)
+        {
+            var result = new List<int>();
+            using (var command = new SqlCommand(sql, connection, transaction))
+            {
+                command.CommandTimeout = ReferenceDirectorySqlHelpers.GetCommandTimeoutSeconds();
+                command.Parameters.Add(parameterName, SqlDbType.Int).Value = parameterValue;
+
+                using (var reader = command.ExecuteReader())
+                {
+                    while (reader.Read())
+                    {
+                        result.Add(reader.GetInt32(0));
+                    }
+                }
+            }
+
+            return result;
+        }
+
+        private static string NormalizeOptional(string value)
+        {
+            return string.IsNullOrWhiteSpace(value) ? null : value.Trim();
+        }
+
+        private static EkzDirectoryItem NormalizeEkzItem(EkzDirectoryItem item)
+        {
+            if (item == null)
+            {
+                throw new InvalidOperationException("Не переданы данные записи EKZ.");
+            }
+
+            var normalizedItem = new EkzDirectoryItem
+            {
+                Id = item.Id,
+                TypeSizeId = item.TypeSizeId,
+                OwnerOrganizationId = item.OwnerOrganizationId,
+                SerialNumber = NormalizeOptional(item.SerialNumber),
+                InventoryNumber = NormalizeOptional(item.InventoryNumber),
+                Notes = NormalizeOptional(item.Notes)
+            };
+
+            if (normalizedItem.TypeSizeId <= 0)
+            {
+                throw new InvalidOperationException("Не указан типоразмер СИ.");
+            }
+
+            if (normalizedItem.OwnerOrganizationId <= 0)
+            {
+                throw new InvalidOperationException("Не указана организация-владелец.");
+            }
+
+            if (string.IsNullOrWhiteSpace(normalizedItem.SerialNumber))
+            {
+                throw new InvalidOperationException("Не указан заводской номер.");
+            }
+
+            if (normalizedItem.SerialNumber.Length > EkzDirectoryRules.SerialNumberMaxLength)
+            {
+                throw new InvalidOperationException(string.Format("Заводской номер не должен превышать {0} символов.", EkzDirectoryRules.SerialNumberMaxLength));
+            }
+
+            if (!string.IsNullOrWhiteSpace(normalizedItem.InventoryNumber) && normalizedItem.InventoryNumber.Length > EkzDirectoryRules.InventoryNumberMaxLength)
+            {
+                throw new InvalidOperationException(string.Format("Инвентарный номер не должен превышать {0} символов.", EkzDirectoryRules.InventoryNumberMaxLength));
+            }
+
+            if (!string.IsNullOrWhiteSpace(normalizedItem.Notes) && normalizedItem.Notes.Length > EkzDirectoryRules.NotesMaxLength)
+            {
+                throw new InvalidOperationException(string.Format("Примечание не должно превышать {0} символов.", EkzDirectoryRules.NotesMaxLength));
+            }
+
+            return normalizedItem;
+        }
+
+        private static void EnsureEkzIsUnique(SqlConnection connection, int typeSizeId, int ownerOrganizationId, string serialNumber, int? excludeId)
+        {
+            const string sql = @"
+SELECT TOP (1) z.IDEKZ
+FROM dbo.EKZ z
+WHERE z.IDTPRZ = @TypeSizeId
+  AND z.IDFRPDV = @OwnerOrganizationId
+  AND z.NNZV = @SerialNumber
+  AND ISNULL(z.IsDeleted, 0) = 0
+  AND (@ExcludeId IS NULL OR z.IDEKZ <> @ExcludeId)
+ORDER BY z.IDEKZ DESC;";
+
+            using (var command = new SqlCommand(sql, connection))
+            {
+                command.CommandTimeout = ReferenceDirectorySqlHelpers.GetCommandTimeoutSeconds();
+                command.Parameters.Add("@TypeSizeId", SqlDbType.Int).Value = typeSizeId;
+                command.Parameters.Add("@OwnerOrganizationId", SqlDbType.Int).Value = ownerOrganizationId;
+                command.Parameters.Add("@SerialNumber", SqlDbType.VarChar, EkzDirectoryRules.SerialNumberMaxLength).Value = serialNumber;
+                ReferenceDirectorySqlHelpers.AddNullableIntParameter(command, "@ExcludeId", excludeId);
+
+                if (command.ExecuteScalar() != null)
+                {
+                    throw new InvalidOperationException("Экземпляр с таким типоразмером, владельцем и заводским номером уже существует.");
+                }
+            }
+        }
+    }
+}
diff --git a/XLAB/EkzDirectoryWindow.xaml b/XLAB/EkzDirectoryWindow.xaml
new file mode 100644
index 0000000..791e4c3
--- /dev/null
+++ b/XLAB/EkzDirectoryWindow.xaml
@@ -0,0 +1,170 @@
+<Window x:Class="XLAB.EkzDirectoryWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        Title="Экземпляры"
+        Height="900"
+        Width="1540"
+        MinHeight="760"
+        MinWidth="1260"
+        Loaded="Window_Loaded"
+        WindowStartupLocation="CenterOwner">
+    <Grid Margin="12">
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="2.2*" />
+            <RowDefinition Height="1.6*" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+        </Grid.RowDefinitions>
+
+        <Grid Grid.Row="0"
+              Margin="0,0,0,12">
+            <Grid.RowDefinitions>
+                <RowDefinition Height="Auto" />
+                <RowDefinition Height="Auto" />
+            </Grid.RowDefinitions>
+
+            <DockPanel Grid.Row="0">
+                <Button DockPanel.Dock="Right"
+                        Width="110"
+                        Margin="12,0,0,0"
+                        Command="{Binding RefreshCommand}"
+                        Content="Обновить" />
+                <StackPanel Orientation="Horizontal">
+                    <TextBlock Margin="0,0,8,0"
+                               VerticalAlignment="Center"
+                               Text="Поиск" />
+                    <TextBox Width="360"
+                             Text="{Binding SearchText, UpdateSourceTrigger=PropertyChanged}" />
+                </StackPanel>
+            </DockPanel>
+
+            <StackPanel Grid.Row="1"
+                        Margin="0,8,0,0"
+                        Orientation="Horizontal">
+                <TextBlock Margin="0,0,8,0"
+                           VerticalAlignment="Center"
+                           Text="Организация-владелец" />
+                <ComboBox Width="420"
+                          ItemsSource="{Binding OwnerFilterItems}"
+                          SelectedValue="{Binding SelectedOwnerFilterId}"
+                          SelectedValuePath="Id"
+                          DisplayMemberPath="Name"
+                          IsTextSearchEnabled="True" />
+            </StackPanel>
+        </Grid>
+
+        <GroupBox Grid.Row="1"
+                  Header="Экземпляры (EKZ)">
+            <DataGrid ItemsSource="{Binding EkzItems}"
+                      SelectedItem="{Binding SelectedEkz, Mode=TwoWay}"
+                      AutoGenerateColumns="False"
+                      CanUserAddRows="False"
+                      IsReadOnly="True"
+                      HeadersVisibility="Column">
+                <DataGrid.ContextMenu>
+                    <ContextMenu DataContext="{Binding PlacementTarget.DataContext, RelativeSource={RelativeSource Self}}">
+                        <MenuItem Header="Добавить"
+                                  Command="{Binding AddEkzCommand}" />
+                        <MenuItem Header="Изменить"
+                                  Command="{Binding EditEkzCommand}" />
+                        <MenuItem Header="Удалить"
+                                  Command="{Binding DeleteEkzCommand}" />
+                    </ContextMenu>
+                </DataGrid.ContextMenu>
+                <DataGrid.RowStyle>
+                    <Style TargetType="DataGridRow">
+                        <EventSetter Event="PreviewMouseRightButtonDown"
+                                     Handler="DataGridRow_PreviewMouseRightButtonDown" />
+                    </Style>
+                </DataGrid.RowStyle>
+                <DataGrid.Columns>
+                    <DataGridTextColumn Header="Организация-владелец"
+                                        Width="220"
+                                        Binding="{Binding OwnerOrganizationName}" />
+                    <DataGridTextColumn Header="Область измерений"
+                                        Width="160"
+                                        Binding="{Binding MeasurementAreaName}" />
+                    <DataGridTextColumn Header="Наименование"
+                                        Width="220"
+                                        Binding="{Binding InstrumentName}" />
+                    <DataGridTextColumn Header="Тип"
+                                        Width="180"
+                                        Binding="{Binding TypeName}" />
+                    <DataGridTextColumn Header="Диапазон"
+                                        Width="220"
+                                        Binding="{Binding RangeText}" />
+                    <DataGridTextColumn Header="Х-ка точности"
+                                        Width="150"
+                                        Binding="{Binding AccuracyText}" />
+                    <DataGridTextColumn Header="№ Госреестра"
+                                        Width="120"
+                                        Binding="{Binding RegistryNumber}" />
+                    <DataGridTextColumn Header="Заводской номер"
+                                        Width="140"
+                                        Binding="{Binding SerialNumber}" />
+                    <DataGridTextColumn Header="Инвентарный номер"
+                                        Width="140"
+                                        Binding="{Binding InventoryNumber}" />
+                </DataGrid.Columns>
+            </DataGrid>
+        </GroupBox>
+
+        <GroupBox Grid.Row="2"
+                  Margin="0,12,0,0"
+                  Header="МК выбранного экземпляра (EKZMK)">
+            <DataGrid ItemsSource="{Binding EkzMkItems}"
+                      AutoGenerateColumns="False"
+                      CanUserAddRows="False"
+                      IsReadOnly="True"
+                      HeadersVisibility="Column">
+                <DataGrid.Columns>
+                    <DataGridTextColumn Header="Документ"
+                                        Width="220"
+                                        Binding="{Binding DocumentNumber}" />
+                    <DataGridTextColumn Header="Документ по поверке"
+                                        Width="180"
+                                        Binding="{Binding VerificationDocumentDisplay}" />
+                    <DataGridTextColumn Header="Вид МК"
+                                        Width="120"
+                                        Binding="{Binding VerificationTypeName}" />
+                    <DataGridTextColumn Header="Организация"
+                                        Width="220"
+                                        Binding="{Binding VerificationOrganizationName}" />
+                    <DataGridTextColumn Header="Период, мес."
+                                        Width="95"
+                                        Binding="{Binding PeriodMonths}" />
+                    <DataGridTextColumn Header="Принят"
+                                        Width="95"
+                                        Binding="{Binding AcceptedOn, StringFormat=d}" />
+                    <DataGridTextColumn Header="План"
+                                        Width="95"
+                                        Binding="{Binding PlannedOn, StringFormat=d}" />
+                    <DataGridTextColumn Header="Выполнен"
+                                        Width="95"
+                                        Binding="{Binding PerformedOn, StringFormat=d}" />
+                    <DataGridTextColumn Header="Выдан"
+                                        Width="95"
+                                        Binding="{Binding IssuedOn, StringFormat=d}" />
+                    <DataGridTextColumn Header="Результат"
+                                        Width="95"
+                                        Binding="{Binding ResultText}" />
+                </DataGrid.Columns>
+            </DataGrid>
+        </GroupBox>
+
+        <TextBlock Grid.Row="3"
+                   Margin="0,8,0,0"
+                   Foreground="DimGray"
+                   Text="{Binding StatusText}" />
+
+        <StackPanel Grid.Row="4"
+                    Margin="0,12,0,0"
+                    Orientation="Horizontal"
+                    HorizontalAlignment="Right">
+            <Button Width="90"
+                    IsCancel="True"
+                    Content="Закрыть" />
+        </StackPanel>
+    </Grid>
+</Window>
diff --git a/XLAB/EkzDirectoryWindow.xaml.cs b/XLAB/EkzDirectoryWindow.xaml.cs
new file mode 100644
index 0000000..ce68ecb
--- /dev/null
+++ b/XLAB/EkzDirectoryWindow.xaml.cs
@@ -0,0 +1,33 @@
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Input;
+
+namespace XLAB
+{
+    public partial class EkzDirectoryWindow : Window
+    {
+        private readonly EkzDirectoryWindowViewModel _viewModel;
+
+        public EkzDirectoryWindow()
+        {
+            InitializeComponent();
+            _viewModel = new EkzDirectoryWindowViewModel(new EkzDirectoryService(), new EkzDirectoryDialogService(this));
+            DataContext = _viewModel;
+        }
+
+        private void DataGridRow_PreviewMouseRightButtonDown(object sender, MouseButtonEventArgs e)
+        {
+            var row = sender as DataGridRow;
+            if (row != null)
+            {
+                row.IsSelected = true;
+                row.Focus();
+            }
+        }
+
+        private async void Window_Loaded(object sender, RoutedEventArgs e)
+        {
+            await _viewModel.InitializeAsync();
+        }
+    }
+}
diff --git a/XLAB/EkzDirectoryWindowViewModel.cs b/XLAB/EkzDirectoryWindowViewModel.cs
new file mode 100644
index 0000000..5c4cde3
--- /dev/null
+++ b/XLAB/EkzDirectoryWindowViewModel.cs
@@ -0,0 +1,566 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows.Input;
+
+namespace XLAB
+{
+    internal sealed class EkzDirectoryWindowViewModel : ObservableObject
+    {
+        private readonly IEkzDirectoryDialogService _dialogService;
+        private readonly EkzDirectoryService _service;
+        private List<EkzDirectoryItem> _ekzCache;
+        private bool _isApplyingFilter;
+        private bool _isBusy;
+        private string _searchText;
+        private EkzDirectoryItem _selectedEkz;
+        private int _selectedOwnerFilterId;
+        private string _statusText;
+
+        public EkzDirectoryWindowViewModel(EkzDirectoryService service, IEkzDirectoryDialogService dialogService)
+        {
+            _service = service;
+            _dialogService = dialogService;
+            _ekzCache = new List<EkzDirectoryItem>();
+
+            EkzItems = new ObservableCollection<EkzDirectoryItem>();
+            EkzMkItems = new ObservableCollection<EkzMkDirectoryItem>();
+            OwnerFilterItems = new ObservableCollection<DirectoryLookupItem>();
+            OwnerFilterItems.Add(new DirectoryLookupItem { Id = 0, Name = "Все организации" });
+
+            AddEkzCommand = new RelayCommand(delegate { AddEkzAsync(); }, delegate { return !IsBusy; });
+            EditEkzCommand = new RelayCommand(delegate { EditEkzAsync(); }, delegate { return !IsBusy && SelectedEkz != null; });
+            DeleteEkzCommand = new RelayCommand(delegate { DeleteEkzWithPreviewAsync(); }, delegate { return !IsBusy && SelectedEkz != null; });
+            RefreshCommand = new RelayCommand(delegate { RefreshAsync(); }, delegate { return !IsBusy; });
+
+            UpdateStatus();
+        }
+
+        public ICommand AddEkzCommand { get; private set; }
+
+        public ICommand DeleteEkzCommand { get; private set; }
+
+        public ICommand EditEkzCommand { get; private set; }
+
+        public ObservableCollection<EkzDirectoryItem> EkzItems { get; private set; }
+
+        public ObservableCollection<EkzMkDirectoryItem> EkzMkItems { get; private set; }
+
+        public bool IsBusy
+        {
+            get { return _isBusy; }
+            private set
+            {
+                if (SetProperty(ref _isBusy, value))
+                {
+                    RaiseCommandStates();
+                }
+            }
+        }
+
+        public ObservableCollection<DirectoryLookupItem> OwnerFilterItems { get; private set; }
+
+        public ICommand RefreshCommand { get; private set; }
+
+        public string SearchText
+        {
+            get { return _searchText; }
+            set
+            {
+                if (SetProperty(ref _searchText, value))
+                {
+                    ApplyFilter(SelectedEkz == null ? (int?)null : SelectedEkz.Id);
+                }
+            }
+        }
+
+        public EkzDirectoryItem SelectedEkz
+        {
+            get { return _selectedEkz; }
+            set
+            {
+                if (SetProperty(ref _selectedEkz, value))
+                {
+                    RaiseCommandStates();
+
+                    if (!_isApplyingFilter)
+                    {
+                        LoadEkzMkForSelection();
+                    }
+
+                    UpdateStatus();
+                }
+            }
+        }
+
+        public int SelectedOwnerFilterId
+        {
+            get { return _selectedOwnerFilterId; }
+            set
+            {
+                if (SetProperty(ref _selectedOwnerFilterId, value))
+                {
+                    ApplyFilter(SelectedEkz == null ? (int?)null : SelectedEkz.Id);
+                }
+            }
+        }
+
+        public string StatusText
+        {
+            get { return _statusText; }
+            private set { SetProperty(ref _statusText, value); }
+        }
+
+        public async Task InitializeAsync()
+        {
+            await ExecuteBusyOperationAsync(delegate { return RefreshCoreAsync(null); });
+        }
+
+        private void AddEkzAsync()
+        {
+            var result = _dialogService.ShowEkzEditDialog(new EkzDirectoryItem(), true, _ekzCache.ToList(), _service);
+            if (result == null)
+            {
+                return;
+            }
+
+            RunMutationOperation(async delegate
+            {
+                var createdId = await Task.Run(delegate { return _service.AddEkzItem(result); });
+                await RefreshCoreAsync(createdId);
+                _dialogService.ShowInfo("Запись EKZ добавлена.");
+            });
+        }
+
+        private void ApplyFilter(int? preferredId)
+        {
+            var filteredItems = _ekzCache.Where(delegate(EkzDirectoryItem item)
+            {
+                return MatchesOwnerFilter(item) && MatchesSearch(item);
+            }).ToList();
+
+            _isApplyingFilter = true;
+            try
+            {
+                EkzItems.Clear();
+                foreach (var item in filteredItems)
+                {
+                    EkzItems.Add(item);
+                }
+
+                SelectedEkz = preferredId.HasValue
+                    ? EkzItems.FirstOrDefault(delegate(EkzDirectoryItem item) { return item.Id == preferredId.Value; })
+                    : EkzItems.FirstOrDefault();
+            }
+            finally
+            {
+                _isApplyingFilter = false;
+            }
+
+            if (!IsBusy)
+            {
+                LoadEkzMkForSelection();
+            }
+
+            UpdateStatus();
+        }
+
+        private static EkzDirectoryItem CloneEkz(EkzDirectoryItem source)
+        {
+            return new EkzDirectoryItem
+            {
+                Id = source.Id,
+                TypeSizeId = source.TypeSizeId,
+                MeasurementAreaName = source.MeasurementAreaName,
+                InstrumentName = source.InstrumentName,
+                TypeName = source.TypeName,
+                RangeText = source.RangeText,
+                AccuracyText = source.AccuracyText,
+                RegistryNumber = source.RegistryNumber,
+                OwnerOrganizationId = source.OwnerOrganizationId,
+                OwnerOrganizationName = source.OwnerOrganizationName,
+                SerialNumber = source.SerialNumber,
+                InventoryNumber = source.InventoryNumber,
+                Notes = source.Notes
+            };
+        }
+
+        private async void DeleteEkzWithPreviewAsync()
+        {
+            if (SelectedEkz == null)
+            {
+                return;
+            }
+
+            var selected = SelectedEkz;
+            EkzDeletePreview preview;
+
+            try
+            {
+                IsBusy = true;
+                preview = await Task.Run(delegate { return _service.GetEkzDeletePreview(selected.Id); });
+            }
+            catch (InvalidOperationException ex)
+            {
+                _dialogService.ShowWarning(ex.Message);
+                return;
+            }
+            catch (Exception ex)
+            {
+                _dialogService.ShowError(ex.Message);
+                return;
+            }
+            finally
+            {
+                IsBusy = false;
+            }
+
+            if (preview == null)
+            {
+                return;
+            }
+
+            if (!preview.CanDelete)
+            {
+                _dialogService.ShowWarning(preview.WarningMessage);
+                return;
+            }
+
+            if (!_dialogService.Confirm(BuildDeleteConfirmationMessage(selected, preview)))
+            {
+                return;
+            }
+
+            RunMutationOperation(async delegate
+            {
+                var result = await Task.Run(delegate { return _service.DeleteEkzItem(selected.Id); });
+                if (!result.IsDeleted)
+                {
+                    _dialogService.ShowWarning(result.WarningMessage);
+                    return;
+                }
+
+                await RefreshCoreAsync(null);
+                _dialogService.ShowInfo(BuildDeleteResultMessage(result));
+            });
+        }
+
+        private async void DeleteEkzAsync()
+        {
+            if (SelectedEkz == null)
+            {
+                return;
+            }
+
+            var selected = SelectedEkz;
+            EkzDeletePreview preview;
+
+            try
+            {
+                IsBusy = true;
+                preview = await Task.Run(delegate { return _service.GetEkzDeletePreview(selected.Id); });
+            }
+            catch (InvalidOperationException ex)
+            {
+                _dialogService.ShowWarning(ex.Message);
+                return;
+            }
+            catch (Exception ex)
+            {
+                _dialogService.ShowError(ex.Message);
+                return;
+            }
+            finally
+            {
+                IsBusy = false;
+            }
+
+            if (preview == null)
+            {
+                return;
+            }
+
+            if (!preview.CanDelete)
+            {
+                _dialogService.ShowWarning(preview.WarningMessage);
+                return;
+            }
+            if (!_dialogService.Confirm(string.Format("Удалить экземпляр \"{0}\"?", selected.SerialNumber)))
+            {
+                return;
+            }
+
+            RunMutationOperation(async delegate
+            {
+                var result = await Task.Run(delegate { return _service.DeleteEkzItem(selected.Id); });
+                if (!result.IsDeleted)
+                {
+                    _dialogService.ShowWarning(result.WarningMessage);
+                    return;
+                }
+
+                await RefreshCoreAsync(null);
+                _dialogService.ShowInfo("Запись EKZ удалена.");
+            });
+        }
+
+        private void EditEkzAsync()
+        {
+            if (SelectedEkz == null)
+            {
+                return;
+            }
+
+            var result = _dialogService.ShowEkzEditDialog(CloneEkz(SelectedEkz), false, _ekzCache.ToList(), _service);
+            if (result == null)
+            {
+                return;
+            }
+
+            RunMutationOperation(async delegate
+            {
+                await Task.Run(delegate { _service.UpdateEkzItem(result); });
+                await RefreshCoreAsync(result.Id);
+                _dialogService.ShowInfo("Запись EKZ обновлена.");
+            });
+        }
+
+        private async Task ExecuteBusyOperationAsync(Func<Task> operation)
+        {
+            try
+            {
+                IsBusy = true;
+                await operation();
+            }
+            catch (Exception ex)
+            {
+                _dialogService.ShowError(ex.Message);
+            }
+            finally
+            {
+                IsBusy = false;
+            }
+        }
+
+        private async Task ExecuteMutationOperationAsync(Func<Task> operation)
+        {
+            try
+            {
+                IsBusy = true;
+                await operation();
+            }
+            catch (InvalidOperationException ex)
+            {
+                _dialogService.ShowWarning(ex.Message);
+            }
+            catch (Exception ex)
+            {
+                _dialogService.ShowError(ex.Message);
+            }
+            finally
+            {
+                IsBusy = false;
+            }
+        }
+
+        private string[] GetSearchTokens()
+        {
+            return (SearchText ?? string.Empty)
+                .Split(new[] { ' ', '\t', '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries)
+                .Select(delegate(string token) { return token.Trim().ToUpperInvariant(); })
+                .Where(delegate(string token) { return token.Length > 0; })
+                .ToArray();
+        }
+
+        private void LoadEkzMkForSelection()
+        {
+            if (IsBusy)
+            {
+                return;
+            }
+
+            RunBusyOperation(async delegate
+            {
+                if (SelectedEkz == null)
+                {
+                    EkzMkItems.Clear();
+                    UpdateStatus();
+                    return;
+                }
+
+                await RefreshEkzMkCoreAsync(SelectedEkz.Id);
+            });
+        }
+
+        private bool MatchesOwnerFilter(EkzDirectoryItem item)
+        {
+            return SelectedOwnerFilterId <= 0
+                   || (item != null && item.OwnerOrganizationId == SelectedOwnerFilterId);
+        }
+
+        private bool MatchesSearch(EkzDirectoryItem item)
+        {
+            var tokens = GetSearchTokens();
+            if (tokens.Length == 0)
+            {
+                return true;
+            }
+
+            var haystack = string.Join(
+                    " ",
+                    new[]
+                    {
+                        item == null ? null : item.Id.ToString(),
+                        item == null ? null : item.OwnerOrganizationName,
+                        item == null ? null : item.MeasurementAreaName,
+                        item == null ? null : item.InstrumentName,
+                        item == null ? null : item.TypeName,
+                        item == null ? null : item.RangeText,
+                        item == null ? null : item.AccuracyText,
+                        item == null ? null : item.RegistryNumber,
+                        item == null ? null : item.SerialNumber,
+                        item == null ? null : item.InventoryNumber,
+                        item == null ? null : item.Notes
+                    }.Where(delegate(string value) { return !string.IsNullOrWhiteSpace(value); }))
+                .ToUpperInvariant();
+
+            return tokens.All(delegate(string token) { return haystack.IndexOf(token, StringComparison.Ordinal) >= 0; });
+        }
+
+        private async Task RefreshCoreAsync(int? idToSelect)
+        {
+            var currentSelectedId = idToSelect ?? (SelectedEkz == null ? (int?)null : SelectedEkz.Id);
+            var currentOwnerFilterId = SelectedOwnerFilterId;
+
+            var ekzTask = Task.Run(delegate { return _service.LoadEkzItems(); });
+            var ownerTask = Task.Run(delegate { return _service.LoadFrpdReferences(); });
+            await Task.WhenAll(ekzTask, ownerTask);
+
+            _ekzCache = ekzTask.Result.ToList();
+            RebuildOwnerFilters(ownerTask.Result, currentOwnerFilterId);
+
+            ApplyFilter(currentSelectedId);
+            if (SelectedEkz == null)
+            {
+                EkzMkItems.Clear();
+                UpdateStatus();
+                return;
+            }
+
+            await RefreshEkzMkCoreAsync(SelectedEkz.Id);
+            UpdateStatus();
+        }
+
+        private async Task RefreshEkzMkCoreAsync(int instrumentId)
+        {
+            var items = await Task.Run(delegate { return _service.LoadEkzMkItems(instrumentId); });
+            EkzMkItems.Clear();
+            foreach (var item in items)
+            {
+                EkzMkItems.Add(item);
+            }
+        }
+
+        private void RebuildOwnerFilters(IReadOnlyList<DirectoryLookupItem> owners, int selectedId)
+        {
+            OwnerFilterItems.Clear();
+            OwnerFilterItems.Add(new DirectoryLookupItem { Id = 0, Name = "Все организации" });
+
+            foreach (var owner in owners ?? Array.Empty<DirectoryLookupItem>())
+            {
+                OwnerFilterItems.Add(owner);
+            }
+
+            _selectedOwnerFilterId = OwnerFilterItems.Any(delegate(DirectoryLookupItem item) { return item.Id == selectedId; })
+                ? selectedId
+                : 0;
+            OnPropertyChanged("SelectedOwnerFilterId");
+        }
+
+        private void RefreshAsync()
+        {
+            RunBusyOperation(delegate { return RefreshCoreAsync(SelectedEkz == null ? (int?)null : SelectedEkz.Id); });
+        }
+
+        private void RaiseCommandStates()
+        {
+            ((RelayCommand)AddEkzCommand).RaiseCanExecuteChanged();
+            ((RelayCommand)EditEkzCommand).RaiseCanExecuteChanged();
+            ((RelayCommand)DeleteEkzCommand).RaiseCanExecuteChanged();
+            ((RelayCommand)RefreshCommand).RaiseCanExecuteChanged();
+        }
+
+        private async void RunBusyOperation(Func<Task> operation)
+        {
+            try
+            {
+                await ExecuteBusyOperationAsync(operation);
+            }
+            catch (Exception ex)
+            {
+                IsBusy = false;
+                _dialogService.ShowError(ex.Message);
+            }
+        }
+
+        private async void RunMutationOperation(Func<Task> operation)
+        {
+            try
+            {
+                await ExecuteMutationOperationAsync(operation);
+            }
+            catch (Exception ex)
+            {
+                IsBusy = false;
+                _dialogService.ShowError(ex.Message);
+            }
+        }
+
+        private static string BuildDeleteConfirmationMessage(EkzDirectoryItem selected, EkzDeletePreview preview)
+        {
+            return string.Format(
+                "Удалить экземпляр \"{0}\"?{1}{1}{2}",
+                selected == null || string.IsNullOrWhiteSpace(selected.SerialNumber) ? "(без номера)" : selected.SerialNumber,
+                Environment.NewLine,
+                preview == null ? string.Empty : preview.ConfirmationMessage ?? string.Empty);
+        }
+
+        private static string BuildDeleteResultMessage(EkzDeleteResult result)
+        {
+            var impacts = result == null || result.ImpactItems == null
+                ? new List<EkzDeleteImpactItem>()
+                : result.ImpactItems.Where(delegate(EkzDeleteImpactItem item) { return item != null && item.RowCount > 0; }).ToList();
+
+            if (impacts.Count == 0)
+            {
+                return "Запись EKZ удалена.";
+            }
+
+            return "Удалены записи: " + string.Join(", ", impacts.Select(delegate(EkzDeleteImpactItem item)
+            {
+                return string.Format("{0}: {1}", item.TableName, item.RowCount);
+            })) + ".";
+        }
+
+        private void UpdateStatus()
+        {
+            var searchPrefix = string.IsNullOrWhiteSpace(SearchText)
+                ? string.Empty
+                : string.Format("Поиск: \"{0}\". ", SearchText.Trim());
+            var ownerName = OwnerFilterItems.FirstOrDefault(delegate(DirectoryLookupItem item) { return item.Id == SelectedOwnerFilterId; });
+            var ownerPrefix = SelectedOwnerFilterId <= 0 || ownerName == null
+                ? string.Empty
+                : string.Format("Владелец: \"{0}\". ", ownerName.Name);
+
+            StatusText = string.Format(
+                "{0}{1}EKZ: {2}/{3}. EKZMK: {4}.",
+                searchPrefix,
+                ownerPrefix,
+                EkzItems.Count,
+                _ekzCache.Count,
+                EkzMkItems.Count);
+        }
+    }
+}
diff --git a/XLAB/EkzEditWindow.xaml b/XLAB/EkzEditWindow.xaml
new file mode 100644
index 0000000..b281b51
--- /dev/null
+++ b/XLAB/EkzEditWindow.xaml
@@ -0,0 +1,109 @@
+<Window x:Class="XLAB.EkzEditWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        Title="{Binding Title}"
+        Height="340"
+        Width="860"
+        MinHeight="340"
+        MinWidth="760"
+        WindowStartupLocation="CenterOwner">
+    <Grid Margin="16">
+        <Grid.RowDefinitions>
+            <RowDefinition Height="*" />
+            <RowDefinition Height="Auto" />
+        </Grid.RowDefinitions>
+
+        <Grid Grid.Row="0">
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="220" />
+                <ColumnDefinition Width="*" />
+            </Grid.ColumnDefinitions>
+            <Grid.RowDefinitions>
+                <RowDefinition Height="Auto" />
+                <RowDefinition Height="Auto" />
+                <RowDefinition Height="Auto" />
+                <RowDefinition Height="Auto" />
+                <RowDefinition Height="*" />
+            </Grid.RowDefinitions>
+
+            <TextBlock Grid.Row="0"
+                       Grid.Column="0"
+                       Margin="0,0,12,8"
+                       VerticalAlignment="Center"
+                       Text="Типоразмер СИ" />
+            <ComboBox Grid.Row="0"
+                      Grid.Column="1"
+                      Margin="0,0,0,8"
+                      ItemsSource="{Binding TypeSizeItems}"
+                      SelectedValue="{Binding TypeSizeId}"
+                      SelectedValuePath="Id"
+                      DisplayMemberPath="Name"
+                      IsTextSearchEnabled="True" />
+
+            <TextBlock Grid.Row="1"
+                       Grid.Column="0"
+                       Margin="0,0,12,8"
+                       VerticalAlignment="Center"
+                       Text="Организация-владелец" />
+            <ComboBox Grid.Row="1"
+                      Grid.Column="1"
+                      Margin="0,0,0,8"
+                      ItemsSource="{Binding OwnerItems}"
+                      SelectedValue="{Binding OwnerOrganizationId}"
+                      SelectedValuePath="Id"
+                      DisplayMemberPath="Name"
+                      IsTextSearchEnabled="True" />
+
+            <TextBlock Grid.Row="2"
+                       Grid.Column="0"
+                       Margin="0,0,12,8"
+                       VerticalAlignment="Center"
+                       Text="Заводской номер" />
+            <TextBox Grid.Row="2"
+                     Grid.Column="1"
+                     Margin="0,0,0,8"
+                     Text="{Binding SerialNumber, UpdateSourceTrigger=PropertyChanged}" />
+
+            <TextBlock Grid.Row="3"
+                       Grid.Column="0"
+                       Margin="0,0,12,8"
+                       VerticalAlignment="Center"
+                       Text="Инвентарный номер" />
+            <TextBox Grid.Row="3"
+                     Grid.Column="1"
+                     Margin="0,0,0,8"
+                     Text="{Binding InventoryNumber, UpdateSourceTrigger=PropertyChanged}" />
+
+            <TextBlock Grid.Row="4"
+                       Grid.Column="0"
+                       Margin="0,0,12,0"
+                       VerticalAlignment="Top"
+                       Text="Примечание" />
+            <TextBox Grid.Row="4"
+                     Grid.Column="1"
+                     AcceptsReturn="True"
+                     VerticalScrollBarVisibility="Auto"
+                     TextWrapping="Wrap"
+                     Text="{Binding Notes, UpdateSourceTrigger=PropertyChanged}" />
+        </Grid>
+
+        <DockPanel Grid.Row="1"
+                   Margin="0,12,0,0">
+            <TextBlock DockPanel.Dock="Left"
+                       VerticalAlignment="Center"
+                       Foreground="Firebrick"
+                       Text="{Binding ValidationMessage}" />
+            <StackPanel DockPanel.Dock="Right"
+                        Orientation="Horizontal">
+                <Button Width="100"
+                        Margin="0,0,8,0"
+                        IsDefault="True"
+                        Command="{Binding ConfirmCommand}"
+                        Content="Сохранить" />
+                <Button Width="90"
+                        Command="{Binding CancelCommand}"
+                        Content="Отмена" />
+            </StackPanel>
+        </DockPanel>
+    </Grid>
+</Window>
diff --git a/XLAB/EkzEditWindow.xaml.cs b/XLAB/EkzEditWindow.xaml.cs
new file mode 100644
index 0000000..48e0a06
--- /dev/null
+++ b/XLAB/EkzEditWindow.xaml.cs
@@ -0,0 +1,20 @@
+using System.Windows;
+
+namespace XLAB
+{
+    public partial class EkzEditWindow : Window
+    {
+        internal EkzEditWindow(EkzEditWindowViewModel viewModel)
+        {
+            InitializeComponent();
+            DataContext = viewModel;
+            viewModel.CloseRequested += ViewModelOnCloseRequested;
+        }
+
+        private void ViewModelOnCloseRequested(object sender, bool? dialogResult)
+        {
+            DialogResult = dialogResult;
+            Close();
+        }
+    }
+}
diff --git a/XLAB/EkzEditWindowViewModel.cs b/XLAB/EkzEditWindowViewModel.cs
new file mode 100644
index 0000000..ec8f0db
--- /dev/null
+++ b/XLAB/EkzEditWindowViewModel.cs
@@ -0,0 +1,185 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Windows.Input;
+
+namespace XLAB
+{
+    internal sealed class EkzEditWindowViewModel : ObservableObject
+    {
+        private readonly IReadOnlyList<EkzDirectoryItem> _existingItems;
+        private string _inventoryNumber;
+        private string _notes;
+        private int _ownerOrganizationId;
+        private string _serialNumber;
+        private int _typeSizeId;
+        private string _validationMessage;
+
+        public EkzEditWindowViewModel(EkzDirectoryItem seed, bool isNew, IReadOnlyList<EkzDirectoryItem> existingItems, EkzDirectoryService service)
+        {
+            var source = seed ?? new EkzDirectoryItem();
+            _existingItems = existingItems ?? Array.Empty<EkzDirectoryItem>();
+
+            Id = source.Id;
+            IsNew = isNew;
+            TypeSizeItems = service.LoadTypeSizeReferences();
+            OwnerItems = service.LoadFrpdReferences();
+            TypeSizeId = source.TypeSizeId;
+            OwnerOrganizationId = source.OwnerOrganizationId;
+            SerialNumber = source.SerialNumber ?? string.Empty;
+            InventoryNumber = source.InventoryNumber ?? string.Empty;
+            Notes = source.Notes ?? string.Empty;
+
+            ConfirmCommand = new RelayCommand(Confirm);
+            CancelCommand = new RelayCommand(Cancel);
+        }
+
+        public event EventHandler<bool?> CloseRequested;
+
+        public ICommand CancelCommand { get; private set; }
+
+        public ICommand ConfirmCommand { get; private set; }
+
+        public int Id { get; private set; }
+
+        public bool IsNew { get; private set; }
+
+        public string InventoryNumber
+        {
+            get { return _inventoryNumber; }
+            set { SetProperty(ref _inventoryNumber, value); }
+        }
+
+        public string Notes
+        {
+            get { return _notes; }
+            set { SetProperty(ref _notes, value); }
+        }
+
+        public IReadOnlyList<DirectoryLookupItem> OwnerItems { get; private set; }
+
+        public int OwnerOrganizationId
+        {
+            get { return _ownerOrganizationId; }
+            set { SetProperty(ref _ownerOrganizationId, value); }
+        }
+
+        public string SerialNumber
+        {
+            get { return _serialNumber; }
+            set { SetProperty(ref _serialNumber, value); }
+        }
+
+        public string Title
+        {
+            get { return IsNew ? "Новый экземпляр" : "Редактирование экземпляра"; }
+        }
+
+        public IReadOnlyList<DirectoryLookupItem> TypeSizeItems { get; private set; }
+
+        public int TypeSizeId
+        {
+            get { return _typeSizeId; }
+            set { SetProperty(ref _typeSizeId, value); }
+        }
+
+        public string ValidationMessage
+        {
+            get { return _validationMessage; }
+            private set { SetProperty(ref _validationMessage, value); }
+        }
+
+        public EkzDirectoryItem ToResult()
+        {
+            return new EkzDirectoryItem
+            {
+                Id = Id,
+                TypeSizeId = TypeSizeId,
+                OwnerOrganizationId = OwnerOrganizationId,
+                SerialNumber = Normalize(SerialNumber),
+                InventoryNumber = Normalize(InventoryNumber),
+                Notes = Normalize(Notes)
+            };
+        }
+
+        private void Cancel(object parameter)
+        {
+            RaiseCloseRequested(false);
+        }
+
+        private void Confirm(object parameter)
+        {
+            var serialNumber = Normalize(SerialNumber);
+            var inventoryNumber = Normalize(InventoryNumber);
+            var notes = Normalize(Notes);
+
+            if (TypeSizeId <= 0)
+            {
+                ValidationMessage = "Укажите типоразмер СИ.";
+                return;
+            }
+
+            if (OwnerOrganizationId <= 0)
+            {
+                ValidationMessage = "Укажите организацию-владельца.";
+                return;
+            }
+
+            if (string.IsNullOrWhiteSpace(serialNumber))
+            {
+                ValidationMessage = "Укажите заводской номер.";
+                return;
+            }
+
+            if (serialNumber.Length > EkzDirectoryRules.SerialNumberMaxLength)
+            {
+                ValidationMessage = string.Format("Заводской номер не должен превышать {0} символов.", EkzDirectoryRules.SerialNumberMaxLength);
+                return;
+            }
+
+            if (!string.IsNullOrWhiteSpace(inventoryNumber) && inventoryNumber.Length > EkzDirectoryRules.InventoryNumberMaxLength)
+            {
+                ValidationMessage = string.Format("Инвентарный номер не должен превышать {0} символов.", EkzDirectoryRules.InventoryNumberMaxLength);
+                return;
+            }
+
+            if (!string.IsNullOrWhiteSpace(notes) && notes.Length > EkzDirectoryRules.NotesMaxLength)
+            {
+                ValidationMessage = string.Format("Примечание не должно превышать {0} символов.", EkzDirectoryRules.NotesMaxLength);
+                return;
+            }
+
+            var duplicate = _existingItems.FirstOrDefault(delegate(EkzDirectoryItem item)
+            {
+                return item != null
+                       && item.Id != Id
+                       && item.TypeSizeId == TypeSizeId
+                       && item.OwnerOrganizationId == OwnerOrganizationId
+                       && string.Equals(item.SerialNumber ?? string.Empty, serialNumber ?? string.Empty, StringComparison.OrdinalIgnoreCase);
+            });
+
+            if (duplicate != null)
+            {
+                ValidationMessage = "Экземпляр с таким типоразмером, владельцем и заводским номером уже существует.";
+                return;
+            }
+
+            ValidationMessage = string.Empty;
+            RaiseCloseRequested(true);
+        }
+
+        private static string Normalize(string value)
+        {
+            return string.IsNullOrWhiteSpace(value) ? string.Empty : value.Trim();
+        }
+
+        private void RaiseCloseRequested(bool? dialogResult)
+        {
+            var handler = CloseRequested;
+            if (handler != null)
+            {
+                handler(this, dialogResult);
+            }
+        }
+    }
+}
diff --git a/XLAB/MainWindow.xaml b/XLAB/MainWindow.xaml
index a4c8226..ba3789f 100644
--- a/XLAB/MainWindow.xaml
+++ b/XLAB/MainWindow.xaml
@@ -1,4 +1,4 @@
-<Window x:Class="XLAB.MainWindow"
+<Window x:Class="XLAB.MainWindow"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         Title="Приемо-сдаточные ведомости"
@@ -44,6 +44,10 @@
           Click="PrsnDirectoryMenuItem_Click" />
             <MenuItem Header="Типоразмеры"
           Click="TypeSizeDirectoryMenuItem_Click" />
+            <MenuItem Header="Экземпляры"
+          Click="EkzDirectoryMenuItem_Click" />
+            <MenuItem Header="Отчеты"
+          Click="VerificationReportsMenuItem_Click" />
         </Menu>
 
         <Grid Grid.Row="1">
@@ -304,7 +308,28 @@
 
                 <GroupBox Grid.Row="1" Header="Группы приборов выбранного документа">
                     <Grid Margin="8">
-                        <DataGrid ItemsSource="{Binding DocumentGroupSummaries}"
+                        <Grid.RowDefinitions>
+                            <RowDefinition Height="Auto" />
+                            <RowDefinition Height="*" />
+                        </Grid.RowDefinitions>
+
+                        <Grid Margin="0,0,0,8">
+                            <Grid.ColumnDefinitions>
+                                <ColumnDefinition Width="290" />
+                                <ColumnDefinition Width="*" />
+                            </Grid.ColumnDefinitions>
+
+                            <TextBox Grid.Column="0"
+                                     Text="{Binding GroupFilterText, UpdateSourceTrigger=PropertyChanged}" />
+                            <TextBlock Grid.Column="1"
+                                       Margin="12,0,0,0"
+                                       VerticalAlignment="Center"
+                                       Foreground="DimGray"
+                                       Text="Поиск по типу, диапазону, госреестру или зав. №" />
+                        </Grid>
+
+                        <DataGrid Grid.Row="1"
+                                  ItemsSource="{Binding DocumentGroupsView}"
                                   SelectedItem="{Binding SelectedDocumentGroup, Mode=TwoWay}"
                                   AutoGenerateColumns="False"
                                   CanUserAddRows="False"
diff --git a/XLAB/MainWindow.xaml.cs b/XLAB/MainWindow.xaml.cs
index dd9c154..b82cd8f 100644
--- a/XLAB/MainWindow.xaml.cs
+++ b/XLAB/MainWindow.xaml.cs
@@ -86,6 +86,20 @@ namespace XLAB
             window.ShowDialog();
         }
 
+        private void EkzDirectoryMenuItem_Click(object sender, RoutedEventArgs e)
+        {
+            var window = new EkzDirectoryWindow();
+            window.Owner = this;
+            window.ShowDialog();
+        }
+
+        private void VerificationReportsMenuItem_Click(object sender, RoutedEventArgs e)
+        {
+            var window = new VerificationReportsWindow();
+            window.Owner = this;
+            window.ShowDialog();
+        }
+
         private void SpoiDirectoryMenuItem_Click(object sender, RoutedEventArgs e)
         {
             var window = new SpoiDirectoryWindow();
diff --git a/XLAB/MainWindowViewModel.cs b/XLAB/MainWindowViewModel.cs
index 0bf986d..509fe9f 100644
--- a/XLAB/MainWindowViewModel.cs
+++ b/XLAB/MainWindowViewModel.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.ComponentModel;
@@ -20,6 +20,7 @@ namespace XLAB
         private string _documentNumberEditor;
         private string _documentStatusText;
         private string _detailTableCountText;
+        private string _groupFilterText;
         private string _groupDetailFilterText;
         private string _headerDepartmentName;
         private int _headerInstrumentCount;
@@ -50,6 +51,9 @@ namespace XLAB
             DocumentsView = CollectionViewSource.GetDefaultView(Documents);
             DocumentsView.Filter = FilterDocuments;
 
+            DocumentGroupsView = CollectionViewSource.GetDefaultView(DocumentGroupSummaries);
+            DocumentGroupsView.Filter = FilterDocumentGroups;
+
             DocumentLinesView = CollectionViewSource.GetDefaultView(DocumentLines);
             DocumentLinesView.Filter = FilterDocumentLines;
 
@@ -132,6 +136,8 @@ namespace XLAB
 
         public ObservableCollection<PsvDocumentGroupSummary> DocumentGroupSummaries { get; private set; }
 
+        public ICollectionView DocumentGroupsView { get; private set; }
+
         public string DocumentStatusText
         {
             get { return _documentStatusText; }
@@ -154,6 +160,18 @@ namespace XLAB
 
         public ICommand DeleteSelectedGroupsCommand { get; private set; }
 
+        public string GroupFilterText
+        {
+            get { return _groupFilterText; }
+            set
+            {
+                if (SetProperty(ref _groupFilterText, value))
+                {
+                    RefreshDocumentGroupsView();
+                }
+            }
+        }
+
         public string GroupDetailFilterText
         {
             get { return _groupDetailFilterText; }
@@ -466,6 +484,23 @@ namespace XLAB
             return document != null && document.IssuedOn.HasValue;
         }
 
+        private static string BuildSerialNumbersText(IEnumerable<PsvDocumentLine> lines)
+        {
+            var serialNumbers = (lines ?? Enumerable.Empty<PsvDocumentLine>())
+                .Select(delegate(PsvDocumentLine line)
+                {
+                    return line == null || string.IsNullOrWhiteSpace(line.SerialNumber)
+                        ? null
+                        : line.SerialNumber.Trim();
+                })
+                .Where(delegate(string serialNumber) { return !string.IsNullOrWhiteSpace(serialNumber); })
+                .Distinct(StringComparer.OrdinalIgnoreCase)
+                .OrderBy(delegate(string serialNumber) { return serialNumber; }, StringComparer.OrdinalIgnoreCase)
+                .ToList();
+
+            return serialNumbers.Count == 0 ? string.Empty : string.Join(", ", serialNumbers.ToArray());
+        }
+
         private static bool HasVerificationData(PsvDocumentLine line)
         {
             return line != null
@@ -1128,7 +1163,7 @@ namespace XLAB
 
             RunBusyOperation(async delegate
             {
-                await Task.Run(delegate { _service.SaveLineVerification(persistedCardIds, result); });
+                await _service.SaveLineVerificationAsync(persistedCardIds, result);
 
                 foreach (var pendingLine in pendingLines)
                 {
@@ -1212,8 +1247,8 @@ namespace XLAB
             try
             {
                 IsBusy = true;
-                verifiers = await Task.Run(delegate { return _service.LoadVerifiers(); });
-                documentForms = await Task.Run(delegate { return _service.LoadVerificationDocumentForms(isPassed); });
+                verifiers = await _service.LoadVerifiersAsync();
+                documentForms = await _service.LoadVerificationDocumentFormsAsync(isPassed);
             }
             catch (Exception ex)
             {
@@ -1252,7 +1287,7 @@ namespace XLAB
 
             RunBusyOperation(async delegate
             {
-                await Task.Run(delegate { _service.SaveLineVerification(persistedCardIds, result); });
+                await _service.SaveLineVerificationAsync(persistedCardIds, result);
 
                 foreach (var pendingLine in pendingLines)
                 {
@@ -1302,7 +1337,7 @@ namespace XLAB
 
             RunBusyOperation(async delegate
             {
-                await Task.Run(delegate { _service.ResetLineVerification(persistedCardIds); });
+                await _service.ResetLineVerificationAsync(persistedCardIds);
 
                 foreach (var pendingLine in pendingLines)
                 {
@@ -1335,7 +1370,7 @@ namespace XLAB
 
             RunBusyOperation(async delegate
             {
-                var result = await Task.Run(delegate { return _service.DeleteDocument(selectedDocument.DocumentNumber); });
+                var result = await _service.DeleteDocumentAsync(selectedDocument.DocumentNumber);
                 _pendingLinesByDocumentKey.Remove(selectedDocument.DocumentKey);
                 await RefreshDocumentsCoreAsync(null, null);
                 _dialogService.ShowInfo(
@@ -1379,7 +1414,7 @@ namespace XLAB
 
             RunBusyOperation(async delegate
             {
-                var persistedLines = await Task.Run(delegate { return _service.LoadDocumentLines(selectedDocument.DocumentNumber); });
+                var persistedLines = await _service.LoadDocumentLinesAsync(selectedDocument.DocumentNumber);
                 var linesToPrint = MergeDocumentLinesForPrint(selectedDocument, persistedLines);
                 if (linesToPrint.Count == 0)
                 {
@@ -1457,10 +1492,7 @@ namespace XLAB
 
                 if (persistedCardIds.Count > 0)
                 {
-                    deletedResult = await Task.Run(delegate
-                    {
-                        return _service.DeleteDocumentGroups(selectedDocumentNumber, persistedCardIds);
-                    });
+                    deletedResult = await _service.DeleteDocumentGroupsAsync(selectedDocumentNumber, persistedCardIds);
                 }
 
                 var remainingPendingCount = pendingLines.Count;
@@ -1565,10 +1597,7 @@ namespace XLAB
 
                 if (persistedCardIds.Count > 0)
                 {
-                    deletedResult = await Task.Run(delegate
-                    {
-                        return _service.DeleteDocumentGroups(selectedDocumentNumber, persistedCardIds);
-                    });
+                    deletedResult = await _service.DeleteDocumentGroupsAsync(selectedDocumentNumber, persistedCardIds);
                 }
 
                 var remainingPendingCount = pendingLines.Count;
@@ -1668,6 +1697,7 @@ namespace XLAB
             document.PassedCount = materializedLines.Count(delegate(PsvDocumentLine line) { return line.IsPassed == true; });
             document.FailedCount = materializedLines.Count(delegate(PsvDocumentLine line) { return line.IsPassed == false; });
             document.IssuedCount = materializedLines.Count(delegate(PsvDocumentLine line) { return line.IssuedOn.HasValue; });
+            document.SerialNumbersText = BuildSerialNumbersText(materializedLines);
         }
 
         private async Task ExecuteBusyOperationAsync(Func<Task> operation)
@@ -1707,7 +1737,8 @@ namespace XLAB
 
             if (!string.IsNullOrWhiteSpace(DocumentFilterText)
                 && !Contains(document.DocumentNumber, DocumentFilterText)
-                && !Contains(document.CustomerName, DocumentFilterText))
+                && !Contains(document.CustomerName, DocumentFilterText)
+                && !Contains(document.SerialNumbersText, DocumentFilterText))
             {
                 return false;
             }
@@ -1715,6 +1746,25 @@ namespace XLAB
             return true;
         }
 
+        private bool FilterDocumentGroups(object item)
+        {
+            var group = item as PsvDocumentGroupSummary;
+            if (group == null)
+            {
+                return false;
+            }
+
+            if (string.IsNullOrWhiteSpace(GroupFilterText))
+            {
+                return true;
+            }
+
+            return Contains(group.InstrumentType, GroupFilterText)
+                   || Contains(group.RangeText, GroupFilterText)
+                   || Contains(group.RegistryNumber, GroupFilterText)
+                   || Contains(group.SerialNumbersText, GroupFilterText);
+        }
+
         private string BuildDocumentStatusText(int count)
         {
             if (ShowClosedDocuments)
@@ -1759,6 +1809,26 @@ namespace XLAB
             });
         }
 
+        private PsvDocumentGroupSummary FindMatchingVisibleGroup(PsvDocumentGroupSummary group)
+        {
+            if (group == null)
+            {
+                return null;
+            }
+
+            return GetVisibleDocumentGroups().FirstOrDefault(delegate(PsvDocumentGroupSummary current)
+            {
+                return AreSameGroup(current, group);
+            });
+        }
+
+        private List<PsvDocumentGroupSummary> GetVisibleDocumentGroups()
+        {
+            return DocumentGroupsView == null
+                ? new List<PsvDocumentGroupSummary>()
+                : DocumentGroupsView.Cast<object>().OfType<PsvDocumentGroupSummary>().ToList();
+        }
+
         private static bool AreSameGroup(PsvDocumentGroupSummary left, PsvDocumentGroupSummary right)
         {
             return left != null
@@ -1856,7 +1926,7 @@ namespace XLAB
 
         private async Task LoadCustomersCoreAsync()
         {
-            var customers = await Task.Run(delegate { return _service.LoadCustomers(); });
+                var customers = await _service.LoadCustomersAsync();
             ClearCollections(Customers);
             foreach (var customer in customers)
             {
@@ -1907,7 +1977,7 @@ namespace XLAB
 
             var previousGroup = SelectedDocumentGroup;
             var documentNumber = SelectedDocument.DocumentNumber;
-            var persistedLines = await Task.Run(delegate { return _service.LoadDocumentLines(documentNumber); });
+            var persistedLines = await _service.LoadDocumentLinesAsync(documentNumber);
             var mergedLines = persistedLines.Concat(GetPendingLines(SelectedDocument)).ToList();
 
             ApplyDocumentLines(mergedLines, previousGroup);
@@ -1936,7 +2006,7 @@ namespace XLAB
             try
             {
                 IsBusy = true;
-                instruments = await Task.Run(delegate { return _service.LoadCustomerInstruments(customerId); });
+                instruments = await _service.LoadCustomerInstrumentsAsync(customerId);
             }
             catch (Exception ex)
             {
@@ -1980,7 +2050,7 @@ namespace XLAB
             try
             {
                 IsBusy = true;
-                instrumentTypes = await Task.Run(delegate { return _service.LoadInstrumentTypes(); });
+                instrumentTypes = await _service.LoadInstrumentTypesAsync();
             }
             catch (Exception ex)
             {
@@ -2074,7 +2144,7 @@ namespace XLAB
 
             if (SelectedDocument.IsDraft)
             {
-                SelectedDocument.ItemCount = pendingLines.Count;
+                UpdateDocumentSummaryFromLines(SelectedDocument, pendingLines);
             }
 
             LoadSelectedDocumentAsync();
@@ -2182,7 +2252,7 @@ namespace XLAB
 
             if (SelectedDocument.IsDraft)
             {
-                SelectedDocument.ItemCount = pendingLines.Count;
+                UpdateDocumentSummaryFromLines(SelectedDocument, pendingLines);
             }
 
             LoadSelectedDocumentAsync();
@@ -2202,7 +2272,8 @@ namespace XLAB
             }
 
             RebuildDocumentGroupSummaries(DocumentLines);
-            SelectedDocumentGroup = FindMatchingGroup(previousGroup) ?? DocumentGroupSummaries.FirstOrDefault();
+            SelectedDocumentGroup = FindMatchingVisibleGroup(previousGroup)
+                ?? GetVisibleDocumentGroups().FirstOrDefault();
             SelectedDocumentLine = previousLine == null
                 ? null
                 : DocumentLines.FirstOrDefault(delegate(PsvDocumentLine line)
@@ -2217,6 +2288,7 @@ namespace XLAB
                            && string.Equals(line.DuplicateKey, previousLine.DuplicateKey, StringComparison.OrdinalIgnoreCase);
                 });
             HeaderInstrumentCount = DocumentLines.Count;
+            RefreshDocumentGroupsView();
             RefreshDocumentLinesView();
             RaiseCommandStates();
         }
@@ -2261,6 +2333,7 @@ namespace XLAB
                     InstrumentType = group.Key.InstrumentType,
                     RangeText = group.Key.RangeText,
                     RegistryNumber = group.Key.RegistryNumber,
+                    SerialNumbersText = BuildSerialNumbersText(group),
                     IsBatchSelected = checkedGroups.Any(delegate(PsvDocumentGroupSummary previous)
                     {
                         return string.Equals(previous.InstrumentType ?? string.Empty, group.Key.InstrumentType, StringComparison.OrdinalIgnoreCase)
@@ -2280,6 +2353,36 @@ namespace XLAB
             }
         }
 
+        private void RefreshDocumentGroupsView()
+        {
+            if (DocumentGroupsView != null)
+            {
+                DocumentGroupsView.Refresh();
+            }
+
+            var selectedVisibleGroup = FindMatchingVisibleGroup(SelectedDocumentGroup);
+            if (selectedVisibleGroup != null)
+            {
+                if (!ReferenceEquals(SelectedDocumentGroup, selectedVisibleGroup))
+                {
+                    SelectedDocumentGroup = selectedVisibleGroup;
+                    return;
+                }
+
+                RefreshDocumentLinesView();
+                return;
+            }
+
+            var firstVisibleGroup = GetVisibleDocumentGroups().FirstOrDefault();
+            if (!ReferenceEquals(SelectedDocumentGroup, firstVisibleGroup))
+            {
+                SelectedDocumentGroup = firstVisibleGroup;
+                return;
+            }
+
+            RefreshDocumentLinesView();
+        }
+
         private void RefreshDocumentLinesView()
         {
             DocumentLinesView.Refresh();
@@ -2296,7 +2399,7 @@ namespace XLAB
         {
             DocumentStatusText = "Загрузка списка ПСВ...";
 
-            var databaseDocuments = await Task.Run(delegate { return _service.LoadDocuments(ShowClosedDocuments); });
+            var databaseDocuments = await _service.LoadDocumentsAsync(ShowClosedDocuments);
             var currentDocumentKey = documentKeyToSelect ?? (SelectedDocument != null ? SelectedDocument.DocumentKey : null);
             var currentDocumentNumber = documentNumberToSelect ?? (SelectedDocument != null ? SelectedDocument.DocumentNumber : null);
 
@@ -2375,7 +2478,7 @@ namespace XLAB
                 }
 
                 if (DocumentExistsInCollections(DocumentNumberEditor.Trim(), selectedDocument.DocumentKey)
-                    || _service.DocumentNumberExists(DocumentNumberEditor.Trim(), selectedDocument.IsDraft ? null : selectedDocument.DocumentNumber))
+                    || await _service.DocumentNumberExistsAsync(DocumentNumberEditor.Trim(), selectedDocument.IsDraft ? null : selectedDocument.DocumentNumber))
                 {
                     _dialogService.ShowWarning("ПСВ с таким номером уже существует.");
                     return;
@@ -2443,7 +2546,7 @@ namespace XLAB
                     var prompt = messageText + " ПСВ закрыта. Распечатать приемо-сдаточную ведомость?";
                     if (_dialogService.Confirm(prompt))
                     {
-                        var printLines = await Task.Run(delegate { return _service.LoadDocumentLines(result.DocumentNumber); });
+                        var printLines = await _service.LoadDocumentLinesAsync(result.DocumentNumber);
                         if (printDocument != null)
                         {
                             printDocument.DocumentNumber = result.DocumentNumber;
@@ -2462,6 +2565,8 @@ namespace XLAB
 
         private void UpdateLineStatus()
         {
+            var visibleGroupCount = GetVisibleDocumentGroups().Count;
+
             if (SelectedDocument == null)
             {
                 DetailTableCountText = "Приборов в таблице: 0.";
@@ -2478,10 +2583,19 @@ namespace XLAB
                 return;
             }
 
+            if (visibleGroupCount == 0)
+            {
+                DetailTableCountText = "Приборов в таблице: 0.";
+                LineStatusText = string.IsNullOrWhiteSpace(GroupFilterText)
+                    ? "Выберите группу."
+                    : string.Format("Группы по фильтру \"{0}\" не найдены.", GroupFilterText.Trim());
+                return;
+            }
+
             if (SelectedDocumentGroup == null)
             {
                 DetailTableCountText = "Приборов в таблице: 0.";
-                LineStatusText = string.Format("Групп: {0}. Выберите группу.", DocumentGroupSummaries.Count);
+                LineStatusText = string.Format("Групп: {0}/{1}. Выберите группу.", visibleGroupCount, DocumentGroupSummaries.Count);
                 return;
             }
 
@@ -2495,7 +2609,8 @@ namespace XLAB
             DetailTableCountText = string.Format("Приборов в таблице: {0}.", filteredCount);
 
             LineStatusText = string.Format(
-                "Групп: {0}. Приборов в выбранной группе: {1}. Отображено по фильтру: {2}. Не сохранено строк: {3}.",
+                "Групп: {0}/{1}. Приборов в выбранной группе: {2}. Отображено по фильтру: {3}. Не сохранено строк: {4}.",
+                visibleGroupCount,
                 DocumentGroupSummaries.Count,
                 groupLineCount,
                 filteredCount,
diff --git a/XLAB/PsvDataService.cs b/XLAB/PsvDataService.cs
index 3d35682..a8b1450 100644
--- a/XLAB/PsvDataService.cs
+++ b/XLAB/PsvDataService.cs
@@ -4,6 +4,8 @@ using System.Configuration;
 using System.Data;
 using System.Data.SqlClient;
 using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
 
 namespace XLAB
 {
@@ -34,6 +36,15 @@ WHERE NNZVPV = @DocumentNumber
             }
         }
 
+        public Task<bool> DocumentNumberExistsAsync(string documentNumber, string excludeDocumentNumber, CancellationToken cancellationToken = default(CancellationToken))
+        {
+            return Task.Run(delegate
+            {
+                cancellationToken.ThrowIfCancellationRequested();
+                return DocumentNumberExists(documentNumber, excludeDocumentNumber);
+            }, cancellationToken);
+        }
+
         public IReadOnlyList<CustomerReference> LoadCustomers()
         {
             const string sql = @"
@@ -558,11 +569,84 @@ ORDER BY " + (loadClosedDocumentsForCurrentYear
                         });
                     }
                 }
+
+                var serialNumbersByDocument = LoadDocumentSerialNumbers(connection, loadClosedDocumentsForCurrentYear, currentYearStart, nextYearStart);
+                foreach (var document in documents)
+                {
+                    string serialNumbersText;
+                    if (serialNumbersByDocument.TryGetValue(document.DocumentNumber, out serialNumbersText))
+                    {
+                        document.SerialNumbersText = serialNumbersText;
+                    }
+                }
             }
 
             return documents;
         }
 
+        private Dictionary<string, string> LoadDocumentSerialNumbers(SqlConnection connection, bool loadClosedDocumentsForCurrentYear, DateTime currentYearStart, DateTime nextYearStart)
+        {
+            var sql = @"
+WITH filteredDocuments AS
+(
+    SELECT m.NNZVPV
+    FROM dbo.EKZMK m
+    WHERE NULLIF(LTRIM(RTRIM(m.NNZVPV)), N'') IS NOT NULL
+    GROUP BY m.NNZVPV
+    HAVING " + (loadClosedDocumentsForCurrentYear
+                        ? "MAX(m.DTVDM) >= @IssuedFrom AND MAX(m.DTVDM) < @IssuedTo"
+                        : "MAX(m.DTVDM) IS NULL") + @"
+)
+SELECT
+    m.NNZVPV AS DocumentNumber,
+    z.NNZV AS SerialNumber
+FROM dbo.EKZMK m
+JOIN filteredDocuments documents ON documents.NNZVPV = m.NNZVPV
+JOIN dbo.EKZ z ON z.IDEKZ = m.IDEKZ
+WHERE NULLIF(LTRIM(RTRIM(z.NNZV)), N'') IS NOT NULL
+ORDER BY m.NNZVPV, z.NNZV;";
+
+            var serialNumbersByDocument = new Dictionary<string, SortedSet<string>>(StringComparer.OrdinalIgnoreCase);
+
+            using (var command = new SqlCommand(sql, connection))
+            {
+                command.CommandTimeout = 60;
+
+                if (loadClosedDocumentsForCurrentYear)
+                {
+                    command.Parameters.Add("@IssuedFrom", SqlDbType.DateTime).Value = currentYearStart;
+                    command.Parameters.Add("@IssuedTo", SqlDbType.DateTime).Value = nextYearStart;
+                }
+
+                using (var reader = command.ExecuteReader())
+                {
+                    while (reader.Read())
+                    {
+                        var documentNumber = GetString(reader, "DocumentNumber");
+                        var serialNumber = GetString(reader, "SerialNumber");
+                        if (string.IsNullOrWhiteSpace(documentNumber) || string.IsNullOrWhiteSpace(serialNumber))
+                        {
+                            continue;
+                        }
+
+                        SortedSet<string> serialNumbers;
+                        if (!serialNumbersByDocument.TryGetValue(documentNumber, out serialNumbers))
+                        {
+                            serialNumbers = new SortedSet<string>(StringComparer.OrdinalIgnoreCase);
+                            serialNumbersByDocument[documentNumber] = serialNumbers;
+                        }
+
+                        serialNumbers.Add(serialNumber.Trim());
+                    }
+                }
+            }
+
+            return serialNumbersByDocument.ToDictionary(
+                delegate(KeyValuePair<string, SortedSet<string>> pair) { return pair.Key; },
+                delegate(KeyValuePair<string, SortedSet<string>> pair) { return string.Join(", ", pair.Value); },
+                StringComparer.OrdinalIgnoreCase);
+        }
+
         public IReadOnlyList<PsvDocumentLine> LoadDocumentLines(string documentNumber)
         {
             const string sql = @"
@@ -1277,6 +1361,123 @@ ORDER BY names.NMTP, tips.TP, sizeInfo.DPZN, sizeInfo.NNGSRS;";
             }
         }
 
+        public Task<IReadOnlyList<CustomerReference>> LoadCustomersAsync(CancellationToken cancellationToken = default(CancellationToken))
+        {
+            return Task.Run<IReadOnlyList<CustomerReference>>(delegate
+            {
+                cancellationToken.ThrowIfCancellationRequested();
+                return LoadCustomers();
+            }, cancellationToken);
+        }
+
+        public Task<IReadOnlyList<PersonReference>> LoadVerifiersAsync(CancellationToken cancellationToken = default(CancellationToken))
+        {
+            return Task.Run<IReadOnlyList<PersonReference>>(delegate
+            {
+                cancellationToken.ThrowIfCancellationRequested();
+                return LoadVerifiers();
+            }, cancellationToken);
+        }
+
+        public Task<IReadOnlyList<DocumentFormReference>> LoadVerificationDocumentFormsAsync(bool isPassed, CancellationToken cancellationToken = default(CancellationToken))
+        {
+            return Task.Run<IReadOnlyList<DocumentFormReference>>(delegate
+            {
+                cancellationToken.ThrowIfCancellationRequested();
+                return LoadVerificationDocumentForms(isPassed);
+            }, cancellationToken);
+        }
+
+        public Task<IReadOnlyList<PsvDocumentSummary>> LoadDocumentsAsync(bool loadClosedDocumentsForCurrentYear, CancellationToken cancellationToken = default(CancellationToken))
+        {
+            return Task.Run<IReadOnlyList<PsvDocumentSummary>>(delegate
+            {
+                cancellationToken.ThrowIfCancellationRequested();
+                return LoadDocuments(loadClosedDocumentsForCurrentYear);
+            }, cancellationToken);
+        }
+
+        public Task<IReadOnlyList<PsvDocumentLine>> LoadDocumentLinesAsync(string documentNumber, CancellationToken cancellationToken = default(CancellationToken))
+        {
+            return Task.Run<IReadOnlyList<PsvDocumentLine>>(delegate
+            {
+                cancellationToken.ThrowIfCancellationRequested();
+                return LoadDocumentLines(documentNumber);
+            }, cancellationToken);
+        }
+
+        public Task<IReadOnlyList<AvailableInstrumentItem>> LoadCustomerInstrumentsAsync(int customerId, CancellationToken cancellationToken = default(CancellationToken))
+        {
+            return Task.Run<IReadOnlyList<AvailableInstrumentItem>>(delegate
+            {
+                cancellationToken.ThrowIfCancellationRequested();
+                return LoadCustomerInstruments(customerId);
+            }, cancellationToken);
+        }
+
+        public Task<IReadOnlyList<AvailableInstrumentItem>> LoadInstrumentTypesAsync(CancellationToken cancellationToken = default(CancellationToken))
+        {
+            return Task.Run<IReadOnlyList<AvailableInstrumentItem>>(delegate
+            {
+                cancellationToken.ThrowIfCancellationRequested();
+                return LoadInstrumentTypes();
+            }, cancellationToken);
+        }
+
+        public Task ResetLineVerificationAsync(int cardId, CancellationToken cancellationToken = default(CancellationToken))
+        {
+            return Task.Run(delegate
+            {
+                cancellationToken.ThrowIfCancellationRequested();
+                ResetLineVerification(cardId);
+            }, cancellationToken);
+        }
+
+        public Task SaveLineVerificationAsync(int cardId, VerificationEditResult result, CancellationToken cancellationToken = default(CancellationToken))
+        {
+            return Task.Run(delegate
+            {
+                cancellationToken.ThrowIfCancellationRequested();
+                SaveLineVerification(cardId, result);
+            }, cancellationToken);
+        }
+
+        public Task ResetLineVerificationAsync(IEnumerable<int> cardIds, CancellationToken cancellationToken = default(CancellationToken))
+        {
+            return Task.Run(delegate
+            {
+                cancellationToken.ThrowIfCancellationRequested();
+                ResetLineVerification(cardIds);
+            }, cancellationToken);
+        }
+
+        public Task SaveLineVerificationAsync(IEnumerable<int> cardIds, VerificationEditResult result, CancellationToken cancellationToken = default(CancellationToken))
+        {
+            return Task.Run(delegate
+            {
+                cancellationToken.ThrowIfCancellationRequested();
+                SaveLineVerification(cardIds, result);
+            }, cancellationToken);
+        }
+
+        public Task<DocumentDeleteResult> DeleteDocumentAsync(string documentNumber, CancellationToken cancellationToken = default(CancellationToken))
+        {
+            return Task.Run(delegate
+            {
+                cancellationToken.ThrowIfCancellationRequested();
+                return DeleteDocument(documentNumber);
+            }, cancellationToken);
+        }
+
+        public Task<DocumentGroupDeleteResult> DeleteDocumentGroupsAsync(string documentNumber, IEnumerable<int> cardIds, CancellationToken cancellationToken = default(CancellationToken))
+        {
+            return Task.Run(delegate
+            {
+                cancellationToken.ThrowIfCancellationRequested();
+                return DeleteDocumentGroups(documentNumber, cardIds);
+            }, cancellationToken);
+        }
+
         private static string GetPendingLineSaveKey(PsvDocumentLine line)
         {
             if (line == null)
diff --git a/XLAB/PsvModels.cs b/XLAB/PsvModels.cs
index e0a431a..99e02a5 100644
--- a/XLAB/PsvModels.cs
+++ b/XLAB/PsvModels.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 
 namespace XLAB
 {
@@ -40,6 +40,7 @@ namespace XLAB
         private DateTime? _issuedOn;
         private int _itemCount;
         private int _passedCount;
+        private string _serialNumbersText;
 
         public DateTime? AcceptedOn
         {
@@ -89,6 +90,12 @@ namespace XLAB
             set { SetProperty(ref _documentNumber, value); }
         }
 
+        public string SerialNumbersText
+        {
+            get { return _serialNumbersText; }
+            set { SetProperty(ref _serialNumbersText, value); }
+        }
+
         public int FailedCount
         {
             get { return _failedCount; }
@@ -346,6 +353,8 @@ namespace XLAB
 
         public string RegistryNumber { get; set; }
 
+        public string SerialNumbersText { get; set; }
+
         public int InVerificationCount { get; set; }
 
         public int VerifiedCount { get; set; }
diff --git a/XLAB/ReferenceDirectorySqlHelpers.cs b/XLAB/ReferenceDirectorySqlHelpers.cs
index 1c9810f..e103df9 100644
--- a/XLAB/ReferenceDirectorySqlHelpers.cs
+++ b/XLAB/ReferenceDirectorySqlHelpers.cs
@@ -27,6 +27,11 @@ namespace XLAB
             return new SqlConnection(connectionString.ConnectionString);
         }
 
+        public static int GetCommandTimeoutSeconds()
+        {
+            return 60;
+        }
+
         public static IReadOnlyList<DirectoryLookupItem> LoadLookupItems(string sql)
         {
             var items = new List<DirectoryLookupItem>();
@@ -35,7 +40,7 @@ namespace XLAB
             using (var command = new SqlCommand(sql, connection))
             {
                 connection.Open();
-                command.CommandTimeout = 60;
+                command.CommandTimeout = GetCommandTimeoutSeconds();
 
                 using (var reader = command.ExecuteReader())
                 {
@@ -54,9 +59,14 @@ namespace XLAB
         }
 
         public static List<DeleteBlockerInfo> LoadDeleteBlockersFromForeignKeys(SqlConnection connection, string parentTableName, int id, IEnumerable<string> excludedChildTables = null)
+        {
+            return LoadDeleteBlockersFromForeignKeys(connection, null, parentTableName, id, excludedChildTables);
+        }
+
+        public static List<DeleteBlockerInfo> LoadDeleteBlockersFromForeignKeys(SqlConnection connection, SqlTransaction transaction, string parentTableName, int id, IEnumerable<string> excludedChildTables = null)
         {
             var excluded = new HashSet<string>(excludedChildTables ?? Enumerable.Empty<string>(), StringComparer.OrdinalIgnoreCase);
-            var metadata = LoadForeignKeyMetadata(connection, parentTableName)
+            var metadata = LoadForeignKeyMetadata(connection, transaction, parentTableName)
                 .Where(delegate(ForeignKeyMetadata item) { return !excluded.Contains(item.TableName); })
                 .GroupBy(delegate(ForeignKeyMetadata item) { return item.SchemaName + "." + item.TableName; })
                 .Select(delegate(IGrouping<string, ForeignKeyMetadata> group)
@@ -86,7 +96,8 @@ namespace XLAB
 
                 using (var command = new SqlCommand(sql, connection))
                 {
-                    command.CommandTimeout = 60;
+                    command.Transaction = transaction;
+                    command.CommandTimeout = GetCommandTimeoutSeconds();
                     command.Parameters.Add("@Id", SqlDbType.Int).Value = id;
                     var rowCount = Convert.ToInt32(command.ExecuteScalar());
                     if (rowCount > 0)
@@ -183,7 +194,7 @@ namespace XLAB
             command.Parameters.Add(name, SqlDbType.VarChar, -1).Value = (object)value ?? DBNull.Value;
         }
 
-        private static IReadOnlyList<ForeignKeyMetadata> LoadForeignKeyMetadata(SqlConnection connection, string parentTableName)
+        private static IReadOnlyList<ForeignKeyMetadata> LoadForeignKeyMetadata(SqlConnection connection, SqlTransaction transaction, string parentTableName)
         {
             const string sql = @"
 SELECT
@@ -200,7 +211,8 @@ ORDER BY TableName, ColumnName;";
 
             using (var command = new SqlCommand(sql, connection))
             {
-                command.CommandTimeout = 60;
+                command.Transaction = transaction;
+                command.CommandTimeout = GetCommandTimeoutSeconds();
                 command.Parameters.Add("@ParentTableName", SqlDbType.VarChar, 128).Value = parentTableName;
 
                 using (var reader = command.ExecuteReader())
diff --git a/XLAB/VerificationReportsModels.cs b/XLAB/VerificationReportsModels.cs
new file mode 100644
index 0000000..df4cc41
--- /dev/null
+++ b/XLAB/VerificationReportsModels.cs
@@ -0,0 +1,79 @@
+using System;
+using System.Collections.Generic;
+
+namespace XLAB
+{
+    internal sealed class VerificationReportFilter
+    {
+        public int? CustomerId { get; set; }
+
+        public int? MeasurementAreaId { get; set; }
+
+        public DateTime? DateFrom { get; set; }
+
+        public DateTime? DateTo { get; set; }
+    }
+
+    internal sealed class VerificationReportSummary
+    {
+        public int TotalCount { get; set; }
+
+        public int GoodCount { get; set; }
+
+        public int RejectedCount { get; set; }
+
+        public int WithoutResultCount { get; set; }
+
+        public int IssuedCount { get; set; }
+    }
+
+    internal sealed class VerificationReportCustomerRow
+    {
+        public int? CustomerId { get; set; }
+
+        public string CustomerName { get; set; }
+
+        public int TotalCount { get; set; }
+
+        public int GoodCount { get; set; }
+
+        public int RejectedCount { get; set; }
+
+        public int WithoutResultCount { get; set; }
+
+        public int IssuedCount { get; set; }
+    }
+
+    internal sealed class VerificationReportMeasurementAreaRow
+    {
+        public int? MeasurementAreaId { get; set; }
+
+        public string MeasurementAreaName { get; set; }
+
+        public int TotalCount { get; set; }
+
+        public int GoodCount { get; set; }
+
+        public int RejectedCount { get; set; }
+
+        public int WithoutResultCount { get; set; }
+
+        public int IssuedCount { get; set; }
+    }
+
+    internal sealed class VerificationReportData
+    {
+        public VerificationReportData()
+        {
+            Summary = new VerificationReportSummary();
+            CustomerRows = Array.Empty<VerificationReportCustomerRow>();
+            MeasurementAreaRows = Array.Empty<VerificationReportMeasurementAreaRow>();
+        }
+
+        public VerificationReportSummary Summary { get; set; }
+
+        public IReadOnlyList<VerificationReportCustomerRow> CustomerRows { get; set; }
+
+        public IReadOnlyList<VerificationReportMeasurementAreaRow> MeasurementAreaRows { get; set; }
+    }
+}
diff --git a/XLAB/VerificationReportsService.cs b/XLAB/VerificationReportsService.cs
new file mode 100644
index 0000000..01caa5f
--- /dev/null
+++ b/XLAB/VerificationReportsService.cs
@@ -0,0 +1,228 @@
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.Data.SqlClient;
+
+namespace XLAB
+{
+    internal sealed class VerificationReportsService
+    {
+        private const string ReportSourceSql = @"
+FROM dbo.EKZMK m
+JOIN dbo.EKZ z ON z.IDEKZ = m.IDEKZ
+LEFT JOIN dbo.TPRZ tprz ON tprz.IDTPRZ = z.IDTPRZ
+LEFT JOIN dbo.TIPS tips ON tips.IDTIPS = tprz.IDTIPS
+LEFT JOIN dbo.SPOI areas ON areas.IDSPOI = tips.IDSPOI
+LEFT JOIN dbo.FRPD customers ON customers.IDFRPD = z.IDFRPDV
+WHERE m.DTMKFK IS NOT NULL
+  AND (@DateFrom IS NULL OR m.DTMKFK >= @DateFrom)
+  AND (@DateToExclusive IS NULL OR m.DTMKFK < @DateToExclusive)
+  AND (@CustomerId IS NULL OR z.IDFRPDV = @CustomerId)
+  AND (@MeasurementAreaId IS NULL OR tips.IDSPOI = @MeasurementAreaId)";
+
+        public VerificationReportData LoadReport(VerificationReportFilter filter)
+        {
+            var normalizedFilter = NormalizeFilter(filter);
+
+            using (var connection = ReferenceDirectorySqlHelpers.CreateConnection())
+            {
+                connection.Open();
+
+                return new VerificationReportData
+                {
+                    Summary = LoadSummary(connection, normalizedFilter),
+                    CustomerRows = LoadCustomerRows(connection, normalizedFilter),
+                    MeasurementAreaRows = LoadMeasurementAreaRows(connection, normalizedFilter)
+                };
+            }
+        }
+
+        public IReadOnlyList<DirectoryLookupItem> LoadCustomerItems()
+        {
+            return ReferenceDirectorySqlHelpers.LoadLookupItems(@"
+SELECT DISTINCT
+    customers.IDFRPD AS Id,
+    customers.NMFRPD AS Name
+FROM dbo.EKZMK m
+JOIN dbo.EKZ z ON z.IDEKZ = m.IDEKZ
+JOIN dbo.FRPD customers ON customers.IDFRPD = z.IDFRPDV
+WHERE m.DTMKFK IS NOT NULL
+  AND NULLIF(LTRIM(RTRIM(customers.NMFRPD)), N'') IS NOT NULL
+ORDER BY customers.NMFRPD, customers.IDFRPD;");
+        }
+
+        public IReadOnlyList<DirectoryLookupItem> LoadMeasurementAreaItems()
+        {
+            return ReferenceDirectorySqlHelpers.LoadLookupItems(@"
+SELECT DISTINCT
+    areas.IDSPOI AS Id,
+    areas.NMOI AS Name
+FROM dbo.EKZMK m
+JOIN dbo.EKZ z ON z.IDEKZ = m.IDEKZ
+LEFT JOIN dbo.TPRZ tprz ON tprz.IDTPRZ = z.IDTPRZ
+LEFT JOIN dbo.TIPS tips ON tips.IDTIPS = tprz.IDTIPS
+JOIN dbo.SPOI areas ON areas.IDSPOI = tips.IDSPOI
+WHERE m.DTMKFK IS NOT NULL
+  AND NULLIF(LTRIM(RTRIM(areas.NMOI)), N'') IS NOT NULL
+ORDER BY areas.NMOI, areas.IDSPOI;");
+        }
+
+        private static void AddFilterParameters(SqlCommand command, VerificationReportFilter filter)
+        {
+            command.CommandTimeout = ReferenceDirectorySqlHelpers.GetCommandTimeoutSeconds();
+            ReferenceDirectorySqlHelpers.AddNullableIntParameter(command, "@CustomerId", filter.CustomerId);
+            ReferenceDirectorySqlHelpers.AddNullableIntParameter(command, "@MeasurementAreaId", filter.MeasurementAreaId);
+            ReferenceDirectorySqlHelpers.AddNullableDateTimeParameter(command, "@DateFrom", filter.DateFrom);
+            ReferenceDirectorySqlHelpers.AddNullableDateTimeParameter(command, "@DateToExclusive", GetDateToExclusive(filter.DateTo));
+        }
+
+        private static DateTime? GetDateToExclusive(DateTime? dateTo)
+        {
+            return dateTo.HasValue ? dateTo.Value.Date.AddDays(1) : (DateTime?)null;
+        }
+
+        private static VerificationReportSummary LoadSummary(SqlConnection connection, VerificationReportFilter filter)
+        {
+            var sql = @"
+SELECT
+    COUNT(*) AS TotalCount,
+    COALESCE(SUM(CASE WHEN m.GDN = 1 THEN 1 ELSE 0 END), 0) AS GoodCount,
+    COALESCE(SUM(CASE WHEN m.GDN = 0 THEN 1 ELSE 0 END), 0) AS RejectedCount,
+    COALESCE(SUM(CASE WHEN m.GDN IS NULL THEN 1 ELSE 0 END), 0) AS WithoutResultCount,
+    COALESCE(SUM(CASE WHEN m.DTVDM IS NOT NULL THEN 1 ELSE 0 END), 0) AS IssuedCount
+" + ReportSourceSql + ";";
+
+            using (var command = new SqlCommand(sql, connection))
+            {
+                AddFilterParameters(command, filter);
+
+                using (var reader = command.ExecuteReader())
+                {
+                    if (!reader.Read())
+                    {
+                        return new VerificationReportSummary();
+                    }
+
+                    return new VerificationReportSummary
+                    {
+                        TotalCount = ReferenceDirectorySqlHelpers.GetInt32(reader, "TotalCount"),
+                        GoodCount = ReferenceDirectorySqlHelpers.GetInt32(reader, "GoodCount"),
+                        RejectedCount = ReferenceDirectorySqlHelpers.GetInt32(reader, "RejectedCount"),
+                        WithoutResultCount = ReferenceDirectorySqlHelpers.GetInt32(reader, "WithoutResultCount"),
+                        IssuedCount = ReferenceDirectorySqlHelpers.GetInt32(reader, "IssuedCount")
+                    };
+                }
+            }
+        }
+
+        private static IReadOnlyList<VerificationReportCustomerRow> LoadCustomerRows(SqlConnection connection, VerificationReportFilter filter)
+        {
+            var sql = @"
+SELECT
+    z.IDFRPDV AS CustomerId,
+    COALESCE(NULLIF(LTRIM(RTRIM(customers.NMFRPD)), N''), N'Не указано') AS CustomerName,
+    COUNT(*) AS TotalCount,
+    COALESCE(SUM(CASE WHEN m.GDN = 1 THEN 1 ELSE 0 END), 0) AS GoodCount,
+    COALESCE(SUM(CASE WHEN m.GDN = 0 THEN 1 ELSE 0 END), 0) AS RejectedCount,
+    COALESCE(SUM(CASE WHEN m.GDN IS NULL THEN 1 ELSE 0 END), 0) AS WithoutResultCount,
+    COALESCE(SUM(CASE WHEN m.DTVDM IS NOT NULL THEN 1 ELSE 0 END), 0) AS IssuedCount
+" + ReportSourceSql + @"
+GROUP BY
+    z.IDFRPDV,
+    COALESCE(NULLIF(LTRIM(RTRIM(customers.NMFRPD)), N''), N'Не указано')
+ORDER BY
+    CustomerName;";
+
+            var rows = new List<VerificationReportCustomerRow>();
+
+            using (var command = new SqlCommand(sql, connection))
+            {
+                AddFilterParameters(command, filter);
+
+                using (var reader = command.ExecuteReader())
+                {
+                    while (reader.Read())
+                    {
+                        rows.Add(new VerificationReportCustomerRow
+                        {
+                            CustomerId = ReferenceDirectorySqlHelpers.GetNullableInt32(reader, "CustomerId"),
+                            CustomerName = ReferenceDirectorySqlHelpers.GetString(reader, "CustomerName"),
+                            TotalCount = ReferenceDirectorySqlHelpers.GetInt32(reader, "TotalCount"),
+                            GoodCount = ReferenceDirectorySqlHelpers.GetInt32(reader, "GoodCount"),
+                            RejectedCount = ReferenceDirectorySqlHelpers.GetInt32(reader, "RejectedCount"),
+                            WithoutResultCount = ReferenceDirectorySqlHelpers.GetInt32(reader, "WithoutResultCount"),
+                            IssuedCount = ReferenceDirectorySqlHelpers.GetInt32(reader, "IssuedCount")
+                        });
+                    }
+                }
+            }
+
+            return rows;
+        }
+
+        private static IReadOnlyList<VerificationReportMeasurementAreaRow> LoadMeasurementAreaRows(SqlConnection connection, VerificationReportFilter filter)
+        {
+            var sql = @"
+SELECT
+    tips.IDSPOI AS MeasurementAreaId,
+    COALESCE(NULLIF(LTRIM(RTRIM(areas.NMOI)), N''), N'Не указано') AS MeasurementAreaName,
+    COUNT(*) AS TotalCount,
+    COALESCE(SUM(CASE WHEN m.GDN = 1 THEN 1 ELSE 0 END), 0) AS GoodCount,
+    COALESCE(SUM(CASE WHEN m.GDN = 0 THEN 1 ELSE 0 END), 0) AS RejectedCount,
+    COALESCE(SUM(CASE WHEN m.GDN IS NULL THEN 1 ELSE 0 END), 0) AS WithoutResultCount,
+    COALESCE(SUM(CASE WHEN m.DTVDM IS NOT NULL THEN 1 ELSE 0 END), 0) AS IssuedCount
+" + ReportSourceSql + @"
+GROUP BY
+    tips.IDSPOI,
+    COALESCE(NULLIF(LTRIM(RTRIM(areas.NMOI)), N''), N'Не указано')
+ORDER BY
+    MeasurementAreaName;";
+
+            var rows = new List<VerificationReportMeasurementAreaRow>();
+
+            using (var command = new SqlCommand(sql, connection))
+            {
+                AddFilterParameters(command, filter);
+
+                using (var reader = command.ExecuteReader())
+                {
+                    while (reader.Read())
+                    {
+                        rows.Add(new VerificationReportMeasurementAreaRow
+                        {
+                            MeasurementAreaId = ReferenceDirectorySqlHelpers.GetNullableInt32(reader, "MeasurementAreaId"),
+                            MeasurementAreaName = ReferenceDirectorySqlHelpers.GetString(reader, "MeasurementAreaName"),
+                            TotalCount = ReferenceDirectorySqlHelpers.GetInt32(reader, "TotalCount"),
+                            GoodCount = ReferenceDirectorySqlHelpers.GetInt32(reader, "GoodCount"),
+                            RejectedCount = ReferenceDirectorySqlHelpers.GetInt32(reader, "RejectedCount"),
+                            WithoutResultCount = ReferenceDirectorySqlHelpers.GetInt32(reader, "WithoutResultCount"),
+                            IssuedCount = ReferenceDirectorySqlHelpers.GetInt32(reader, "IssuedCount")
+                        });
+                    }
+                }
+            }
+
+            return rows;
+        }
+
+        private static VerificationReportFilter NormalizeFilter(VerificationReportFilter filter)
+        {
+            var normalizedFilter = filter ?? new VerificationReportFilter();
+            var dateFrom = normalizedFilter.DateFrom.HasValue ? normalizedFilter.DateFrom.Value.Date : (DateTime?)null;
+            var dateTo = normalizedFilter.DateTo.HasValue ? normalizedFilter.DateTo.Value.Date : (DateTime?)null;
+
+            if (dateFrom.HasValue && dateTo.HasValue && dateFrom.Value > dateTo.Value)
+            {
+                throw new InvalidOperationException("Дата \"с\" не может быть позже даты \"по\".");
+            }
+
+            return new VerificationReportFilter
+            {
+                CustomerId = normalizedFilter.CustomerId,
+                MeasurementAreaId = normalizedFilter.MeasurementAreaId,
+                DateFrom = dateFrom,
+                DateTo = dateTo
+            };
+        }
+    }
+}
diff --git a/XLAB/VerificationReportsWindow.xaml b/XLAB/VerificationReportsWindow.xaml
new file mode 100644
index 0000000..3bacb50
--- /dev/null
+++ b/XLAB/VerificationReportsWindow.xaml
@@ -0,0 +1,238 @@
+<Window x:Class="XLAB.VerificationReportsWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        Title="Отчеты"
+        Height="760"
+        Width="1280"
+        MinHeight="640"
+        MinWidth="1100"
+        Loaded="Window_Loaded"
+        WindowStartupLocation="CenterOwner">
+    <Grid Margin="12">
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="*" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+        </Grid.RowDefinitions>
+
+        <GroupBox Grid.Row="0"
+                  Header="Параметры отчета">
+            <Grid Margin="8">
+                <DockPanel LastChildFill="False">
+                    <Button DockPanel.Dock="Right"
+                            Width="130"
+                            Margin="12,0,0,0"
+                            Command="{Binding RefreshCommand}"
+                            Content="Сформировать" />
+                    <WrapPanel>
+                        <StackPanel Margin="0,0,16,8">
+                            <TextBlock Margin="0,0,0,4"
+                                       Text="Заказчик" />
+                            <ComboBox Width="280"
+                                      ItemsSource="{Binding CustomerItems}"
+                                      SelectedValue="{Binding SelectedCustomerId}"
+                                      SelectedValuePath="Id"
+                                      DisplayMemberPath="Name"
+                                      IsTextSearchEnabled="True" />
+                        </StackPanel>
+
+                        <StackPanel Margin="0,0,16,8">
+                            <TextBlock Margin="0,0,0,4"
+                                       Text="Область измерений" />
+                            <ComboBox Width="280"
+                                      ItemsSource="{Binding MeasurementAreaItems}"
+                                      SelectedValue="{Binding SelectedMeasurementAreaId}"
+                                      SelectedValuePath="Id"
+                                      DisplayMemberPath="Name"
+                                      IsTextSearchEnabled="True" />
+                        </StackPanel>
+
+                        <StackPanel Margin="0,0,16,8">
+                            <TextBlock Margin="0,0,0,4"
+                                       Text="Дата поверки с" />
+                            <DatePicker Width="145"
+                                        SelectedDate="{Binding DateFrom, Mode=TwoWay}"
+                                        SelectedDateFormat="Short" />
+                        </StackPanel>
+
+                        <StackPanel Margin="0,0,0,8">
+                            <TextBlock Margin="0,0,0,4"
+                                       Text="Дата поверки по" />
+                            <DatePicker Width="145"
+                                        SelectedDate="{Binding DateTo, Mode=TwoWay}"
+                                        SelectedDateFormat="Short" />
+                        </StackPanel>
+                    </WrapPanel>
+                </DockPanel>
+            </Grid>
+        </GroupBox>
+
+        <GroupBox Grid.Row="1"
+                  Margin="0,12,0,0"
+                  Header="Итоги">
+            <Grid Margin="8">
+                <Grid.RowDefinitions>
+                    <RowDefinition Height="Auto" />
+                    <RowDefinition Height="Auto" />
+                </Grid.RowDefinitions>
+
+                <TextBlock Grid.Row="0"
+                           Margin="0,0,0,8"
+                           Foreground="DimGray"
+                           Text="{Binding PeriodText}" />
+
+                <UniformGrid Grid.Row="1"
+                             Columns="5">
+                    <Border Margin="0,0,8,0"
+                            Padding="12,8"
+                            Background="{StaticResource AppSurfaceBrush}"
+                            BorderBrush="{StaticResource AppBorderBrush}"
+                            BorderThickness="1">
+                        <StackPanel>
+                            <TextBlock Foreground="DimGray"
+                                       Text="Поверено" />
+                            <TextBlock FontSize="24"
+                                       FontWeight="SemiBold"
+                                       Text="{Binding Summary.TotalCount}" />
+                        </StackPanel>
+                    </Border>
+
+                    <Border Margin="0,0,8,0"
+                            Padding="12,8"
+                            Background="{StaticResource AppSurfaceBrush}"
+                            BorderBrush="{StaticResource AppBorderBrush}"
+                            BorderThickness="1">
+                        <StackPanel>
+                            <TextBlock Foreground="DimGray"
+                                       Text="Годен" />
+                            <TextBlock FontSize="24"
+                                       FontWeight="SemiBold"
+                                       Text="{Binding Summary.GoodCount}" />
+                        </StackPanel>
+                    </Border>
+
+                    <Border Margin="0,0,8,0"
+                            Padding="12,8"
+                            Background="{StaticResource AppSurfaceBrush}"
+                            BorderBrush="{StaticResource AppBorderBrush}"
+                            BorderThickness="1">
+                        <StackPanel>
+                            <TextBlock Foreground="DimGray"
+                                       Text="Забракован" />
+                            <TextBlock FontSize="24"
+                                       FontWeight="SemiBold"
+                                       Text="{Binding Summary.RejectedCount}" />
+                        </StackPanel>
+                    </Border>
+
+                    <Border Margin="0,0,8,0"
+                            Padding="12,8"
+                            Background="{StaticResource AppSurfaceBrush}"
+                            BorderBrush="{StaticResource AppBorderBrush}"
+                            BorderThickness="1">
+                        <StackPanel>
+                            <TextBlock Foreground="DimGray"
+                                       Text="Без результата" />
+                            <TextBlock FontSize="24"
+                                       FontWeight="SemiBold"
+                                       Text="{Binding Summary.WithoutResultCount}" />
+                        </StackPanel>
+                    </Border>
+
+                    <Border Padding="12,8"
+                            Background="{StaticResource AppSurfaceBrush}"
+                            BorderBrush="{StaticResource AppBorderBrush}"
+                            BorderThickness="1">
+                        <StackPanel>
+                            <TextBlock Foreground="DimGray"
+                                       Text="С выдачей" />
+                            <TextBlock FontSize="24"
+                                       FontWeight="SemiBold"
+                                       Text="{Binding Summary.IssuedCount}" />
+                        </StackPanel>
+                    </Border>
+                </UniformGrid>
+            </Grid>
+        </GroupBox>
+
+        <GroupBox Grid.Row="2"
+                  Margin="0,12,0,0"
+                  Header="Сводные таблицы">
+            <TabControl Margin="8">
+                <TabItem Header="По заказчикам">
+                    <DataGrid ItemsSource="{Binding CustomerRows}"
+                              AutoGenerateColumns="False"
+                              CanUserAddRows="False"
+                              IsReadOnly="True"
+                              HeadersVisibility="Column">
+                        <DataGrid.Columns>
+                            <DataGridTextColumn Header="Заказчик"
+                                                Width="360"
+                                                Binding="{Binding CustomerName}" />
+                            <DataGridTextColumn Header="Поверено"
+                                                Width="110"
+                                                Binding="{Binding TotalCount}" />
+                            <DataGridTextColumn Header="Годен"
+                                                Width="110"
+                                                Binding="{Binding GoodCount}" />
+                            <DataGridTextColumn Header="Забракован"
+                                                Width="120"
+                                                Binding="{Binding RejectedCount}" />
+                            <DataGridTextColumn Header="Без результата"
+                                                Width="125"
+                                                Binding="{Binding WithoutResultCount}" />
+                            <DataGridTextColumn Header="С выдачей"
+                                                Width="110"
+                                                Binding="{Binding IssuedCount}" />
+                        </DataGrid.Columns>
+                    </DataGrid>
+                </TabItem>
+
+                <TabItem Header="По видам измерений">
+                    <DataGrid ItemsSource="{Binding MeasurementAreaRows}"
+                              AutoGenerateColumns="False"
+                              CanUserAddRows="False"
+                              IsReadOnly="True"
+                              HeadersVisibility="Column">
+                        <DataGrid.Columns>
+                            <DataGridTextColumn Header="Область измерений"
+                                                Width="360"
+                                                Binding="{Binding MeasurementAreaName}" />
+                            <DataGridTextColumn Header="Поверено"
+                                                Width="110"
+                                                Binding="{Binding TotalCount}" />
+                            <DataGridTextColumn Header="Годен"
+                                                Width="110"
+                                                Binding="{Binding GoodCount}" />
+                            <DataGridTextColumn Header="Забракован"
+                                                Width="120"
+                                                Binding="{Binding RejectedCount}" />
+                            <DataGridTextColumn Header="Без результата"
+                                                Width="125"
+                                                Binding="{Binding WithoutResultCount}" />
+                            <DataGridTextColumn Header="С выдачей"
+                                                Width="110"
+                                                Binding="{Binding IssuedCount}" />
+                        </DataGrid.Columns>
+                    </DataGrid>
+                </TabItem>
+            </TabControl>
+        </GroupBox>
+
+        <TextBlock Grid.Row="3"
+                   Margin="0,8,0,0"
+                   Foreground="DimGray"
+                   Text="{Binding StatusText}" />
+
+        <StackPanel Grid.Row="4"
+                    Margin="0,12,0,0"
+                    Orientation="Horizontal"
+                    HorizontalAlignment="Right">
+            <Button Width="90"
+                    IsCancel="True"
+                    Content="Закрыть" />
+        </StackPanel>
+    </Grid>
+</Window>
diff --git a/XLAB/VerificationReportsWindow.xaml.cs b/XLAB/VerificationReportsWindow.xaml.cs
new file mode 100644
index 0000000..da4604a
--- /dev/null
+++ b/XLAB/VerificationReportsWindow.xaml.cs
@@ -0,0 +1,21 @@
+using System.Windows;
+
+namespace XLAB
+{
+    public partial class VerificationReportsWindow : Window
+    {
+        private readonly VerificationReportsWindowViewModel _viewModel;
+
+        public VerificationReportsWindow()
+        {
+            InitializeComponent();
+            _viewModel = new VerificationReportsWindowViewModel(new VerificationReportsService(), new DialogService(this));
+            DataContext = _viewModel;
+        }
+
+        private async void Window_Loaded(object sender, RoutedEventArgs e)
+        {
+            await _viewModel.InitializeAsync();
+        }
+    }
+}
diff --git a/XLAB/VerificationReportsWindowViewModel.cs b/XLAB/VerificationReportsWindowViewModel.cs
new file mode 100644
index 0000000..df23692
--- /dev/null
+++ b/XLAB/VerificationReportsWindowViewModel.cs
@@ -0,0 +1,249 @@
+using System;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows.Input;
+
+namespace XLAB
+{
+    internal sealed class VerificationReportsWindowViewModel : ObservableObject
+    {
+        private readonly IDialogService _dialogService;
+        private readonly VerificationReportsService _service;
+        private DateTime? _dateFrom;
+        private DateTime? _dateTo;
+        private bool _isBusy;
+        private int _selectedCustomerId;
+        private int _selectedMeasurementAreaId;
+        private VerificationReportSummary _summary;
+        private string _statusText;
+
+        public VerificationReportsWindowViewModel(VerificationReportsService service, IDialogService dialogService)
+        {
+            _service = service;
+            _dialogService = dialogService;
+
+            CustomerItems = new ObservableCollection<DirectoryLookupItem>();
+            MeasurementAreaItems = new ObservableCollection<DirectoryLookupItem>();
+            CustomerRows = new ObservableCollection<VerificationReportCustomerRow>();
+            MeasurementAreaRows = new ObservableCollection<VerificationReportMeasurementAreaRow>();
+            Summary = new VerificationReportSummary();
+
+            CustomerItems.Add(new DirectoryLookupItem { Id = 0, Name = "Все заказчики" });
+            MeasurementAreaItems.Add(new DirectoryLookupItem { Id = 0, Name = "Все области измерений" });
+
+            RefreshCommand = new RelayCommand(delegate { RefreshAsync(); }, delegate { return !IsBusy; });
+
+            UpdateStatus();
+        }
+
+        public ObservableCollection<DirectoryLookupItem> CustomerItems { get; private set; }
+
+        public ObservableCollection<VerificationReportCustomerRow> CustomerRows { get; private set; }
+
+        public DateTime? DateFrom
+        {
+            get { return _dateFrom; }
+            set
+            {
+                if (SetProperty(ref _dateFrom, value))
+                {
+                    OnPropertyChanged("PeriodText");
+                }
+            }
+        }
+
+        public DateTime? DateTo
+        {
+            get { return _dateTo; }
+            set
+            {
+                if (SetProperty(ref _dateTo, value))
+                {
+                    OnPropertyChanged("PeriodText");
+                }
+            }
+        }
+
+        public bool IsBusy
+        {
+            get { return _isBusy; }
+            private set
+            {
+                if (SetProperty(ref _isBusy, value))
+                {
+                    ((RelayCommand)RefreshCommand).RaiseCanExecuteChanged();
+                }
+            }
+        }
+
+        public ObservableCollection<DirectoryLookupItem> MeasurementAreaItems { get; private set; }
+
+        public ObservableCollection<VerificationReportMeasurementAreaRow> MeasurementAreaRows { get; private set; }
+
+        public string PeriodText
+        {
+            get
+            {
+                if (!DateFrom.HasValue && !DateTo.HasValue)
+                {
+                    return "Период: все время.";
+                }
+
+                if (DateFrom.HasValue && DateTo.HasValue)
+                {
+                    return string.Format("Период: с {0:d} по {1:d}.", DateFrom.Value, DateTo.Value);
+                }
+
+                if (DateFrom.HasValue)
+                {
+                    return string.Format("Период: с {0:d}.", DateFrom.Value);
+                }
+
+                return string.Format("Период: по {0:d}.", DateTo.Value);
+            }
+        }
+
+        public ICommand RefreshCommand { get; private set; }
+
+        public int SelectedCustomerId
+        {
+            get { return _selectedCustomerId; }
+            set { SetProperty(ref _selectedCustomerId, value); }
+        }
+
+        public int SelectedMeasurementAreaId
+        {
+            get { return _selectedMeasurementAreaId; }
+            set { SetProperty(ref _selectedMeasurementAreaId, value); }
+        }
+
+        public string StatusText
+        {
+            get { return _statusText; }
+            private set { SetProperty(ref _statusText, value); }
+        }
+
+        public VerificationReportSummary Summary
+        {
+            get { return _summary; }
+            private set { SetProperty(ref _summary, value); }
+        }
+
+        public async Task InitializeAsync()
+        {
+            await ExecuteBusyOperationAsync(async delegate
+            {
+                await LoadFiltersAsync();
+                await RefreshCoreAsync();
+            });
+        }
+
+        private VerificationReportFilter BuildFilter()
+        {
+            if (DateFrom.HasValue && DateTo.HasValue && DateFrom.Value.Date > DateTo.Value.Date)
+            {
+                throw new InvalidOperationException("Дата \"с\" не может быть позже даты \"по\".");
+            }
+
+            return new VerificationReportFilter
+            {
+                CustomerId = SelectedCustomerId > 0 ? SelectedCustomerId : (int?)null,
+                MeasurementAreaId = SelectedMeasurementAreaId > 0 ? SelectedMeasurementAreaId : (int?)null,
+                DateFrom = DateFrom,
+                DateTo = DateTo
+            };
+        }
+
+        private async Task ExecuteBusyOperationAsync(Func<Task> operation)
+        {
+            try
+            {
+                IsBusy = true;
+                await operation();
+            }
+            catch (InvalidOperationException ex)
+            {
+                _dialogService.ShowWarning(ex.Message);
+            }
+            catch (Exception ex)
+            {
+                _dialogService.ShowError(ex.Message);
+            }
+            finally
+            {
+                IsBusy = false;
+            }
+        }
+
+        private async Task LoadFiltersAsync()
+        {
+            var customersTask = Task.Run(delegate { return _service.LoadCustomerItems(); });
+            var measurementAreasTask = Task.Run(delegate { return _service.LoadMeasurementAreaItems(); });
+
+            await Task.WhenAll(customersTask, measurementAreasTask);
+
+            ApplyLookupItems(CustomerItems, customersTask.Result, "Все заказчики");
+            ApplyLookupItems(MeasurementAreaItems, measurementAreasTask.Result, "Все области измерений");
+
+            if (!CustomerItems.Any(delegate(DirectoryLookupItem item) { return item.Id == SelectedCustomerId; }))
+            {
+                SelectedCustomerId = 0;
+            }
+
+            if (!MeasurementAreaItems.Any(delegate(DirectoryLookupItem item) { return item.Id == SelectedMeasurementAreaId; }))
+            {
+                SelectedMeasurementAreaId = 0;
+            }
+        }
+
+        private static void ApplyLookupItems(ObservableCollection<DirectoryLookupItem> target, System.Collections.Generic.IReadOnlyList<DirectoryLookupItem> source, string allItemText)
+        {
+            target.Clear();
+            target.Add(new DirectoryLookupItem { Id = 0, Name = allItemText });
+
+            foreach (var item in source)
+            {
+                target.Add(item);
+            }
+        }
+
+        private async Task RefreshCoreAsync()
+        {
+            var filter = BuildFilter();
+            var report = await Task.Run(delegate { return _service.LoadReport(filter); });
+
+            Summary = report.Summary ?? new VerificationReportSummary();
+
+            CustomerRows.Clear();
+            foreach (var row in report.CustomerRows ?? Array.Empty<VerificationReportCustomerRow>())
+            {
+                CustomerRows.Add(row);
+            }
+
+            MeasurementAreaRows.Clear();
+            foreach (var row in report.MeasurementAreaRows ?? Array.Empty<VerificationReportMeasurementAreaRow>())
+            {
+                MeasurementAreaRows.Add(row);
+            }
+
+            UpdateStatus();
+        }
+
+        private async void RefreshAsync()
+        {
+            await ExecuteBusyOperationAsync(RefreshCoreAsync);
+        }
+
+        private void UpdateStatus()
+        {
+            StatusText = string.Format(
+                "Заказчиков в своде: {0}. Видов измерений в своде: {1}. Поверено: {2}. Годен: {3}. Забракован: {4}.",
+                CustomerRows.Count,
+                MeasurementAreaRows.Count,
+                Summary == null ? 0 : Summary.TotalCount,
+                Summary == null ? 0 : Summary.GoodCount,
+                Summary == null ? 0 : Summary.RejectedCount);
+        }
+    }
+}
diff --git a/XLAB/XLAB.csproj b/XLAB/XLAB.csproj
index c597e1e..c204b95 100644
--- a/XLAB/XLAB.csproj
+++ b/XLAB/XLAB.csproj
@@ -78,9 +78,30 @@
     </Compile>
     <Compile Include="CloneVerificationWindowViewModel.cs" />
     <Compile Include="DialogService.cs" />
+    <Compile Include="EkzDirectoryDialogService.cs" />
+    <Compile Include="EkzDirectoryModels.cs" />
+    <Compile Include="EkzDirectoryService.cs" />
     <Compile Include="FrpdDirectoryDialogService.cs" />
     <Compile Include="FrpdDirectoryModels.cs" />
     <Compile Include="FrpdDirectoryService.cs" />
+    <Page Include="EkzDirectoryWindow.xaml">
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
+    </Page>
+    <Compile Include="EkzDirectoryWindow.xaml.cs">
+      <DependentUpon>EkzDirectoryWindow.xaml</DependentUpon>
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="EkzDirectoryWindowViewModel.cs" />
+    <Page Include="EkzEditWindow.xaml">
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
+    </Page>
+    <Compile Include="EkzEditWindow.xaml.cs">
+      <DependentUpon>EkzEditWindow.xaml</DependentUpon>
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="EkzEditWindowViewModel.cs" />
     <Page Include="MainWindow.xaml">
       <Generator>MSBuild:Compile</Generator>
       <SubType>Designer</SubType>
@@ -299,6 +320,17 @@
       <SubType>Code</SubType>
     </Compile>
     <Compile Include="VerificationEditWindowViewModel.cs" />
+    <Compile Include="VerificationReportsModels.cs" />
+    <Compile Include="VerificationReportsService.cs" />
+    <Page Include="VerificationReportsWindow.xaml">
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
+    </Page>
+    <Compile Include="VerificationReportsWindow.xaml.cs">
+      <DependentUpon>VerificationReportsWindow.xaml</DependentUpon>
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="VerificationReportsWindowViewModel.cs" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Properties\AssemblyInfo.cs">