{
  "dataset": "inzonex-industrial-insulation-conductivity-source-rows",
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      "checked_date": "2026-08-29",
      "verification_status": "PRIMARY_DECLARATION_CHECKED",
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    {
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      "test_method": "EN 12667",
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      "page_table_location": "Thermal conductivity table, T (C)",
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      "availability_caveat": "Confirm regional availability and exact ES variant; do not merge with older WM 960 curves",
      "source_access_status": "Primary source checked",
      "checked_date": "2026-08-29",
      "verification_status": "PRIMARY_DECLARATION_CHECKED",
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      "availability_caveat": "Current manufacturer page still links the 2018 sheet; confirm current regional stock and dimensions",
      "source_access_status": "Primary source checked",
      "checked_date": "2026-08-29",
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      "publication_status": "PUBLISHABLE"
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    {
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      "geography": "EN properties apply to European production facilities",
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      "source_access_status": "Primary source checked",
      "checked_date": "2026-08-29",
      "verification_status": "PRIMARY_SOURCE_CHECKED",
      "publication_status": "PUBLISHABLE"
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    {
      "material_class": "Stone wool",
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      "source_access_status": "Primary source checked",
      "checked_date": "2026-08-29",
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    {
      "material_class": "Stone wool",
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    {
      "material_class": "Stone wool",
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      "geography": "EN properties apply to European production facilities",
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      "source_access_status": "Primary source checked",
      "checked_date": "2026-08-29",
      "verification_status": "PRIMARY_SOURCE_CHECKED",
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    },
    {
      "material_class": "Stone wool",
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      "source_title_version_date": "PRODUCT DATA SHEET ENG - PDS 020/EN, issued 2018-04-01",
      "source_url": "https://rti.rockwool.com/siteassets/tools--documentation/products-industrial/product-data-sheets/english/rw-ti-pds-prorox-ps-970-en-UM.pdf",
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      "geography": "EN properties apply to European production facilities",
      "availability_caveat": "Current manufacturer page still links the 2018 sheet; confirm current regional stock and dimensions",
      "source_access_status": "Primary source checked",
      "checked_date": "2026-08-29",
      "verification_status": "PRIMARY_SOURCE_CHECKED",
      "publication_status": "PUBLISHABLE"
    },
    {
      "material_class": "Stone wool",
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      "conductivity_W_mK": "0.099",
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      "source_title_version_date": "PRODUCT DATA SHEET ENG - PDS 020/EN, issued 2018-04-01",
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      "checked_date": "2026-08-29",
      "verification_status": "PRIMARY_SOURCE_CHECKED",
      "publication_status": "PUBLISHABLE"
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    {
      "material_class": "Stone wool",
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      "conductivity_W_mK": "0.044",
      "value_basis": "MANUFACTURER_DECLARED_TABLE",
      "source_expression": "",
      "test_method": "EN 12667",
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      "source_title_version_date": "Technical Data Sheet Power-teK LM 450 ALU, valid from 2024-11",
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    },
    {
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      "source_title_version_date": "Technical Data Sheet Power-teK LM 450 ALU, valid from 2024-11",
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    },
    {
      "material_class": "Stone wool",
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      "test_method": "EN 12667",
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      "source_title_version_date": "Technical Data Sheet Power-teK LM 450 ALU, valid from 2024-11",
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      "source_access_status": "Primary source checked",
      "checked_date": "2026-08-29",
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    },
    {
      "material_class": "Stone wool",
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      "source_expression": "",
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    },
    {
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    {
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    },
    {
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      "source_access_status": "Primary source checked",
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    },
    {
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      "checked_date": "2026-08-29",
      "verification_status": "PRIMARY_DECLARATION_CHECKED",
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      "source_temp_degC": 10,
      "conductivity_W_mK": "0.033",
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      "source_expression": "",
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      "source_title_version_date": "U TECH Wired Mat MT 4.0 Alu1/V1/X TDS, imprint 2024-03",
      "source_url": "https://www.isover-technical-insulation.com/documents/technical-datasheets/tds-u-tech-wired-mat-mt-4.0-alu1v1x.pdf",
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      "availability_caveat": "Standard 600 mm width and 30-120 mm thickness require minimum quantities; regional stock not proven",
      "source_access_status": "Primary source checked",
      "checked_date": "2026-08-29",
      "verification_status": "PRIMARY_DECLARATION_CHECKED",
      "publication_status": "PUBLISHABLE"
    },
    {
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      "conductivity_W_mK": "0.037",
      "value_basis": "MANUFACTURER_DECLARED_TABLE",
      "source_expression": "",
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      "source_title_version_date": "U TECH Wired Mat MT 4.0 Alu1/V1/X TDS, imprint 2024-03",
      "source_url": "https://www.isover-technical-insulation.com/documents/technical-datasheets/tds-u-tech-wired-mat-mt-4.0-alu1v1x.pdf",
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      "verification_status": "PRIMARY_DECLARATION_CHECKED",
      "publication_status": "PUBLISHABLE"
    },
    {
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      "source_temp_degC": 100,
      "conductivity_W_mK": "0.045",
      "value_basis": "MANUFACTURER_DECLARED_TABLE",
      "source_expression": "",
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    {
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    },
    {
      "material_class": "Calcium silicate",
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      "source_expression": "",
      "test_method": "ASTM C518",
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