Standards

The standards that govern insulating liquids and their testing, with edition history, status and scope recorded from the publishers.

Edition timelineStandard Practices for Sampling Electrical Insulating Liquids: 2015, reapproved 2023 (current); Standard Specification for Mineral Insulating Liquid Used in Electrical Apparatus: 2016, editorial revision E01, 2024, 2025 (current); Standard Specification for Natural (Vegetable Oil) Ester Fluids Used in Electrical Apparatus: 2026; Standard Specification for Silicone Liquid Used for Electrical Insulation: 2020; Standard Test Method for Acid and Base Number by Color-Indicator Titration: 2022 (current); Standard Test Method for ASTM Color of Petroleum Products (ASTM Color Scale): 2012, reapproved 2017, 2024 (current); Standard Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using VDE Electrodes: 2012, reapproved 2019 (current); Standard Test Method for Dissipation Factor (or Power Factor) and Relative Permittivity (Dielectric Constant) of Electrical Insulating Liquids: 2015, 2023 (current); Standard Test Method for Interfacial Tension of Insulating Liquids Against Water by the Ring Method: 2020 (current); Standard Test Method for Visual Examination of Used Electrical Insulating Liquids in the Field: 2015, reapproved 2022 (current); Standard Test Method for Water in Insulating Liquids by Coulometric Karl Fischer Titration: 2020 (current)201520202025Standard Practices for Sampling Electrical Insulating LiquidsASTM D923-15(2023)Standard Practices for Sampling Electrical Insulating Liquids2015, reapproved 2023 (current edition)Standard Specification for Mineral Insulating Liquid Used in Electrical ApparatusASTM D3487-25Standard Specification for Mineral Insulating Liquid Used in Electrical Apparatus2016, editorial revision E01Standard Specification for Mineral Insulating Liquid Used in Electrical Apparatus2024Standard Specification for Mineral Insulating Liquid Used in Electrical Apparatus2025 (current edition)Standard Specification for Natural (Vegetable Oil) Ester Fluids Used in Electrical ApparatusASTM D6871-26Standard Specification for Natural (Vegetable Oil) Ester Fluids Used in Electrical Apparatus2026Standard Specification for Silicone Liquid Used for Electrical InsulationASTM D4652-20Standard Specification for Silicone Liquid Used for Electrical Insulation2020Standard Test Method for Acid and Base Number by Color-Indicator TitrationASTM D974-22Standard Test Method for Acid and Base Number by Color-Indicator Titration2022 (current edition)Standard Test Method for ASTM Color of Petroleum Products (ASTM Color Scale)ASTM D1500-24Standard Test Method for ASTM Color of Petroleum Products (ASTM Color Scale)2012, reapproved 2017Standard Test Method for ASTM Color of Petroleum Products (ASTM Color Scale)2024 (current edition)Standard Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using VDE ElectrodesASTM D1816-12(2019)Standard Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using VDE Electrodes2012, reapproved 2019 (current edition)Standard Test Method for Dissipation Factor (or Power Factor) and Relative Permittivity (Dielectric Constant) of Electrical Insulating LiquidsASTM D924-23Standard Test Method for Dissipation Factor (or Power Factor) and Relative Permittivity (Dielectric Constant) of Electrical Insulating Liquids2015Standard Test Method for Dissipation Factor (or Power Factor) and Relative Permittivity (Dielectric Constant) of Electrical Insulating Liquids2023 (current edition)Standard Test Method for Interfacial Tension of Insulating Liquids Against Water by the Ring MethodASTM D971-20Standard Test Method for Interfacial Tension of Insulating Liquids Against Water by the Ring Method2020 (current edition)Standard Test Method for Visual Examination of Used Electrical Insulating Liquids in the FieldASTM D1524-15(2022)Standard Test Method for Visual Examination of Used Electrical Insulating Liquids in the Field2015, reapproved 2022 (current edition)Standard Test Method for Water in Insulating Liquids by Coulometric Karl Fischer TitrationASTM D1533-20Standard Test Method for Water in Insulating Liquids by Coulometric Karl Fischer Titration2020 (current edition)
Edition timeline. Editions recorded for each standard, from the publishers' catalogs. The filled dot marks the edition the publisher lists as current.
Data table (17 rows)
Edition timeline: edition years from the publishers' catalogs; editions without a four-digit year are listed but not plotted.
StandardEditionKindCurrentRecord
Standard Practices for Sampling Electrical Insulating Liquids2015, reapproved 2023EditionYesstd.astm-d923.edition.2015
Standard Specification for Mineral Insulating Liquid Used in Electrical Apparatus2016, editorial revision E01Editionstd.astm-d3487.edition.2016
Standard Specification for Mineral Insulating Liquid Used in Electrical Apparatus2024Editionstd.astm-d3487.edition.2024
Standard Specification for Mineral Insulating Liquid Used in Electrical Apparatus2025EditionYesstd.astm-d3487.edition.2025
Standard Specification for Natural (Vegetable Oil) Ester Fluids Used in Electrical Apparatus2026Approvalstd.astm-d6871.approved
Standard Specification for Natural (Vegetable Oil) Ester Fluids Used in Electrical Apparatus2026Revision ofstd.astm-d6871.revision-of
Standard Specification for Silicone Liquid Used for Electrical Insulation2020Approvalstd.astm-d4652.approved
Standard Specification for Silicone Liquid Used for Electrical Insulation2020Revision ofstd.astm-d4652.revision-of
Standard Test Method for Acid and Base Number by Color-Indicator Titration2022EditionYesstd.astm-d974.edition.2022
Standard Test Method for ASTM Color of Petroleum Products (ASTM Color Scale)2012, reapproved 2017Editionstd.astm-d1500.edition.2012
Standard Test Method for ASTM Color of Petroleum Products (ASTM Color Scale)2024EditionYesstd.astm-d1500.edition.2024
Standard Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using VDE Electrodes2012, reapproved 2019EditionYesstd.astm-d1816.edition.2012
Standard Test Method for Dissipation Factor (or Power Factor) and Relative Permittivity (Dielectric Constant) of Electrical Insulating Liquids2015Editionstd.astm-d924.edition.2015
Standard Test Method for Dissipation Factor (or Power Factor) and Relative Permittivity (Dielectric Constant) of Electrical Insulating Liquids2023EditionYesstd.astm-d924.edition.2023
Standard Test Method for Interfacial Tension of Insulating Liquids Against Water by the Ring Method2020EditionYesstd.astm-d971.edition.2020
Standard Test Method for Visual Examination of Used Electrical Insulating Liquids in the Field2015, reapproved 2022EditionYesstd.astm-d1524.edition.2015
Standard Test Method for Water in Insulating Liquids by Coulometric Karl Fischer Titration2020EditionYesstd.astm-d1533.edition.2020
  1. Standard Practices for Sampling Electrical Insulating Liquids

    ASTM D923-15(2023) is the designation of the document titled Standard Practices for Sampling Electrical Insulating Liquids. Value: ASTM D923-15(2023).

  2. Standard Specification for Mineral Insulating Liquid Used in Electrical Apparatus

    ASTM D3487-25 is the designation of the document titled Standard Specification for Mineral Insulating Liquid Used in Electrical Apparatus. Value: ASTM D3487-25.

  3. Standard Specification for Natural (Vegetable Oil) Ester Fluids Used in Electrical Apparatus

    ASTM D6871-26 is the designation of the ASTM International specification for natural (vegetable oil) ester insulating fluids, the 2026 edition of ASTM D6871. Value: ASTM D6871-26.

  4. Standard Specification for Silicone Liquid Used for Electrical Insulation

    ASTM D4652-20 is the designation of the ASTM International specification for silicone liquid used for electrical insulation, the 2020 edition of ASTM D4652. Value: ASTM D4652-20.

  5. Standard Test Method for Acid and Base Number by Color-Indicator Titration

    ASTM D974-22 is the designation of the document titled Standard Test Method for Acid and Base Number by Color-Indicator Titration. Value: ASTM D974-22.

  6. Standard Test Method for ASTM Color of Petroleum Products (ASTM Color Scale)

    ASTM D1500-24 is the designation of the document titled Standard Test Method for ASTM Color of Petroleum Products (ASTM Color Scale). Value: ASTM D1500-24.

  7. Standard Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using VDE Electrodes

    ASTM D1816-12(2019) is the designation of the document titled Standard Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using VDE Electrodes. Value: ASTM D1816-12(2019).

  8. Standard Test Method for Dissipation Factor (or Power Factor) and Relative Permittivity (Dielectric Constant) of Electrical Insulating Liquids

    ASTM D924-23 is the designation of the document titled Standard Test Method for Dissipation Factor (or Power Factor) and Relative Permittivity (Dielectric Constant) of Electrical Insulating Liquids. Value: ASTM D924-23.

  9. Standard Test Method for Interfacial Tension of Insulating Liquids Against Water by the Ring Method

    ASTM D971-20 is the designation of the document titled Standard Test Method for Interfacial Tension of Insulating Liquids Against Water by the Ring Method. Value: ASTM D971-20.

  10. Standard Test Method for Visual Examination of Used Electrical Insulating Liquids in the Field

    ASTM D1524-15(2022) is the designation of the document titled Standard Test Method for Visual Examination of Used Electrical Insulating Liquids in the Field. Value: ASTM D1524-15(2022).

  11. Standard Test Method for Water in Insulating Liquids by Coulometric Karl Fischer Titration

    ASTM D1533-20 is the designation of the document titled Standard Test Method for Water in Insulating Liquids by Coulometric Karl Fischer Titration. Value: ASTM D1533-20.