ASTM D117 - 18

    Standard Guide for Sampling, Test Methods, and Specifications for Electrical Insulating Liquids

    Active Standard ASTM D117 | Developed by Subcommittee: D27.01

    Book of Standards Volume: 10.03


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    Abstract

    This guide describes methods of testing and specifications for electrical insulating oils of petroleum origin intended for use in electrical cables, transformers, oil circuit breakers, and other electrical apparatus where the oils are used as insulating, or heat transfer media, or both. This guide is classified into the following categories: sampling practices, physical tests, electrical tests, chemical tests, and specifications. The test methods shall be as follows: aniline point; coefficient of thermal expansion; color; examination; flash and fire point; interfacial tension; pour point of petroleum products; refractive index; relative density; specific heat; thermal conductivity; turbidity; viscosity; dielectric breakdown voltage; dissipation factor and relative permittivity; gassing tendency; resistivity; stability under electrical discharge; acidity; carbon-type composition; compatibility with construction material; copper content; furanic compounds; gas analysis; gas content; inorganic chlorides and sulfates; neutralization numbers; oxidation inhibitor content; oxidation stability; polychlorinated biphenyl content; sediment and soluble sludge; sulfur; water content; mineral insulating oil for electrical apparatus; and high firepoint electrical insulating oils.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 This guide describes methods of testing and specifications for electrical insulating liquids intended for use in electrical cables, transformers, liquid circuit breakers, and other electrical apparatus where the liquids are used as insulating, or heat transfer media, or both.

    1.2 The purpose of this guide is to outline the applicability of the available test methods. Where more than one is available for measuring a given property, their relative advantages are described, along with an indication of laboratory convenience, precision, (95 % confidence limits), and applicability to specific types of electrical insulating oils.

    1.3 This guide is classified into the following categories: Sampling Practices, Physical Tests, Electrical Tests, Chemical Tests, and Specifications. Within each test category, the test methods are listed alphabetically by property measured. A list of standards follows:

    Category

    Section

    ASTM Standard

    Sampling:

    3

    D923

    Physical Tests:

     

     

     Aniline Point

    4

    D611

     Coefficient of Thermal Ex-
      pansion

    5

    D1903

     Color

    6

    D1500

     Examination: Visual Infrared

    7

    D1524, D2144, D2129

     Flash and Fire Point

    8

    D92

     Interfacial Tension

    9

    D971, D2285

     Pour Point of Petroleum
      Products

    10

    D97, D5949, D5950

    Particle Count in Mineral
      Insulating Oil

    11

    D6786

     Refractive Index and Specific
      Optical Dispersion

    12

    D1218, D1807

     Relative Density (Specific
      Gravity)

    13

    D287, D1217, D1298, D1481, D4052

     Specific Heat

    14

    D2766

     Thermal Conductivity

    15

    D2717

     Turbidity

    16

    D6181

     Viscosity

    17

    D445, D2161

    Electrical Tests:

     

     

     Dielectric Breakdown Voltage

    18

    D877, D1816, D3300

     Dissipation Factor and Rela-
      tive Permittivity (Dielectric
       Constant)

    19

    D924

    Gassing Characteristic
      Under Thermal Stress

    20

    D7150

     Gassing Tendency

    21

    D2300

     Resistivity

    22

    D1169

     Stability Under Electrical
      Discharge

    23

    D6180

    Chemical Tests:

     

     

     Acidity, Approximate

    24

    D1534

     Carbon-Type Composition

    25

    D2140

     Compatibility with Construc-
      tion Material

    26

    D3455

     Copper Content

    27

    D3635

    Elements by Inductively
      Coupled Plasma (ICP-AES)

    28

    D7151

    Furanic Compounds in
      Electrical Insulating Liquids

    29

    D5837

     Dissolved Gas Analysis

    30

    D3612

     Gas Content of Cable and
      Capacitor Oils

    31

    D831, D1827, D2945

     Inorganic Chlorides and
      Sulfates

    32

    D878

     Neutralization (Acid and
      Base) Numbers

    33

    D664, D974

     Oxidation Inhibitor Content

    34

    D2668, D4768

     Oxidation Stability

    35

    D1934, D2112, D2440

     Polychlorinated Biphenyl
      Content (PCB)

    36

    D4059

    Relative Content of
      Dissolved Decay

    37

    D6802

     Sediment and Soluble Sludge

    38

    D1698

     Sulfur, Corrosive

    39

    D1275

     Water Content

    40

    D1533

    Specification:

     

     

     Mineral Insulating Oil for
      Electrical Apparatus

    41

    D3487

     High Firepoint Electrical
      Insulating Oils

    42

    D5222

    Silicone Fluid used for Electrical
      Insulation

    43

    D4652

    Natural (Vegetable Oil) Ester
       Fluids used in Electrical
      Apparatus

    44

    D6871

    1.4 The values stated in SI units are to be regarded as standard. The values stated in parentheses are provided for information only.

    1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

    1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D92 Test Method for Flash and Fire Points by Cleveland Open Cup Tester

    D97 Test Method for Pour Point of Petroleum Products

    D287 Test Method for API Gravity of Crude Petroleum and Petroleum Products (Hydrometer Method)

    D445 Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)

    D611 Test Methods for Aniline Point and Mixed Aniline Point of Petroleum Products and Hydrocarbon Solvents

    D664 Test Method for Acid Number of Petroleum Products by Potentiometric Titration

    D831 Test Method for Gas Content of Cable and Capacitor Oils

    D877 Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using Disk Electrodes

    D878 Test Methods for Inorganic Chlorides and Sulfates in Insulating Oils

    D923 Practices for Sampling Electrical Insulating Liquids

    D924 Test Method for Dissipation Factor (or Power Factor) and Relative Permittivity (Dielectric Constant) of Electrical Insulating Liquids

    D971 Test Method for Interfacial Tension of Oil Against Water by the Ring Method

    D974 Test Method for Acid and Base Number by Color-Indicator Titration

    D1169 Test Method for Specific Resistance (Resistivity) of Electrical Insulating Liquids

    D1217 Test Method for Density and Relative Density (Specific Gravity) of Liquids by Bingham Pycnometer

    D1218 Test Method for Refractive Index and Refractive Dispersion of Hydrocarbon Liquids

    D1250 Guide for Use of the Petroleum Measurement Tables

    D1275 Test Method for Corrosive Sulfur in Electrical Insulating Liquids

    D1298 Test Method for Density, Relative Density, or API Gravity of Crude Petroleum and Liquid Petroleum Products by Hydrometer Method

    D1481 Test Method for Density and Relative Density (Specific Gravity) of Viscous Materials by Lipkin Bicapillary Pycnometer

    D1500 Test Method for ASTM Color of Petroleum Products (ASTM Color Scale)

    D1524 Test Method for Visual Examination of Used Electrical Insulating Liquids in the Field

    D1533 Test Method for Water in Insulating Liquids by Coulometric Karl Fischer Titration

    D1534 Test Method for Approximate Acidity in Electrical Insulating Liquids by Color-Indicator Titration

    D1698 Test Method for Sediments and Soluble Sludge in Service-Aged Insulating Oils

    D1807 Test Methods for Refractive Index and Specific Optical Dispersion of Electrical Insulating Liquids

    D1816 Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using VDE Electrodes

    D1827 Test Method for Gas Content (Nonacidic) of Insulating Liquids by Displacement with Carbon Dioxide

    D1903 Practice for Determining the Coefficient of Thermal Expansion of Electrical Insulating Liquids of Petroleum Origin, and Askarels

    D1934 Test Method for Oxidative Aging of Electrical Insulating Petroleum Oils by Open-Beaker Method

    D2112 Test Method for Oxidation Stability of Inhibited Mineral Insulating Oil by Pressure Vessel

    D2129 Test Method for Color of Clear Electrical Insulating Liquids (Platinum-Cobalt Scale)

    D2140 Practice for Calculating Carbon-Type Composition of Insulating Oils of Petroleum Origin

    D2144 Practices for Examination of Electrical Insulating Oils by Infrared Absorption

    D2161 Practice for Conversion of Kinematic Viscosity to Saybolt Universal Viscosity or to Saybolt Furol Viscosity

    D2285 Test Method for Interfacial Tension of Electrical Insulating Oils of Petroleum Origin Against Water by the Drop-Weight Method

    D2300 Test Method for Gassing of Electrical Insulating Liquids Under Electrical Stress and Ionization (Modified Pirelli Method)

    D2440 Test Method for Oxidation Stability of Mineral Insulating Oil

    D2668 Test Method for 2,6-di-tert-Butyl- p-Cresol and 2,6-di-tert-Butyl Phenol in Electrical Insulating Oil by Infrared Absorp

    D2717 Test Method for Thermal Conductivity of Liquids

    D2766 Test Method for Specific Heat of Liquids and Solids

    D2864 Terminology Relating to Electrical Insulating Liquids and Gases

    D2945 Test Method for Gas Content of Insulating Oils

    D3300 Test Method for Dielectric Breakdown Voltage of Insulating Oils of Petroleum Origin Under Impulse Conditions

    D3455 Test Methods for Compatibility of Construction Material with Electrical Insulating Oil of Petroleum Origin

    D3487 Specification for Mineral Insulating Oil Used in Electrical Apparatus

    D3612 Test Method for Analysis of Gases Dissolved in Electrical Insulating Oil by Gas Chromatography

    D3635 Test Method for Dissolved Copper In Electrical Insulating Oil By Atomic Absorption Spectrophotometry

    D4052 Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density Meter

    D4059 Test Method for Analysis of Polychlorinated Biphenyls in Insulating Liquids by Gas Chromatography

    D4652 Specification for Silicone Fluid Used for Electrical Insulation

    D4768 Test Method for Analysis of 2,6-Ditertiary-Butyl Para-Cresol and 2,6-Ditertiary-Butyl Phenol in Insulating Liquids by Gas Chromatography

    D5185 Test Method for Multielement Determination of Used and Unused Lubricating Oils and Base Oils by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES)

    D5222 Specification for High Fire-Point Mineral Electrical Insulating Oils

    D5837 Test Method for Furanic Compounds in Electrical Insulating Liquids by High-Performance Liquid Chromatography (HPLC)

    D5949 Test Method for Pour Point of Petroleum Products (Automatic Pressure Pulsing Method)

    D5950 Test Method for Pour Point of Petroleum Products (Automatic Tilt Method)

    D6180 Test Method for Stability of Insulating Oils of Petroleum Origin Under Electrical Discharge

    D6181 Test Method for Measurement of Turbidity in Mineral Insulating Oil of Petroleum Origin

    D6786 Test Method for Particle Count in Mineral Insulating Oil Using Automatic Optical Particle Counters

    D6802 Test Method for Determination of the Relative Content Of Dissolved Decay Products in Mineral Insulating Oils by Spectrophotometry

    D6871 Specification for Natural (Vegetable Oil) Ester Fluids Used in Electrical Apparatus

    D7150 Test Method for the Determination of Gassing Characteristics of Insulating Liquids Under Thermal Stress

    D7151 Test Method for Determination of Elements in Insulating Oils by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES)


    ICS Code

    ICS Number Code 29.040.10 (Insulating oils)

    UNSPSC Code

    UNSPSC Code 15121505(Transformer oil or insulating oil)


    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/D0117-18

    Citation Format

    ASTM D117-18, Standard Guide for Sampling, Test Methods, and Specifications for Electrical Insulating Liquids, ASTM International, West Conshohocken, PA, 2018, www.astm.org

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