ASTM D 117 : 2018 : REDLINE
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Standard Guide for Sampling, Test Methods, and Specifications for Electrical Insulating Liquids
06-27-2022
English
12-11-2018
1.1This 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.
1.2The 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.
1.3This 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- | 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 | 10 | D97, D5949, D5950 |
| Particle Count in Mineral | 11 | D6786 |
| Refractive Index and Specific | 12 | D1218, D1807 |
| Relative Density (Specific | 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- | 19 | D924 |
| Gassing Characteristic | 20 | D7150 |
| Gassing Tendency | 21 | D2300 |
| Resistivity | 22 | D1169 |
| Stability Under Electrical | 23 | D6180 |
| Chemical Tests: | ||
| Acidity, Approximate | 24 | D1534 |
| Carbon-Type Composition | 25 | D2140 |
| Compatibility with Construc- | 26 | D3455 |
| Copper Content | 27 | D3635 |
| Elements by Inductively | 28 | D7151 |
| Furanic Compounds in | 29 | D5837 |
| Dissolved Gas Analysis | 30 | D3612 |
| Gas Content of Cable and | 31 | D831, D1827, D2945 |
| Inorganic Chlorides and | 32 | D878 |
| Neutralization (Acid and | 33 | D664, D974 |
| Oxidation Inhibitor Content | 34 | D2668, D4768 |
| Oxidation Stability | 35 | D1934, D2112, D2440 |
| Polychlorinated Biphenyl | 36 | D4059 |
| Relative Content of | 37 | D6802 |
| Sediment and Soluble Sludge | 38 | D1698 |
| Sulfur, Corrosive | 39 | D1275 |
| Water Content | 40 | D1533 |
| Specification: | ||
| Mineral Insulating Oil for | 41 | D3487 |
| High Firepoint Electrical | 42 | D5222 |
| Silicone Fluid used for Electrical | 43 | D4652 |
| Natural (Vegetable Oil) Ester | 44 | D6871 |
1.4The values stated in SI units are to be regarded as standard. The values stated in parentheses are provided for information only.
1.5This 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.
1.6This 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.
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