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ASTM D2129-17(2026)

Standard Test Method for Color of Clear Electrical <brk/>Insulating Liquids (Platinum-Cobalt Scale)
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1.1 This standard describes a test method for the visual determination of the color of clear insulating liquids.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 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.

1.4 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.

4.1 Color is significant chiefly as an indicator of contamination in electrical insulating liquids. Frequently this contamination is the result of solvent action in the apparatus involved or it may indicate possible contamination. No definite relationship can be established between color and the physical and electrical characteristics of the liquid; for that reason color in itself has limited value as a measure of condition. For more precise determination of color, Test Method D1209 may be used.

SDO ASTM: ASTM International
Document Number D2129
Publication Date Jan. 1, 2026
Language en - English
Page Count 3
Revision Level 17(2026)
Supercedes
Committee D27.07
Publish Date Document Id Type View
Jan. 1, 2026 D2129-17R26 Revision
Jan. 1, 2017 D2129-17 Revision
Nov. 1, 2010 D2129-05R10 Revision
Dec. 1, 2005 D2129-05 Revision
Dec. 10, 1997 D2129-97 Revision