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ASTM D2144-01

Historical Revision

Standard Practices for Examination of Electrical Insulating Oils by Infrared Absorption

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1.1 These test methods are to be used for the recording and interpretation of infrared absorption spectra of electrical insulating oils from 2.5 to 25 µm (4000 to 400 cm-1).

1.2 Two test methods are covered, a Reference Standard Test Method and a Differential Test Method.

1.3 These test methods are designed primarily for use as rapid continuity tests for identifying a shipment of oil from a supplier by comparing its spectrogram with that obtained from previous shipments, or with the sample on which approval tests were made. They also may be used for the detection of certain types of contamination in oils, and for the identification of oils in storage or service, by comparison of the spectra of the unknown and known oils. The test methods are not intended for the determination of the various constituents of an oil.

1.4 Caution--Infrared absorption is a tool of high resolving power. Conclusions as to continuity of oil quality should not be drawn until sufficient data have been accumulated so that the shipment-to-shipment variation is clearly established, for example.

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 and health practices and determine the applicability of regulatory limitations prior to use.


SDO ASTM: ASTM International
Document Number D2144
Publication Date April 10, 2001
Language en - English
Page Count 4
Revision Level 01
Supercedes
Committee D27.03
Publish Date Document Id Type View
May 1, 2007 D2144-07 Revision
April 10, 2001 D2144-94 Revision
April 10, 2001 D2144-01E01 Revision
April 10, 2001 D2144-01 Revision
Dec. 1, 2021 D2144-07R21 Reaffirmation
Nov. 1, 2013 D2144-07R13 Reaffirmation