ASTM D2668-07R21 - Standard Test Method for 2,6-<emph type="bold"><emph type="ital">di-tert</emph></emph >-Butyl-<emph type="bold"><emph type="ital"> p</emph></emph>-Cresol and 2,6-<emph type="bold"><emph type="ital">di-tert</emph></emph>-Butyl Phenol in Electrical Insulating Oil by Infrared Absorption

1.1 This test method covers the determination of the weight percent of 2,6-ditertiary-butyl paracresol (DBPC) and 2,6-ditertiary-butyl phenol (DBP) in new or used electrical insulating oil in concentrations up to 0.5 % by measuring its absorbance at the specified wavelengths in the infrared spectrum.

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.