1.1 This test method covers two procedures for subjecting electrical insulating oils to oxidative aging:
1.1.1 Procedure A, without a metal catalyst, and
1.1.2 Procedure B, with a metal catalyst.
1.2 This test method is applicable to oils used as impregnating or pressure media in electrical power transmission cables if less than 10 % of the oil evaporates during the aging procedures. It applies and is generally useful primarily in the evaluation and quality control of unused oils, either inhibited or uninhibited.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.
1.4 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.
ASTM D1934-95(2012) Referenced Document
ASTM D1169 Standard Test Method for Specific Resistance (Resistivity) of Electrical Insulating Liquids
ASTM D664 Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration
ASTM D923 Standard Practices for Sampling Electrical Insulating Liquids
ASTM D924 Standard Test Method for Dissipation Factor (or Power Factor) and Relative Permittivity (Dielectric Constant) of Electrical Insulating Liquids
ASTM E145 Standard Specification for Gravity-Convection And Forced-Ventilation Ovens
ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
ASTM D1934-95(2012) history
2020ASTM D1934-20 Standard Test Method for Oxidative Aging of Electrical Insulating Liquids by Open-Beaker Method
2012ASTM D1934-95(2012) Standard Test Method for Oxidative Aging of Electrical Insulating Petroleum Oils by Open-Beaker Method
1995ASTM D1934-95(2005) Standard Test Method for Oxidative Aging of Electrical Insulating Petroleum Oils by Open-Beaker Method
1995ASTM D1934-95(2000) Standard Test Method for Oxidative Aging of Electrical Insulating Petroleum Oils by Open-Beaker Method