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ASTM D 1934 : 2020

Current
Current

The latest, up-to-date edition.

Standard Test Method for Oxidative Aging of Electrical Insulating Liquids by Open-Beaker Method
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-05-2021

1.1This test method covers two procedures for subjecting electrical insulating liquids to oxidative aging:

1.1.1Procedure A, without a metal catalyst, and

1.1.2Procedure B, with a metal catalyst.

1.2This test method is applicable to insulating liquids used as impregnating or pressure media in electrical power transmission cables if less than 10 % of the insulating liquid evaporates during the aging procedures. It applies and is generally useful primarily in the evaluation and quality control of unused insulating liquids, either inhibited or uninhibited.

1.3This test method is applicable to study the long-term behavior of an insulating liquid being considered for free breathing transformers. An unsealed vessel aging procedure, in presence of air or oxygen, allows greatly increased oxidation rate of the liquid. This procedure is rapid and provides a controlled thermal stress assessment.

1.4The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.

1.5An open beaked test shall only be carried out on liquids with flash points at or above 130°C or 15°C above the oven temperature. 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. See 7.5 for a specific warning statement.

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.

Committee
D 27
DocumentType
Test Method
Pages
3
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

ASTM D 974 : 2014 : EDT 2 Standard Test Method for Acid and Base Number by Color-Indicator Titration
ASTM D 974 : 2001 Standard Test Method for Acid and Base Number by Color-Indicator Titration
ASTM E 177 : 1990 : REV A : R1996 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
ASTM D 923 : 2015 : R2023 Standard Practices for Sampling Electrical Insulating Liquids
ASTM D 664 : 2017 : REV A Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration
ASTM D 924 : 2023 Standard Test Method for Dissipation Factor (or Power Factor) and Relative Permittivity (Dielectric Constant) of Electrical Insulating Liquids
ASTM D 974 : 2022 Standard Test Method for Acid and Base Number by Color-Indicator Titration
ASTM D 445 : 2021 : EDT 2 Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
ASTM D 974 : 2021 Standard Test Method for Acid and Base Number by Color-Indicator Titration
ASTM D 445 : 2017 : REV A Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
ASTM D 923 : 2015 Standard Practices for Sampling Electrical Insulating Liquids
ASTM D 924 : 2015 Standard Test Method for Dissipation Factor (or Power Factor) and Relative Permittivity (Dielectric Constant) of Electrical Insulating Liquids
ASTM D 445 : 1988 Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and the Calculation of Dynamic Viscosity)
ASTM D 664 : 1995 Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration
ASTM D 445 : 2019 : REV A Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
ASTM D 445 : 2019 Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
ASTM D 445 : 2001 Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (the Calculation of Dynamic Viscosity)
ASTM D 664 : 2011 : REV A Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration
ASTM D 445 : 2021 Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
ASTM D 445 : 2018 Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
ASTM D 445 : 2021 : EDT 1 Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
ASTM D 445 : 2023 Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)

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