Standard Practice for Combustible Gases in the Gas Space of Electrical Apparatus Using Portable Meters

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-12-2019

Publisher

American Society for Testing and Materials

1.1This field practice covers the detection and estimation of combustible gases in the gas blanket above the oil or in gas detector relays in transformers using portable instruments. It is applicable only with transformers using mineral oil as the dielectric fluid. Gases dissolved in the oil and noncombustible gases are not determined. A method of calibrating the instruments with a known gas mixture is included.

1.2This practice affords a semi-quantitative estimate of the total combustible gases present in a gas mixture. If a more accurate determination of the total amount of combustible gases or a quantitative determination of the individual components is desired, use a laboratory analytical method, such as Test Method D3612.

1.3This 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. Specific precautionary statements are given in Section 7.

1.4This 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	Standard Practice
Pages	3
ProductNote	This standard also refers to ASTM C 57.104
PublisherName	American Society for Testing and Materials
Status	Current
Supersedes	ASTM D 3284 : 2005 : R2011 ASTM D 3284 : 2005 : R2011