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ASTM D1933-03(2017)

Historical Reaffirmation

Standard Specification for Nitrogen Gas as an Electrical Insulating Material

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1.1 This specification covers three types of nitrogen used as an electrical insulating material in electrical equipment:

1.1.1 Type I, obtained from the air by liquefaction processes and dried,

1.1.2 Type II, obtained from the air by liquefaction processes, deoxidized with hydrogen over a platinum catalyst, and dried, and

1.1.3 Type III, obtained from the air by liquefaction processes and if necessary deoxidized by suitable means.

Note 1: The fact that metal containers are filled with materials meeting this specification does not exclude the possibility that the materials might become contaminated with unlisted impurities.

1.2 The following safety hazards caveat pertains only to the test method portion, Section 5, of this specification: 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.


This specification covers three types of nitrogen gas used as an electrical insulating material in electrical equipment: Type I, obtained from the air by liquefaction processes and dried; Type II, obtained from the air by liquefaction processes, deoxidized with hydrogen over a platinum catalyst, and dried; and Type III, obtained from the air by liquefaction processes and if necessary deoxidized by suitable means. Materials shall be tested and the individual grades shall conform to specified values of % volume of nitrogen and rare gases, hydrogen, and oxygen; and dew point.


SDO ASTM: ASTM International
Document Number D1933
Publication Date Jan. 1, 2017
Language en - English
Page Count 2
Revision Level 03(2017)
Supercedes
Committee D27.02
Publish Date Document Id Type View
Oct. 1, 2003 D1933-03 Revision
April 10, 1997 D1933-97 Revision
Jan. 1, 2017 D1933-03R17 Reaffirmation
May 1, 2008 D1933-03R08 Reaffirmation