ASTM D1933-03(2017) PDF

Scope: 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.

ASTM D1933-03(2017) Referenced Document

ASTM D2029 Standard Test Methods for Water Vapor Content of Electrical Insulating Gases by Measurement of Dew Point
ASTM E105 Standard Practice for Probability Sampling Of Materials
ASTM E260 Standard Practice for Packed Column Gas Chromatography

2003 ASTM D1933-03(2017) Standard Specification for Nitrogen Gas as an Electrical Insulating Material
2003 ASTM D1933-03(2008) Standard Specification for Nitrogen Gas as an Electrical Insulating Material
2003 ASTM D1933-03 Standard Specification for Nitrogen Gas as an Electrical Insulating Material
1997 ASTM D1933-97 Standard Specification for Nitrogen Gas as an Electrical Insulating Material