Active standard | Published: 01/01/2026

ASTM D1933-03(2026)

Standard Specification for Nitrogen Gas as an Electrical Insulating Material

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Detail information

Designation: ASTM D1933-03(2026)

Publication date: 01/01/2026

Pages: 2

Country: American technical standard

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Anotation

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.

Keywords:
electrical insulating material, nitrogen gas, oxygen gas,, ICS Number Code 29.040.20 (Insulating gases)

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