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ASTM D2685-95(2003)
Standard Test Method for Air and Carbon Tetrafluoride in Sulfur Hexafluoride by Gas Chromatography
Automaticky preložený názov:
Štandardná skúšobná metóda pre ovzdušie a Carbon fluorid v fluorid sírový plynovou chromatografiou
NORMA vydaná dňa 10.9.1995
Informácie o norme:
Označenie normy: ASTM D2685-95(2003)
Poznámka: NEPLATNÁ
Dátum vydania normy: 10.9.1995
Kód tovaru: NS-21153
Počet strán: 3
Približná hmotnosť: 9 g (0.02 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Anotácia textu normy ASTM D2685-95(2003) :
Keywords:
air, carbon tetrafluoride, sulfur hexafluoride, ICS Number Code 71.060.50 (Salts)
Doplňujúce informácie
| Significance and Use | ||||||
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Air and carbon tetrafluoride (CF4) are two contaminants of interest in sulfur hexafluoride (SF6). Both of these contaminants adversely affect the performance of SF6 when used as an electrical insulating gas. Specification for maximum levels of these contaminants are given in Specification D 2472. Gas chromatography is used to separate these contaminants from a sample of SF6 and to determine their concentration. |
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| 1. Scope | ||||||
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1.1 This test method covers the determination of air (Note 1) and carbon tetrafluoride as impurities in sulfur hexafluoride. Note1— Nitrogen, oxygen, or any of their mixtures is considered to be air. Commercial grade air or nitrogen is used for standardization. 1.2 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. |
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| 2. Referenced Documents | ||||||
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