GB/T 4842-1995
Pure argon (English Version)
- Standard No.
- GB/T 4842-1995
- Language
- Chinese, Available in English version
- Release Date
- 1995
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Status
- 2007-02
- Replace By
- GB/T 4842-2006
- Lastest
- GB/T 4842-2017
- Scope
- This standard specifies the technical requirements, inspection methods, acceptance rules, packaging, marking, storage and transportation of pure argon products. This standard applies to gaseous and liquid pure argon extracted from air and synthetic ammonia tail gas by cryogenic method, mainly used for metal welding and smelting. Molecular formula: Ar Relative molecular mass: 39.948 (according to the international relative atomic mass in 1991)
GB/T 4842-1995 history
- 2017 GB/T 4842-2017 Argon
- 2006 GB/T 4842-2006 Argon
- 1995 GB/T 4842-1995 Pure argon