Hydrogen sulfide standard gas
Hydrogen sulfide standard gas, Total:2 items.
The international standard classification for "Hydrogen sulfide standard gas" includes: .
The Chinese standard classification for "Hydrogen sulfide standard gas" includes: .
Group Standards of the People's Republic of China
- T/CEC 636-2022 Preparation method of hydrogen fluoride standard gas in sulfur hexafluoride
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 11742-1989 standard method for examination of hydrogen sulfide in air of residential areas-Methylene blue spectrophotometric method
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