General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB 19521.9-2004
Scope
This standard specifies the requirements, testing and inspection rules for dangerous goods of gas mixtures. This standard applies to the inspection of the hazardous characteristics of dangerous goods of gas mixtures.
GB 19521.9-2004 history
2004GB 19521.9-2004 Safety code for inspection of hazardous properties for dangerous goods of gas mixture