Chongqing Provincial Standard of the People's Republic of China
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DB50/T 432-2012
Scope
This standard specifies the technical requirements, test methods, acceptance rules, packaging, marking, transportation and storage of membrane gas meter diaphragms. This standard applies to the production and acceptance of membrane gas meter diaphragms.
DB50/T 432-2012 history
2012DB50/T 432-2012 Technical specification for membrane gas meter diaphragm