Announcement of the State Administration of Quality Supervision, Inspection and Quarantine issued the National Metrology Technical Regulations

2021-10-12

(No. 132 of 2012) clarified that JJG577-2012 "Diaphragm Gas Meter" Verification Regulations (hereinafter referred to as "New Regulations") was approved on September 3, 2012 and implemented on March 3, 2013.

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