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International Standard Category: Laboratory ware and related apparatus

GB 7230-1987    Gas detector tube units
气体检测管装置 ;
Category No.:71.040.20 Valid Status:abolished
Issued Organization:China State Bureau of Standards Issued Date:1987-02-04
Implemented Date:1987-10-1 Abolished Date:2009-12-01
Superseded Standard.:GB/T 7230-2008 Gas detector tube measurement system
Superseded Date:2009-12-1
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