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International Standard Category: Chemical reagents

GB/T 690-1992    Chemical reagents;Benzene
化学试剂 苯 ;
Category No.:71.040.30 Valid Status:superseded
Issued Organization:China Oil and Chemical Industry Association Issued Date:1992-09-01
Implemented Date:1993-7-1 Abolished Date:
Superseded Standard.:GB/T 690-2008 Chemical reagent - Benzene
Superseded Date:2008-11-1
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