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International Standard Category: Chemical reagents

GB/T 609-1988    Chemical reagent-General method for the determination of total nitrogen
化学试剂 总氮量测定通用方法 ;
Category No.:71.040.30 Valid Status:superseded
Issued Organization:CPCIA Issued Date:1988-06-20
Implemented Date:1989-4-1 Abolished Date:
Superseded Standard.:GB/T 609-2006 Chemical Reagent - General Method for the Determination of Total Nitrogen
Superseded Date:2007-6-1
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