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International Standard Category: Chemical reagents

GB 12591-1990    Chemical reagent--Diethyl ether
化学试剂 乙醚 ;
Category No.:71.040.30 Valid Status:abolished
Issued Organization:CSBTS Issued Date:1990-12-18
Implemented Date:1991-12-1 Abolished Date:2002-12-01
Superseded Standard.:GB/T 12591-2002 Chemical reagent-Diethyl ether
Superseded Date:2002-1-2
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