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International Standard Category: Chemical reagents

GB/T 649-1999    Chemical reagent-Potassium bromide
化学试剂 溴化钾;
Category No.:71.040.30 Valid Status:superseded
Issued Organization:NBS Issued Date:1999-9-1
Implemented Date:2000-6-1 Abolished Date:
Superseded Standard.:GB/T 649-2023 Chemical reagent—Potassium bromide
Superseded Date:2024-3-1
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