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International Standard Category: Cadmium, cobalt and their alloys

GB/T 13747.4-1992    and zirconium alloys - Determination of chromium content - Diphenylcarbazide spectrophotometric method
锆及锆合金化学分析方法 二苯卡巴肼分光光度法测定铬量;
Category No.:77.120.70 Valid Status:to be superseded
Issued Organization:AQSIQ Issued Date:1992-1-1
Implemented Date:1993-6-1 Abolished Date:
Superseded Standard.:GB/T 13747.4-2020
Superseded Date:2021-2-1
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