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International Standard Category: Cadmium, cobalt and their alloys

GB/T 13747.7-1992    and zirconium alloys - Determination of manganese content-Patassium periodate spectrophotometric method
锆及锆合金化学分析方法 高碘酸盐分光光度法测定锰量;
Category No.:77.120.70 Valid Status:superseded
Issued Organization:AQSIQ Issued Date:1992-1-1
Implemented Date:1993-6-1 Abolished Date:
Superseded Standard.:GB/T 13747.7-2019 Methods for chemical analysis of zirconium and zirconium alloys—Part 7:Determination of manganese content—Patassium periodate spectrometry and inductively coupled plasma atomic emission spectrometry
Superseded Date:2020-11-1
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