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GB/T 20975.31-2019  China national standard english version:

　
GB
中华人民共和国国家标准
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA

GB/T 20975.31-2019

Methods for chemical analysis of aluminium and aluminium alloys—Part 31：Determination of phosphorus content—Molybdenum blue spectrophotometry
铝及铝合金化学分析方法 第31部分：磷含量的测定 钼蓝分光光度法
Issued Date:2019 　 Implemented Date:2020-5-1
Issued by: 　 The Standardization Administration of the People's Republic of China
　

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GB Standard Code GB/T 20975.31-2019
Standard Category China National Standards
GB Standard English Title Methods for chemical analysis of aluminium and aluminium alloys—Part 31：Determination of phosphorus content—Molybdenum blue spectrophotometry
GB Standard Chinese Title 铝及铝合金化学分析方法 第31部分：磷含量的测定 钼蓝分光光度法
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