China 'GB/T 10267.5-2025
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 10267.5-2025
Methods for the Analysis of Calcium in Metals - Part 5: Determination of Nitrogen by Distillation-Nessler Reagent Spectrophotometry 金属钙分析方法 - 第5部分：蒸馏-奈斯勒试剂光度法测定氮
Issued Date:2025/10/5
Implemented Date:2026/5/1
Issued by:
The Standardization Administration of the People's Republic of China
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