GB 6730.31
GB 6730.31, Total:2 items.
The international standard classification for "GB 6730.31" includes: Iron ores , Metalliferous minerals .
The Chinese standard classification for "GB 6730.31" includes: Iron ore .
中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会
- GB/T 6730.31-2017 Iron ores--Determination of vanadium--N-benzoyl-N-phenylhydroxylamine extraction spectrophotometric method
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 6730.31-1986 Methods for chemical analysis of iron ores - The benzoylphenylhydroxylamine extraction photometric method for the determination of vanadium content
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