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Standard Code | Standard Title | Standard Class | Order |
---|---|---|---|
GB/T 3654.10-1983 |
Methods for chemical analysis of ferroniobium--The EDTA volumetric method for the determination of aluminium content 铌铁化学分析方法 EDTA容量法测定铝量 |
China National Standards hemi |
English PDF |
GB/T 3653.5-1983 |
Methods for chemical analysis of ferroboron--The chromatographic separation-barium sulfate gravimetric method for the determination of sulfur content 硼铁化学分析方法 色层分离硫酸钡重量法测定硫量 |
China National Standards hemi |
English PDF |
GB/T 3653.2-1983 |
Methods for chemical analysis of ferroboron--The gasometric method for the determination of carbon content 硼铁化学分析方法 气体容量法测定碳量 |
China National Standards hemi |
English PDF |
GB/T 3143-1982 |
Colour determination method of liquid chemicals (Hazen unit--platinum-cobalt scale) 液体化学产品颜色测定法 (Hazen单位--铂-钴色号) |
China National Standards hemi |
English PDF |
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