This part of GB/T 6730 specifies Nitroso-R salt spectrophotometric method for the determination of cobalt in iron ores.
This method is applicable to natural iron ores, concentrates, sinters and pellets.The concentration range in mass fraction is from 0,020% to 0,500%.
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This part of GB/T 6730 specifies the determination of zinc content of iron ores by 1-(2-pyridylazo)-2-naphthoI spectrophotometric method.
This method is applicable to natural iron ores, concentrates, sinters and pellets.The concentration range in mass fraction is from 0.010%-0.500%.
定价: 372元 / 折扣价: 317 元 加购物车
This part of GB/T 6730 specifies a niobium content testing method by the sulfochlorophenol S spectrophotometric method.
This method is applicable to natural iron ores, concentrates, sinters and pellets. The concentration range in mass fraction is from 0.007% to 0.350%.
定价: 372元 / 折扣价: 317 元 加购物车