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Q/(HG)SJ 522-91 项目Item 分析纯 化学纯 (AR) (CP) 含量(以Pb计)Assay,% 77-78 77-78 乙酸不溶物Insoluble matter in acetic acid,% ≤0.02 0.02 氯化物(Cl)Chloride,% ≤0.003 0.005 硝酸盐(NO3)Nitrate,% ≤0.003 0.005 硷金属与硷土金属(以硫酸盐计)Alkali and alkalierath metals,% ≤0.2 0.5 铁(Fe)Iron,% ≤0.003 0.005 铜(Cu)Copper,% ≤0.003 0.005 锌(Zn)Zinc,% ≤0.005 0.005
ACS级 项目名称Item ACS Grade 稀乙酸不溶物Insoluble in dilute acetic acid ≤0.02% 氯化物(Cl)Chloride(Cl) ≤0.002% 硝酸盐及亚硝酸盐(以NO3计)Nitrate and Nitrite Passes test 镉(Cd)Cadmium(Cd) ≤0.002% 钙(Ca)Calcium(Ca) ≤0.01% 铁(Fe)Iron(Fe) ≤0.005% 钾(K)Potassium(K) ≤0.02% 钠(Na)Sodium(Na) ≤0.05% 锌(Zn)Zinc(Zn) ≤0.003%
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