质量标准
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