项目Item　                                        分析纯　 化学纯
                                                  （AR）  （CP）
含量(AgSO4)Assay,%                               ≥99.7    99.0
澄清度试验Clarity                                   合格    合格
硝酸不溶物Insoluble matter in nitric acid,%      ≤0.02    0.04
硝酸盐(NO3)Nitrate,%                             ≤0.001　 0.002
铁(Fe)Iron,%                                     ≤0.001   0.002
铜、铅、铋Copper、lead、bismuth                     合格    合格
盐酸不沉淀物Substances not precipitated
by hydrochloric acid,%                           ≤0.03    0.06

ACS级
项目名称　        Item                                 Sign       ACS Grade
含量.............Assay..................................≥........98.0%
不溶物和AgCl.....Insoluble matter and silver chloride...≤........0.02%
硝酸盐(NO3)......Nitrate(NO3)...........................≤........0.001%
盐酸不沉淀物.....Substances not precipitated by
                 hydrochloric acid......................≤........0.03%
铁(Fe)...........Iron(Fe)...............................≤........0.001%