指標(biāo)名稱

規(guī)格

分析純

化學(xué)純

指定級(jí)

含量

≥99.0%

≥99.0%

澄清實(shí)驗(yàn)度

合格

合格

硝酸不溶物

≤0.002%

≤0.005%

氯化物

≤0.001%

≤0.005%

硫酸鹽

≤0.005%

≤0.01%

砷

≤0.0005%

≤0.001%

鈉

≤0.002%

≤0.005%

鎂

≤0.001%

≤0.002%

鉀

≤0.002%

≤0.005%

鈣

≤0.001%

≤0.005%

鐵

≤0.0005%

≤0.001%

銅

≤0.001%

≤0.003%

鋅

≤0.001%

≤0.002%

銀

≤0.001%

≤0.003%

鉛

≤0.005%

≤0.01%