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指標(biāo)名稱

規(guī)格

分析純AR

化學(xué)純CP

含量

≥99.0%

≥98.0%

澄清度實驗

合格

合格

水不溶物

≤0.005%

≤0.003%

干燥失重

≤1.0%

≤2.0%

氯化物

≤0.003%

≤0.001%

硫化合物

≤0.003%

≤0.001%

氮

≤0.001%

≤0.01%

 磷酸鹽及硅酸鹽

≤0.005%

≤0.002%

鈉

≤0.05%

≤0.1%

鎂

≤0.002%

≤0.005%

鈣

≤0.002%

≤0.02%

鐵

≤0.0005%

≤0.002%

銅

≤0.0005%

≤0.001%

 鉛

≤0.0005%

≤0.001%