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規(guī)格
指標(biāo)名稱
|
一級(jí)
|
二級(jí)
|
三級(jí)
|
指定級(jí)
|
|
含量/%
|
≥99.8
|
≥99.8
|
≥99.8
|
根據(jù)客戶要求定做
|
|
澄清度試驗(yàn)
|
合格
|
合格
|
合格
|
|
|
水不溶物/%
|
≤0.005
|
≤0.01
|
≤0.02
|
|
|
氯化物和氯酸鹽(以Cl計(jì)) /%
|
≤0.001
|
≤0.002
|
≤0.005
|
|
|
硫化合物(以SO4計(jì)) /%
|
≤0.002
|
≤0.005
|
≤0.01
|
|
|
氮化合物(以N計(jì)) /%
|
≤0.000 5
|
≤0.001
|
≤0.002
|
|
|
磷酸鹽(PO4) /%
|
≤0.001
|
≤0.002
|
≤0.005
|
|
|
硅酸鹽(SiO3) /%
|
≤0.001
|
≤0.005
|
≤0.01
|
|
|
鎂(Mg) /%
|
≤0.002
|
≤0.003
|
≤0.005
|
|
|
鉀(K) /%
|
≤0.005
|
≤0.01
|
≤0.02
|
|
|
鋁(Al) /%
|
≤0.005
|
≤0.01
|
≤0.02
|
|
|
鈣(Ca)/%
|
≤0.005
|
≤0.007
|
≤0.01
|
|
|
鐵(Fe) /%
|
≤0.000 5
|
≤0.001
|
≤0.002
|
|
|
重金屬(以Pb計(jì)) /%
|
≤0.000 5
|
≤0.001
|
≤0.002
|
|
|
還原碘物質(zhì)(以HCOOH計(jì)) /%
|
≤0.005
|
-
|
-
|
