|
规格
指标名称
|
一级
|
二级
|
三级
|
指定级
|
|
含量/%
|
≥99.8
|
≥99.8
|
≥99.8
|
根据客户要求定做
|
|
澄清度试验
|
合格
|
合格
|
合格
|
|
|
水不溶物/%
|
≤0.005
|
≤0.01
|
≤0.02
|
|
|
氯化物和氯酸盐(以Cl计) /%
|
≤0.001
|
≤0.002
|
≤0.005
|
|
|
硫化合物(以SO4计) /%
|
≤0.002
|
≤0.005
|
≤0.01
|
|
|
氮化合物(以N计) /%
|
≤0.000 5
|
≤0.001
|
≤0.002
|
|
|
磷酸盐(PO4) /%
|
≤0.001
|
≤0.002
|
≤0.005
|
|
|
硅酸盐(SiO3) /%
|
≤0.001
|
≤0.005
|
≤0.01
|
|
|
镁(Mg) /%
|
≤0.002
|
≤0.003
|
≤0.005
|
|
|
钾(K) /%
|
≤0.005
|
≤0.01
|
≤0.02
|
|
|
铝(Al) /%
|
≤0.005
|
≤0.01
|
≤0.02
|
|
|
钙(Ca)/%
|
≤0.005
|
≤0.007
|
≤0.01
|
|
|
铁(Fe) /%
|
≤0.000 5
|
≤0.001
|
≤0.002
|
|
|
重金属(以Pb计) /%
|
≤0.000 5
|
≤0.001
|
≤0.002
|
|
|
还原碘物质(以HCOOH计) /%
|
≤0.005
|
-
|
-
|
