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规格 指标名称 | 二级 | 三级 | 级 |
含量/% | 99.0-101.0 | 98.0-101.0 | 根据客户要求定做 |
水不容物/% | ≤0.005 | ≤0.02 | |
氯化物(Cl) /% | ≤0.001 | ≤0.005 | |
总氮量(N) /% | ≤0.001 | - | |
磷酸盐(PO4) /% | ≤0.000 5 | ≤0.002 | |
砷(As) /% | ≤0.000 2 | ≤0.000 2 | |
锰(Mn) /% | ≤0.05 | - | |
高铁(Fe) /% | ≤0.02 | ≤0.10 | |
铜(Cu) /% | ≤0.002 | ≤0.01 | |
锌(Zn) /% | ≤0.005 | ≤0.02 | |
铅(Pb)/% | ≤0.002 | ≤0.005 | |
氨水不沉淀物(硫酸盐)/% | ≤0.05 | ≤0.2 |