技术指标 | 规格 | ||||
第一基准PT | 工作基准PT | 优级纯GR | 分析纯AR | 化学纯CP | |
含量 | ≥99.98-100.02% | ≥99.95-100.05% | ≥99.8% | ≥99.8% | ≥99.5% |
澄清度实验 | 合格 | 合格 | 合格 | 合格 | 合格 |
水不溶物 | ≤0.003% | ≤0.003% | 0.003% | ≤0.005% | ≤0.02 % |
碘化物 | ≤0.001% | ≤0.001% | 0.001% | ≤0.002% | ≤0.01 % |
溴化物 | ≤0.02% | ≤0.02% | 0.01% | ≤0.05% | ≤0.02% |
总氮量 | ≤0.0005% | ≤0.0005% | 0.0005% | ≤0.001 % | ≤0.001 % |
磷酸盐 | ≤0.0005% | ≤0.0005% | 0.0005% | ≤0.0005 % | ≤0.002 % |
钠 | ≤0.02% | ≤0.02% | 0.02% | ≤0.01 % | ≤0.01 % |
镁 | ≤0.0005% | ≤0.0005% | 0.0005% | ≤0.001% | ≤0.002% |
钙 | ≤0.001% | ≤0.001% | 0.001% | ≤0.001 % | ≤0.001 % |
铁 | ≤0.0001% | ≤0.0001% | 0.0001% | ≤0.0003% | ≤0.0005% |
钡 | ≤0.001% | ≤0.001% | 0.001% | ≤0.001% | ≤0.001% |
重金属 | ≤0.0005% | ≤0.0005% | 0.0005% | ≤0.0005% | ≤0.001 % |
硫酸盐 | - | - | - | ≤0.002 % | ≤0.005 % |