指标名称 | GB1886.214-2016 | USP |
碳酸钙含量(干基计), % | 98.0-100.5 | 98.0-100.5 |
盐酸不溶物, % | ≤0.2 | ≤0.2 |
镁及碱金属盐, % | ≤1.0 | ≤1.0 |
铁, % | - | ≤0.003 |
氟, % | ≤0.005 | ≤0.005 |
干燥失重, % | ≤2.0 | ≤2.0 |
钡, % | ≤0.03 | ≤0.03 |
铅, % | ≤0.0003 | ≤0.0003 |
砷, % | ≤0.0003 | ≤0.0003 |
汞, % | ≤0.0001 | ≤0.0001 |
镉, % | ≤0.0002 | - |
重金属, % | - | ≤0.003 |
游离碱 | 通过试验 | - |
有机挥发性物质 | - | 符合要求 |