| 指标名称 | Name of index | FCC-V | E 341（iii） | USP-30 | |
| 含量(无水物) | Assay | % | 34.0-40.0(as Ca) | ≥90(On the ignited basis) | 34.0-40.0 (as Ca) |
| P2O5含量(无水物) | P2O5 Content | % | -- | 38.5--48.0 (Anhydrous basis) | -- |
| 外观 | Description | a white, odourless powder which is stable in air | |||
| 鉴别试验 | Identification | Pass test | Pass test | Pass test | |
| 水溶物质 | Water-soluble substance | ≤% | -- | -- | 0.5 |
| 酸不溶物 | Acid-insoluble substance | ≤% | -- | -- | 0.2 |
| 碳酸盐 | Carbonate | -- | -- | Pass test | |
| 氯 | Chloride | ≤% | -- | -- | 0.14 |
| 硫酸盐 | Sulfate | ≤% | -- | -- | 0.8 |
| 二基盐和钙氧化物 | Dibasic salt and calcium oxide | -- | -- | Pass test | |
| 溶解测试 | Solubility tests | -- | Practically insoluble in water, insoluble in ethanol soluble in dilute hydrochloric and nitric acid | -- | |
| 砷 | Arsenic , | ≤mg/kg | 3 | 1 | 3 |
| 钡 | Barium | -- | -- | Pass test | |
| 氟 | Fluoride | ≤mg/kg | 75 | 50(expressed as fluorine) | 75 |
| 硝酸盐 | Nitrate | -- | -- | Pass test | |
| 重金属 | Heavy metals | ≤mg/kg | -- | -- | 30 |
| 铅 | Lead | ≤mg/kg | 2 | 1 | -- |
| 镉 | Cadmium | ≤mg/kg | -- | 1 | -- |
| 汞 | Mercury | ≤mg/kg | -- | 1 | -- |
| 灼烧失重 | Loss on ignition | ≤% | 10.0 | 8.0(800℃±25℃，0.5h) | 8.0 (800℃,0.5h) |
| 铝 | Aluminium | -- | Not more than 150 mg/kg (only if added to food for infants and young children) Not more than 500 mg/kg (for all uses except food for infants and young children). This applies until 31 March 2015 Not more than 200 mg/kg (for all uses except food for infants and young children). This applies from 1 April 2015. | -- | |
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