|
质量指标 |
Specification |
GB25560-2010 |
FCC V |
|
含量（干基计），w% ≥ |
Content(dry basis) |
98.0 |
98.0 |
|
砷（As）,mg/Kg ≤ |
Arsenic |
3 |
3 |
|
氟化物（以F计）,mg/Kg ≤ |
Fluorides |
10 |
10 |
|
重金属（以Pb计）mg/Kg ≤ |
Heavy metals |
10 |
------- |
|
水不溶物,w% ≤ |
Water Insolubles |
0.2 |
0.2 |
|
铅（Pb）,mg/Kg ≤ |
Lead |
2 |
2 |
|
干燥失重,w% ≤ |
Loss on drying |
1.0 |
1.0 |
|
pH值,（10g/L 溶液） |
pH Value |
4.2-4.7 |
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