质量指标 |
Specification |
GB 1886.333-2021 |
FCC VII |
||
含量(以Ca计),w/% |
无水物 |
Content(as Ca),w/% |
Anhydrous |
16.8-18.3 |
16.8-18.3 |
|
一水物 |
|
Monohydrate |
15.9-17.7 |
15.9-17.7 |
砷(As),mg/kg ≤ |
Arsenic(As),mg/kg ≤ |
3.0 |
3.0 |
||
铅(Pb),mg/kg ≤ |
Lead (Pb),mg/kg ≤ |
2.0 |
2.0 |
||
重金属(以P b计),mg/kg ≤ |
Heavy metal(as Pb),mg/kg ≤ |
10 |
———— |
||
氟化物(以F计),mg/kg ≤ |
Fluoride(as F),mg/kg ≤ |
25.0 |
50.0 |
||
灼烧减量(无水物),w/% |
Loss on ignition (Anhydrous),w/% |
14.0-15.5 |
14.0-15.5 |
||
干燥减量(一水物),w/% ≤ |
Loss on drying(Monohydrate),w/% ≤ |
1.0 |
1.0 |
||
澄清度 |
Clarity |
通过试验 |
———— |
||
碳酸盐 |
Carbonate |
通过试验 |
———— |
||
游离酸及其副盐 |
Free Acid&Its' Auxiliary Salt |
通过试验 |
———— |