質(zhì)量指標(biāo) |
Specification |
GB 1886.333-2021 |
FCC VII |
含量(以Ca計),w/% |
無水物 |
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 |
鉛(Pb),mg/kg???? ????????≤ |
Lead (Pb),mg/kg?????? ?????????≤ |
2.0 |
2.0 |
重金屬(以P b計),mg/kg ???≤ |
Heavy metal(as Pb),mg/kg? ?????≤ |
10 |
———— |
氟化物(以F計),mg/kg? ????≤ |
Fluoride(as F),mg/kg?? ?????????≤ |
25.0 |
50.0 |
灼燒減量(無水物),w/% |
Loss on ignition (Anhydrous),w/% |
14.0-15.5 |
14.0-15.5 |
干燥減量(一水物),w/%? ???≤ |
Loss on drying(Monohydrate),w/% ≤ |
1.0 |
1.0 |
澄清度 |
Clarity |
通過試驗 |
———— |
碳酸鹽 |
Carbonate |
通過試驗 |
———— |
游離酸及其副鹽 |
Free Acid&Its' Auxiliary Salt |
通過試驗 |
———— |