| ≥1 piece |
|
Name of index |
QB2555-2002 |
|
Content£¨MgSO 4 ·7H 2 O£?, % |
≥99.30 |
|
Chlorides£¨As CL£?,% |
≤0.1 |
|
Fluorides£¨As F£?£?% |
≤0.0015 |
|
Arsenic (As)£?% |
≤0.00005 |
|
Pb£?% |
≤0.0001 |
|
Water insolubles£?% |
≤0.05 |
|
Clear grade experiment |
Clear |