| ≥1 piece |
|
Name of Indexes
|
Manufacturer’s Standard
|
USP-32
|
|
Appearance
|
white or yellowish powder
|
white or yellowish powder
|
|
Mg %
|
10.5-16.4
|
14.5-16.4
|
|
Loss on drying ≤%
|
20 - 29
|
29
|
|
Chloride≤%
|
0.05
|
0.05
|
|
Sulphate ≤%
|
0.2
|
0.2
|
|
As ≤%
|
0.0003
|
0.0003
|
|
Heavy metal ≤%
|
0.002
|
0.005
|
|
pH
|
5.0-9.0
|
5.0-9.0
|
|
Lead ≤%
|
-
|
1.0
|
|
Iron(Fe) ≤%
|
-
|
0.02
|
|
organic volatile impurities
|
|
Pass test
|