| ≥1 piece |
|
Items tested
|
Standard
|
|
Appearance
|
White crystalline or crystalline powder
|
|
Assay
|
99-100.5% min
|
|
Heavy metal as Pb
|
10 ppm max
|
|
As
|
4 ppm max
|
|
Fumaric Acid
|
1.0% max
|
|
Maleic Acid
|
0.05% max
|
|
Water insolubles
|
0.10% max
|
|
Residue on ignition
|
0.1% max
|