| ≥1 piece |
|
Parameters
|
Specification
|
|
Assay
|
99.0-101.0%
|
|
Alkalinity (as K2CO3)
|
1.0% max
|
|
Acidity (as sorbic acid)
|
1.0% max
|
|
Aldehyde (as formaldehyde)
|
1.0% max
|
|
mercury (Hg)
|
1 ppm max
|
|
Heavy metals (as Pb)
|
10 ppm max
|
|
Arsenic (As)
|
3 ppm max
|
|
Residue on ignition
|
qualified
|
|
Loss on drying
|
1.0% max
|