| ≥1 piece |
|
Name of index
|
GB14889-94
|
|
Appearance
|
White or light yellow crystal or powder
|
|
Content (KCHO) %
|
99.0
|
|
Alkalinity
|
Accord with the test
|
|
Heavy metals (Pb) %
|
0.001
|
|
As, %
|
0.0003
|
|
Loss on drying %
|
3.0-6.0
|