| ≥1 piece |
|
TESTING ITEMS
|
SPECIFICATIONS
|
|
CHARACTERISTICS
|
WHITE OR ALMOST WHITE CRYSTALS CRYSTALLINE POWDER
|
|
IDENTIFICATION
|
POSITIVE REACTION
|
|
PH
|
2.1-2.6
|
|
HEAVY METALS
|
≤10PPM
|
|
LEAD
|
???3MG/KG
|
|
ARSENIC
|
≤3PPM
|
|
OXALIC ACID
|
≤0.2%
|
|
SULPHATE ASH
|
≤0.1%
|
|
ASSAY
|
99.0%-100.5%
|
|
MESH
|
40-80MESH
|