| ≥1 piece |
|
ITEM |
STANDARD |
|
DEFINITION |
COMPLIES WITH THE TEST |
|
CHARACTERS |
A WHITE OR COLORLESS CRYSTALLINE GRANULAR, OR CRYSTAL POWDERS |
|
IDENTIFICATION |
COMPLIES WITH THE TEST |
|
ASSAY |
99.5%-100.5% |
|
LOSS ON DRYING |
<= 0.5% |
|
READILY CARBONISABLE SUBSTANCES |
PASS THE TEST |
|
SULFATE ASH |
<= 0.1% |
|
IRON |
<= 50PPM |
|
CHLORIDE |
<= 50PPM |
|
OXALATE |
<= 300PPM |
|
SULPHATE |
<= 150PPM |
|
HEAVY METALS |
<= 10PPM |
|
ARSENIC |
<= 4PPM |
|
CALCIUM |
<= 200PPM |
|
BARIUM |
PASS THE TEST |