|
ITEM |
STANDARD |
|
CHARACTERISTIC |
TRANSPARENT CRYSTALS OR AS WHITE
GRANULAR POWDER |
|
IDENTIFICATION |
PASS TEST |
|
APPEARANCE OF SOLUTION |
PASS TEST |
|
ALKALINITY |
PASS TEST |
|
ASSAY |
99.0-100.5% |
|
LOSS ON DRYING (WATER) |
3.0%-6.0% |
|
SODIUM |
<0.3% |
| READILY CARBONISABLE SUBSTANCES | PASS TEST |
|
TARTRATE |
PASS TEST |
|
HEAVY METAILS |
NOT MORE THAN 5 PPM |
|
CHLORIDES |
NOT MORE THAN 50 PPM |
|
SULPHATE |
NOT MORE THAN 150 PPM |
|
OXALATE |
NOT MORE THAN 100 PPM |
|
ARSENIC |
NOT MORE THAN 1 PPM |
|
LEAD |
NOT MORE THAN 0.5 PPM |
|
MERCURY |
NOT MORE THAN 1 PPM |