Sodium-Sulphite
| Packing | 50kg LDPE lined HDPE bags | |
| Purity | 98% min | |
| Iron | 10 ppm max | |
| Copper | 2 ppm max | |
| Chlorides | 2 ppm max | |
| Heavy Metals as Lead | 10 ppm max | |
| Matter Insoluble in Water | 0.01% max | |
| Appearance | White Powder | |
Sodium-Sulphite
| Packing | 50kg LDPE lined HDPE bags | |
| Purity | 98% min | |
| Iron | 10 ppm max | |
| Copper | 2 ppm max | |
| Chlorides | 2 ppm max | |
| Heavy Metals as Lead | 10 ppm max | |
| Matter Insoluble in Water | 0.01% max | |
| Appearance | White Powder | |