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FINISHED PRODUCT SPECIFICATION
NO. TEST SPECIFICATION
1. Description White to off white powder
2. Solubility Soluble in water
3. Identification Sodium =+VE & Sulphite =+VE
4. Iron Max. 0.001%
5. Lead Max. 0.0002%
6. Assay NLT 90.0 % and NMT 100.5% of Na2S2O5
Storage : Store protected from light, Keep containers tightly closed..