PRODUCT NAME: SODIUM METABISULPHITE PRODUCTION TIME: FEB, 2022 EXPIRY TIME: FEB, 2023 ITEM SPECIFICATION TEST RESULT Na2S2O5 content : 97%min 97.6% Heavy metals (as Pb) : 0.001%max 0.0001% Iron (Fe) : 0.003%max 0.0015% Water insoluble : 0.05%max 0.01% Sodium Chloride (NaCl): 0.05% max 0.045% Arsenic (As) : 0.0002%max 0.0001% PH Value : 4.0-4.6 4.5
