Certificate Of Analysis Commodity: Sodium Metabisulfite Food Grade Contract NO: 1015-19 QUANTITY: 27MT LOT NO: 201908 MANUFACTURING DATE: 20191015 EXPIRATION DATE: 20201015 ITEMS STANDARD RESUTL Content(Na2S2O5) 96.5%Min 97.09% SO2 65.0% Min 65.36% Iron (Fe) 0.003%Max 0.001% As 0.0001% Max 0.0001% Water Insoluble Matter 0.05% Max 0.01% PB 0.002% Max 0.0014% PH 4-4.8 4.70