Looking for serious alternative suppliers for Ascorbic AcidSteady orders for a steady business relationshipMust satisfy the following prerequisitesMust meet USP requirements when tested according to Ph. Eur + USP + FCCSulphated Ash 0.0% - max 0.1Heavy metals <10 PPM - max 10Lead <10 PPM - max 10Zinc <25 PPM - max 25Copper <5 PPM - max 5Iron <1 PPM - max 2Arsenic <3 PPM - max 3Oxalic Acid <0.2% PPM - max 0.2Assay 99.0 to 100.5%Powder Fineness (USP - Sieves)Through Sieve No. 20 (850MCM) max 100Through Sieve No. 100 (150MCM) max 70Through Sieve No. 20 (850MCM) max 20Organic Volatile Impurities to meet USP requirements