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See Chinese contents: HG/T 2935-2006 HG/T 2935-2006: Feed grade ferrous sulfate
This standard specifies the requirements, test methods, inspection rules, signs, labels, packaging, transportation, storage of feed grade ferrous sulfate. This standard applies to monohydrate or heptahydrate feed grade ferrous sulfate. This product is used as iron supplement, in feed processing. Molecular formula: FeSO4 ? nH2O, n = 1 or n = 7 Relative molecular mass: 169.92 (n = 1), 278.01 (n = 7) (according to the international relative atomic mass in 2001)
