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See Chinese contents: HG 2934-2000 HG 2934-2000: Feed grade zinc sulphate
This standard specifies the requirements, test methods, inspection rules, signs, labels, packaging, transportation, storage of feed grade zinc sulfate. This standard applies to feed grade zinc sulfate, which is produced by reacting zinc-containing raw materials with sulfuric acid. This product is used as a zinc supplement in the feed, after pretreatment. Molecular formula: ZnSO4 ? H2O Relative molecular mass: 179.47 (according to the international relative atomic mass in 1997) Molecular formula: ZnSO4 ? 7H2O Relative molecular mass: 287.56 (according to the international relative atomic mass in 1997)
