工业级(HG/T2326-92)
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饲料级(HG/2934-2000)
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含量(ZnSO4.7H2O )≥98.0%
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含量(ZnSO4.H2O)≥97.3%
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锌(Zn)≥22.51%
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锌(Zn)≥22%
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PH值(50g/l溶液)≥3.0
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砷(As)≥0.0005%
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氯化物≤0.2%
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铅(Pb)≤0.0001%
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铅(Pb)≤0.002%
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镉(Cd)≤0.002%
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锰(Mn)≤0.001%
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细度(通过250um筛)≥95%
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镉(Cd)≤0.002%
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铁(Fe)≤0.005%
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铜(Cu)≤0.002%
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水不溶物≤0.02%
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