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    Standard substance (liquid standard substance) for purity determination of carbon tetrachlorides

    标准物质组分量值范围及不确定度备注1-丁烯中杂质测定用标准物质1-丁烯中丙烷、环......

  • Aromatic hydrocarbon analysis standard substance (liquid standard substance)
    Aromatic hydrocarbon analysis standard substance (liquid standard substance)

    标准物质名称组分量值范围及不确定度备注芳香烃分析标准物质苯、甲苯、二甲苯、乙苯、......

  • Ethylene glycol analysis standard substance (liquid standard substance)
    Ethylene glycol analysis standard substance (liquid standard substance)

    标准物质名称组分量值范围及不确定度备注乙二醇分析标准物质乙二醇、二乙二醇、三乙二......

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    Gas reference materials for environmental gas monitoring

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