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[GB/T 11989-2020] 表面活性剂 工业烷基芳基磺酸钠（不包括苯衍生物）试验方法[现行]
发布时间：2020-04-28
实施时间：2020-11-01
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[GB/T 38722-2020] 表面活性剂 界面张力的测定 拉起液膜法[现行]
发布时间：2020-04-28
实施时间：2020-11-01
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[GB/T 38729-2020] 表面活性剂 工业伯烷基硫酸钠试验方法[现行]
发布时间：2020-04-28
实施时间：2020-11-01
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