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)试验方法标准
英文:Surface active agents—Test methods of technical sodium alkylarylsulphonates (excluding benzene derivatives) GB/T 1198...
英文:Surface active agents—Test methods of technical sodium alkylarylsulphonates (excluding benzene derivatives) GB/T 1198...