GB/T 42238-2022表面活性剂环氧丙烷聚合型表面活性剂中游离环氧丙烷的测定气相色谱法国家标准
英文:Surface active agents—Determination of free propylene oxide content in propylene oxide adduct surfactants—GC method G...
英文:Surface active agents—Determination of free propylene oxide content in propylene oxide adduct surfactants—GC method G...