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NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
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GB/T 12689.1-2010
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Methods for chemical analysis of zinc and zinc alloys - Part 1: Determination of aluminum content - Chromazurol S-polyethylene glycol octyl phenylether-cetylpyridine bromine spectrophotometry, Chromeazurol S spectrophotometric method and EDTA titrimetry
锌及锌合金化学分析方法 第1部分：铝量的测定 铬天青S-聚乙二醇辛基苯基醚-溴化十六烷基吡啶分光光度法、CAS分光光度法和EDTA滴定法 |
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The Standardization Administration of the People's Republic of China |
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+86-755-25831330
