标准编号:	SN/T 2004.3-2005
中文名称:	电子电气产品中六价铬的测定 第3部分:二苯碳酰二肼分光光度法
英文名称:	Determination of Chromium(VI) in electrical and electronic equipment - Part 3: 1 5-Diphenylcarbohydrazide spectrophotometric method
中标分类:	L04    基础标准与通用方法
行业分类:	SN    商检行业标准
发布机构:	国家质量监督检验检疫总局
发布日期:	2005-7-18
实施日期:	2006-1-18
标准状态:	abolished
作废日期:	2017-12-22
翻译语言:	英文
文件格式:	PDF

1 Scope This part specifies the 1.5-diphenylcarbahydrazide spectrophotometric determination method for chromium (VI) in electrical and electronic equipment. This part is applicable to determination of chromium (VI) in electrical and electronic equipment. 2 Method Summary The water-soluble or water-insoluble chromium (VI) compound is leached from the sample by alkaline leach liquor; the chromium (VI) in leach liquor react with 1.5-diphenylcarbahydrazide in acid solution and generate claret-colored complex, then spectrophotometric determination is carried out where the wavelength is 540nm. 3 Reagents and Materials

Foreword I 1 Scope 2 Method Summary 3 Reagents and Materials 4 Equipment 5 Analysis Procedures