標準編號:	GB/T 5121.20-2008
中文名稱:	銅及銅合金化學分析方法 第20部分：鋯含量的測定
英文名稱:	Methods for chemical analysis of copper and copper alloys - Part 20: Determination of zirconium content
中標分類:	H13    重金屬極其合金分析方法
行業分類:	GB    國家標準
ICS分類:	77.120.30 77.120.30    銅和銅合金 77.120.30
發布機構:	國家質量監督檢驗檢疫總局 國家標準化管理委員會
發布日期:	2008-6-17
實施日期:	2008-12-1
標準狀態:	valid
替代舊標準:	GB/T 5121.20-1996 銅及銅合金化學分析方法 鋯量的測定
翻譯語言:	英文
文件格式:	PDF
中文字符數:	4000 字
翻譯價格(元):	280.0
交付時間:	付款后 1 個工作日

1 Scope This part specifies the determination method for zirconium content in copper and copper alloys. This part is applicable to the determination of zirconium content in copper and copper alloys, and the determination range is 0.10% ~ 0.70%. 2 Principle Dissolve the test portion into hydrochloric acid and hydogen peroxide and adjust the acidity with perchloric acid, then determine the absorbance with an spectrophotometer at the wavelength of 540nm, with the xylenol orange as the developer and the test portion solution, to which the ethylene diamine tetraacetic acid (EDTA) is added for the screening of zirconium, as reference.

Foreword I 1 Scope 1 2 Principle 1 3 Reagent 1 4 Apparatus 2 5 Test Sample 2 6 Procedures 2 7 Calculation of Analysis Results 3 8 Precision 3 9 Quality Assurance and Control 4