標(biāo)準(zhǔn)編號:	GB/T 5121.16-2008
中文名稱:	銅及銅合金化學(xué)分析方法 第16部分：鉻含量的測定
英文名稱:	Methods for chemical analysis of copper and copper alloys—Part 15:Determination of cobalt content
中標(biāo)分類:	H13    重金屬極其合金分析方法
行業(yè)分類:	GB    國家標(biāo)準(zhǔn)
ICS分類:	77.120.30 77.120.30    銅和銅合金 77.120.30
發(fā)布機(jī)構(gòu):	國家質(zhì)量監(jiān)督檢驗檢疫總局 國家標(biāo)準(zhǔn)化管理委員會
發(fā)布日期:	2008-06-17
實施日期:	2008-12-1
標(biāo)準(zhǔn)狀態(tài):	superseded
被新標(biāo)準(zhǔn)替代:	GB/T 13293.3-1991 高純陰極銅化學(xué)分析方法 塞曼效應(yīng)電熱原子吸收光譜法測定鉻、錳、鎘量
被替代日期:	1992-10-1
替代舊標(biāo)準(zhǔn):	GB/T 5121.16-1996 銅及銅合金化學(xué)分析方法 鈦量的測定
翻譯語言:	英文
文件格式:	PDF
中文字符數(shù):	10000 字
翻譯價格(元):	700.0
交付時間:	付款后 1 個工作日

1.1 Scope This method specifies the method for determining chromium content in copper and copper alloys. This method is applicable to the determination of chromium content in copper and copper alloys. The determination range is: 0.00005%~0.0010%. 1.2 Principle Dissolve the test sample with nitric acid and then inject the test solution of certain volume into the electrothermal atomizer; measure the chromium absorbance at the wavelength of 357.9nm with the Zeeman effect atomic absorption spectrometer, and then calculate the mass fraction of chromium in the adoption of the working curve method. 1.3 Reagents Unless otherwise stated, only identified analytical reagent and distilled water, or deionized water or water with equivalent purity shall be used for analysis. Vessels used for test shall be thoroughly rinsed with water after being soaked in nitric acid (1.3.3) for 12h.

Foreword I 1 Method I Zeeman Effect Electrothermal Atomic Absorption Spectrometric Method 1 2 Method II Flame Atomic Absorption Spectrometry 4 3 Method III Titrimetric Method 7 Appendix A (Informative) Comparison between Chapter and Article Numbers of Method II in this Part and those of ISO 4744: 1984 11 Appendix B (Informative) Technical Differences between Method II in this Part and ISO 4744: 1984 and the Reasons 12