標(biāo)準(zhǔn)編號(hào):	GB/T 223.21-1994
中文名稱:	鋼鐵及合金化學(xué)分析方法 5-CI-PADAB分光光度法測(cè)定鈷量
英文名稱:	Methods for chemical analysis of iron steel and alloy.The 5-CL-PADAB spectrophotometric method for the determination of cobalt content
中標(biāo)分類:	H11    鋼鐵與鐵合金分析方法
行業(yè)分類:	GB    國(guó)家標(biāo)準(zhǔn)
ICS分類:	77.080 77.080    黑色金屬 77.080
發(fā)布機(jī)構(gòu):	國(guó)家質(zhì)量監(jiān)督檢驗(yàn)檢疫總局
發(fā)布日期:	1994-1-17
實(shí)施日期:	1994-10-1
標(biāo)準(zhǔn)狀態(tài):	valid
替代舊標(biāo)準(zhǔn):	GB 223.21-1982
翻譯語(yǔ)言:	英文
文件格式:	PDF
中文字符數(shù):	4000 字
翻譯價(jià)格(元):	280.0
交付時(shí)間:	付款后 1 個(gè)工作日

1 Subject Content and Application Scope This standard specifies the 5-Cl-PADAB spectrophotometric method for determination of cobalt content. This standard is applicable to the determination of cobalt content in carbon steel and alloy steel. Determination range: 0.0050%~0.50%. 2 Principle After the sample is dissolved with acid, in the solution of pH 7~8, the coordination compound generated by 5-Cl -PADAB and cobalt is acidified with dilute sulfuric acid, and takes on stable aubergine; measure the absorbance.

1 Subject Content and Application Scope 2 Principle 3 Reagent 4 Analytical Procedures 5 Calculation of Analysis Results 6 Precision Appendix A Source Data of Precision Test (Additional) Additional Explanations