标准编号:	GB/T 20123-2006
中文名称:	钢铁 总碳硫含量的测定 高频感应炉燃烧后红外吸收法(常规方法)
英文名称:	Steel and iron—Determination of total carbon and sulfur content Infrared absorption method after combustion in an induction furnace (routine method)
中标分类:	H11    钢铁与铁合金分析方法
行业分类:	GB    国家标准
ICS分类:	77.080.01 77.080.01    黑色金属综合 77.080.01
发布机构:	国家质量监督检验检疫总局 国家标准化管理委员会
发布日期:	2006-03-02
实施日期:	2006-9-1
标准状态:	valid
翻译语言:	英文
文件格式:	PDF
中文字符数:	14000 字
翻译价格(元):	280.0
交付时间:	付款后 1 个工作日

1 Scope This Standard specifies an infrared absorption method after combustion in an induction furnace for the determination of the total carbon and sulfur content in steel and iron. The method is applicable to carbon contents of mass fraction between 0.005 % and 4.3 % and to sulfur contents of mass fraction between 0.000 5 % and 0.33 %. This method is intended to be used in normal production operations and is intended to meet all generally accepted good laboratory practices of the type expected by recognized laboratory accreditation agencies. It uses commercially available equipment which is calibrated and calibration verified using steel and iron certified reference materials and its performance is controlled using normal statistical process control (SPC) practices. This method can be used in the single element mode i.e determination of carbon and sulfur independently or in the simultaneous mode i.e determination of carbon and sulfur concurrently. 2 Normative References The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments or revisions of any of these publications do not apply. However, parties to agreements based on this Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.

1 Scope 1 2 Normative References 1 3 Principle 2 4 Reagents 2 5 Apparatus 3 6 Test Method 3 7 Sampling 5 8 Procedure 5 9 Expression of Results 10 10 Test Report 12 Appendix A (Informative) Examples of Diagram for Analytical Principles 13 Appendix B (Informative) Example for Calculation of a Linearity Check 17 Appendix C (Informative) Additional Information on International Cooperative Tests 18 Appendix D (Informative) Graphical Representation of Precision Data 23