高频感应炉燃烧红外吸收法测定优质碳素结构钢碳含量的不确定度评定

Evaluation of Measurement Uncertainty of Carbon Contents in Quality carbon structure steels with High Frequency Induction Furnace Combustion IR-absorption Method

本稿依据中国合格评定国家认可委员会发布的《化学分析中不确定度的评估指南(CNAS-GL06:2006)》、《材料理化检验测量不确定度评估指南及实例(CNAS-CL10:2006)》;以及全国物理化学计量委员会发布的《JJF 1059-2012测量不确定度评定及表示》、《JJF 1135-2005化学分析测量不确定度评定》,采用中国金属学会推荐技术和方法(CSM 01010106-2006)和《GB/T 28898-2012冶金材料化学成分分析测量不确定度评定》对红外吸收气体分析法测定45#钢中C元素的不确定度进行评定。试验方法按照《GB/T20123-2006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)》。

This draft is based on the guidelines for the evaluation of uncertainty in chemical analysis issued by China National Accreditation Committee for conformity assessment(CNAS-GL06:2006),guidelines and examples for evaluation of measurement uncertainty in physical and chemical inspection of materials(CNAS-CL10:2006),and JJF 1059-2012 evaluation and expression of measurement uncertainty and JJF issued by National Committee of physical and chemical metrology 1135-2005 evaluation of uncertainty in chemical analysis measurement",the uncertainty of determination of C element in 45#steel by infrared absorption gas analysis was evaluated by using the technology and method recommended by China Society of metals(CSM 01010106-2006)and GB/T 28898-2012 evaluation of uncertainty in measurement of chemical composition of metallurgical materials".The test method is in accordance with GB/T 20123-2006 determination of total carbon and sulfur content of iron and steel by infrared absorption method after combustion in high frequency induction furnace(conventional method).