ISO 4945:1977 钢.氮含量的测定.分光光度法

标准编号：ISO 4945:1977

中文名称：钢.氮含量的测定.分光光度法

英文名称：Steel — Determination of nitrogen content — Spectrophotometric method

发布日期：1977-12

标准范围

该方法适用于氮含量在0.002%（m/m）到0.050%（m/m）之间，硅含量低于0.6%（m/m）的非合金钢和低合金钢。它只允许测定可转化为铵盐的氮含量。规定了原理、试剂、仪器、取样、程序、结果表达和试验报告。

This method is applicable to non-alloy and low-alloy steels containing between 0.002 % (m/m) and 0.050 % (m/m) of nitrogen and less than 0.6 % (m/m) of silicon. It allows the determination only of the nitrogen content which can be converted to an ammonium salt. Specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report.

标准预览图