BS EN 27627-2-1993 硬质金属.用火焰原子吸收光谱法进行化学分析.从0.001 %至0.02 %(m/m)含量钙、钾、镁和钠的测定

标准号：BS EN 27627-2-1993
中文标准名称：硬质金属.用火焰原子吸收光谱法进行化学分析.从0.001 %至0.02 %(m/m)含量钙、钾、镁和钠的测定
英文标准名称：Hardmetals - Chemical analysis by flame atomic absorption spectrometry - Determination of calcium, potassium, magnesium and sodium in contents from 0,001 to 0,02 % (m/m)
标准类型：H16
发布日期：1993/6/15 12:00:00
实施日期：1993/6/15 12:00:00
中国标准分类号：H16
国际标准分类号：77.040.30;77.160
适用范围：This part of ISO 7627 specifies the method to be used for the determination of calcium, potassium, magnesium and sodium contents of hardmetals within the range 0,001 to 0,02 % (m/m) by flame atomic absorption spectrometry. General requirements concerning the field of application, prin-ciple, interfering elements, apparatus, sampling and test report are given in ISO 7627/1. NOTE —In low concentrations, the determination of these elements is very critical. Every care should be taken to avoid contamination from atmosphere and reagents.