DIN EN ISO 5398-3:2007
皮革.氧化铬含量的化学测定.第3部分:用原子吸收光谱法的量化
Leather - Chemical determination of chromic oxide content - Part 3: Quantification by atomic absorption spectrometry (ISO 5398-3:2007) English version of DIN EN ISO 5398-3:2007-10
2018-10
- 标准号
- DIN EN ISO 5398-3:2007
- 发布
- 2007年
- 发布单位
- 德国标准化学会
- 替代标准
- DIN EN ISO 5398-3:2018
- 当前最新
- DIN EN ISO 5398-3:2018
- 引用标准
- EN 14602 ISO 2418 ISO 3696:1987 ISO 4044 ISO 4684
- 适用范围
- This part of ISO 5398 describes a method for the determination of chromium in aqueous solution obtained from leather.This is an analysis for total chromium in leather;it is not compound specific or specific to its oxidation state. This method describes the determination of chromium by atomic absorption spectromerty and is applicable to teathers which are expected to hace chromic oxide contents in excess of 5 mg/kg. Two techniques for the preparation of the solution to be analysed are included .In the case of dispute,the wet oxidation technique is to be used.