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

标准号：DIN EN ISO 5398-3-2007
中文标准名称：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
英文标准名称：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
标准类型：Y46
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：Y46
国际标准分类号：59.140.30
引用标准：ISO 2418;ISO 3696-1987;ISO 4044;ISO 4684;EN 14602
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.