DIN EN ISO 5398-4-2007 皮革.氧化铬含量的化学测定.第4部分:电感耦合等离子体发射光谱法(ICP-OES)的量化
Leather - Chemical determination of chromic oxide content - Part 4: Quantification by inductively coupled plasma - optical emission spectrometer (ICP-OES) (ISO 5398-4:2007) English version of DIN EN ISO 5398-4:2007-10
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 inductively coupled plasma-optical emission spectrometry and is applicable to leathers which are expected to have chromic exide contents in excess of 1mg/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.