SSH EN ISO 5398-4:2007

Lëkurë - Përcaktimi i përmbajtjes kimike të oksidit të kromit - Pjesa 4:Përcaktimi sasior i plazmës në çiftimin me kapje direkt - Spektrometri i emetimeve optike (ICP-OES) (ISO 5398-4:2007)

Leather - Chemical determination of chromic oxide content - Part 4: Quantification by inductively coupled plasma - optical emission spectrometer (ICP-OES) (ISO 5398-4:2007)

Scope

ISO 5398-4:2007 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 oxide contents in excess of 1 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.