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UNE EN ISO 5398-4:2020
Leather - Chemical determination of chromic oxide content - Part 4: Quantification by inductively coupled plasma (ICP) (ISO 5398-4:2018)
Cuero. Determinación química del contenido en óxido de cromo. Parte 4: Cuantificación por plasma de acoplamiento inductivo (ICP) (ISO 5398-4:2018)
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| Standard number: | UNE EN ISO 5398-4:2020 |
| Pages: | 16 |
| Released: | 2020-02-12 |
| Status: | Standard |
| Pages (Spanish): | 15 |
DESCRIPTION
UNE EN ISO 5398-4:2020
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 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.