Leather - Chemical determination of chromic oxide content - Part 3: Quantification by atomic absorption spectrometry

Informationen über die Norm:

Bezeichnung normen: ČSN EN ISO 5398-3
Zeichen: 793851
Katalog-Nummer: 506158
Ausgabedatum normen: 1.2.2019
Zahl der Seiten: 20
Gewicht ca.: 60 g (0.13 Pfund)
Land: Tschechische technische Norm
Kategorie: Technische Normen ČSN

Die Annotation des Normtextes ČSN EN ISO 5398-3 (793851):

This document 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 spectrometry and is applicable to leathers which are expected to have 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 disputes, the wet oxidation technique is to be used