Leather - Chemical determination of chromic oxide content - Part 1: Quantification by titration
NORM herausgegeben am 1.2.2019
Bezeichnung normen: ČSN EN ISO 5398-1
Zeichen: 793851
Katalog-Nummer: 506157
Ausgabedatum normen: 1.2.2019
Zahl der Seiten: 20
Gewicht ca.: 60 g (0.13 Pfund)
Land: Tschechische technische Norm
Kategorie: Technische Normen ČSN
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 chrome by iodometric titration and is to be applicable to chromium-tanned leathers which are expected to have chromic oxide contents in excess of 0,3 %. Two different methods are described as alternatives for obtaining chromium in a suitable solution. It is appropriate to use either method