Over deze norm
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 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.
|Nederlandse titel||Leer - Chemische bepaling van het chroomoxidegehalte - Deel 1: Kwantificering door titratie|
|Engelse titel||Leather - Chemical determination of chromic oxide content - Part 1: Qualification by titration|