NEN-EN-ISO 5398-1
Leather - Chemical determination of chromic oxide content - Part 1: Qualification by titration
| Organization: | NEN |
| Publication Date: | 1 August 2007 |
| Status: | active |
| Page Count: | 18 |
| ICS Code (Leather and furs): | 59.140.30 |
scope:
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.
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