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sklademVydáno: 2018-07-23
BS EN ISO 5398-1:2018
Leather. Chemical determination of chromic oxide content Quantification by titration
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| Označení normy: | BS EN ISO 5398-1:2018 |
| Počet stran: | 14 |
| Vydáno: | 2018-07-23 |
| ISBN: | 978 0 580 98545 4 |
| Status: | Standard |
DESCRIPTION
BS EN ISO 5398-1:2018
This standard BS EN ISO 5398-1:2018 Leather. Chemical determination of chromic oxide content is classified in these ICS categories:
- 59.140.30 Leather and furs
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.