M00020265
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ISO DIS 5398-1 2017 Edition, August 2, 2017 LEATHER - CHEMICAL DETERMINATION OF CHROMIC OXIDE CONTENT - PART 1: QUANTIFICATION BY TITRATION
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Availability date: 07/14/2021
Description / Abstract:
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.