ISO 5398-3:2018 PDF

Scope: 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 chromium by atomic absorption spectrometry and is applicable to leathers which are expected to have chromic oxide contents in excess of 5 mg/kg. Two techniques for the preparation of the solution to be analysed are included. In the case of disputes, the wet oxidation technique is to be used.

ISO 5398-3:2018 Referenced Document

EN 14602:2012 Footwear - Test methods for the assessment of ecological criteria
ISO 2418:2017 Leather - Chemical, physical and mechanical and fastness tests - Sampling location
ISO 3696:1987 Water for analytical laboratory use; Specification and test methods
ISO 4044:2017 Leather - Chemical tests - Preparation of chemical test samples
ISO 4684:2005 Leather - Chemical tests - Determination of volatile matter

2018 ISO 5398-3:2018 Leather - Chemical determination of chromic oxide content - Part 3: Quantification by atomic absorption spectrometry
2007 ISO 5398-3:2007 Leather - Chemical determination of chromic oxide content - Part 3: Quantification by atomic absorption spectrometry