ISO 5398-4:2018 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 inductively coupled plasma (ICP) and is applicable to leathers which are expected to have chromic oxide contents in excess of 1 mg/kg. Two techniques for the preparation of the solution to be analysed are included. In the event of dispute, the wet oxidation technique is intended to be used.

ISO 5398-4:2018 Referenced Document

ISO 11885 Water quality - Determination of selected elements by inductively coupled plasma optical emission spectrometry (ICP-OES)
ISO 17294-2 Water quality — Application of inductively coupled plasma mass spectrometry (ICP-MS) — Part 2: Determination of selected elements including uranium isotopes*， 2023-10-18 Update
ISO 2418 Leather — Chemical, physical, mechanical and fastness tests — Position and preparation of specimens for testing*， 2023-02-06 Update
ISO 3696 Water for analytical laboratory use; Specification and test methods
ISO 4044 Leather — Chemical tests — Preparation of chemical test samples
ISO 4684 Leather — Chemical tests — Determination of volatile matter

2018 ISO 5398-4:2018 Leather — Chemical determination of chromic oxide content — Part 4: Quantification by inductively coupled plasma (ICP)
2007 ISO 5398-4:2007 Leather - Chemical determination of chromic oxide content - Part 4: Quantification by inductively coupled plasma - optical emission spectrometer (ICP-OES)