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BS EN ISO 5398-3:2018

BS EN ISO 5398-3:2018

$102.76

Leather. Chemical determination of chromic oxide content – Quantification by atomic absorption spectrometry

Published By Publication Date Number of Pages
BSI 2018 16
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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.

PDF Catalog

PDF Pages PDF Title
2 National foreword
4 European foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
4 Principle
10 5 Sampling and sample preparation
6 Reagents
6.1 Reagents for wet oxidation method
6.2 Reagents for atomic absorption spectrometry
7 Apparatus
11 8 Methods
8.1 Preparation of analytical solution
8.1.1 Wet oxidation method
8.1.2 Microwave digestion method
8.2 Measurement of the aqueous solution
8.2.1 General
8.2.2 Preparation of calibration graph
8.2.3 Analysis of the test solution
12 9 Calculation and expression of results
10 Test report
13 Annex A (informative) Determination of water and other volatile matter
14 Annex B (informative) Suitable atomic absorption spectrometry (AAS) equipment

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BS EN ISO 5398-3:2018
$102.76