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BS EN ISO 5398-1:2018

BS EN ISO 5398-1:2018

$86.31

Leather. Chemical determination of chromic oxide content – Quantification by titration

Published By Publication Date Number of Pages
BSI 2018 14
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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 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.

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 Wet oxidation method
6.2 Alkaline fusion method
6.3 Iodometric titration
7 Apparatus
11 8 Methods
8.1 Preparation of analytical solution
8.1.1 Wet oxidation method
8.1.2 Alkaline fusion method
8.2 Measurement of the aqueous solution
9 Calculation and expression of results
9.1 General
12 9.2 Repeatability
10 Test report
13 Annex A (informative) Determination of water and other volatile matter

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BS EN ISO 5398-1:2018
$86.31