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BS EN ISO 18218-2:2019 – TC:2020 Edition

BS EN ISO 18218-2:2019 – TC:2020 Edition

$186.33

Tracked Changes. Leather. Determination of ethoxylated alkylphenols – Indirect method

Published By Publication Date Number of Pages
BSI 2020 0
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This document specifies a method for determining alkylphenols (nonylphenol and octylphenol) and alkylphenol ethoxylates (nonylphenol ethoxylate and octylphenol ethoxylate) in leather and process auxiliaries. The analysis is based on high-performance liquid chromatography (HPLC) or gas chromatography-mass spectrometry (GC-MS).

The analysis of the alkylphenol ethoxylate is made by cleaving the alkylphenol ethoxylate and measuring the released alkylphenol.

NOTE

ISO 18218-1 and this document use different solvents for the extraction of the ethoxylated alkylphenols from leather. Consequently, the two analytical methods are expected to give similar trends but not necessarily the same absolute result for the ethoxylated alkylphenol content in leather.

PDF Catalog

PDF Pages PDF Title
25 National foreword
27 European foreword
29 Foreword
30 Introduction
32 1 Scope
2 Normative references
3 Terms and definitions
4 Principle
33 5 Apparatus and materials
6 Chemicals
34 7 Sampling and sample preparation
7.1 Preparation of leather samples
7.1.1 Sampling and preparation of samples
7.1.2 Sample extraction
35 7.2 Preparation of leather process auxiliary samples
7.3 Blank determination
7.4 Determination of OP and NP
7.5 Determination of OPEO and NPEO
36 7.6 Chromatographic analysis
7.7 ​Evaluation
8 Calibration
8.1 Calibration for OP and NP
8.2 Calibration for OPEO and NPEO
37 9 Calculation
9.1 Calculation of OP and NP
9.2 Calculation of OPEO and NPEO
10 Test report
39 Annex A(normative) Preparation of aluminium triiodide
40 Annex B(informative) Example of HPLC chromatograms
42 Annex C(informative) Example of GC-MS chromatograms
45 Bibliography

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BS EN ISO 18218-2:2019 - TC
$186.33