EN ISO 18218-2:2019

Leather - Determination of ethoxylated alkylphenols - Part 2: Indirect method (ISO 18218-2:2019)

Publication date:   Oct 16, 2019

General information

60.60 Standard published   Jul 10, 2019

CEN

CEN/TC 289 Leather

European Norm

59.140.30   Leather and furs

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Scope

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.

Life cycle

PREVIOUSLY

Replaces
EN ISO 18218-2:2015

NOW

PUBLISHED
EN ISO 18218-2:2019
60.60 Standard published
Jul 10, 2019