Standard

NS-EN ISO 23649:2025

Mar 2025 Published

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Abstract

This document specifies a method for determining the total content of the following cyclosiloxanes in chemicals for the leather tanning industry:— octamethylcyclotetrasiloxane (D4);— decamethylcyclopentasiloxane (D5);— dodecamethylcyclohexasiloxane (D6);This method requires the use of gas chromatography (GC) equipped with a single quadrupole mass spectrometer (MS) to identify and quantify the cyclosiloxanes.

Document information

Standard from SN
Published: 7 March 2025
Edition: 2025-02
Version: 1
Document type: NAT
ISBN:

ICS 59.140.30
National Committee CEN/TC 289

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Refers: ISO 3696:1987
Adopted from: EN ISO 23649:2025

NS-EN ISO 23649:2025

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Abstract

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