ISO 23649:2025
International Standard
Current Edition
·
Approved on
14 February 2025
Chemicals for the leather tanning industry — Determination of cyclosiloxanes
ISO 23649:2025 Files
English
9 Pages
Current Edition
BHD
31.54
ISO 23649:2025 Scope
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.
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