Chemicals for the leather tanning industry. Determination of cyclosiloxanes
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Standard number:
BS EN ISO 23649:2025
Pages:
18
Released:
2025-02-28
ISBN:
978 0 539 28270 2
Status:
Standard
DESCRIPTION
BS EN ISO 23649:2025
This standard BS EN ISO 23649:2025 Chemicals for the leather tanning industry. Determination of cyclosiloxanes is classified in these ICS categories:
59.140.30 Leather and furs
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.