Chemicals for the leather tanning industry. Determination of cyclosiloxanes

Chemicals for the leather tanning industry. Determination of cyclosiloxanes

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1   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.