ISO 13365-1:2020

This document specifies a test method by acetonitrile solvent extraction for the determination of the total content (solvent extractible) of the following preservative agents in leather by liquid chromatography:
-   2-(thiocyanomethylthio)-benzothiazole (TCMTB);
-   4-chloro-3-methylphenol (PCMC);
-   2-phenylphenol (OPP);
-   2-octylisothiazol-3(2H)-one (OIT);
This method can also be used to determine breakdown products of these preservative agents, which protect leather from microbiological attack.