scope:

This International Standard specifies a test method for the determination of the content of the following preservative agents:

- 2-(thiocyanomethylthio)-benzothiazole (TCMTB);

- 4-chloro-3-methylphenol (PCMC);

- 2-phenylphenol (OPP);

- 2-octylisothiazol-3(2H)-one (OIT);

in leather by liquid chromatography.

Preservative agents are necessary to protect leather from microbiological attack.

NOTE The preservative agents 4-chloro-3-methylphenol (PCMC) and 2-phenylphenol (OPP) can also be determined according to ISO 17070 and quantified by means of gas chromatography/mass spectroscopy (GC/MS).