1 Scope
This International Standard specifies a test method for the determination of the content of the following preservative agents:
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— 2-(thiocyanomethylthio)-benzothiazole (TCMTB);
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— 4-chloro-3-methylphenol (PCMC);
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— 2-phenylphenol (OPP);
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— 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).