ISO 23075:2021

This document describes a procedure for the determination of the following antidegradants in vulcanized rubbers:

°°°°°°°°° aminoketone group;

°°°°°°°°° naphthylamine group;

°°°°°°°°° diphenylamine group;

°°°°°°°°° p-phenylenediamine;

°°°°°°°°° monophenol group.

The groups of antidegradants are summarized in Table°°A.1 with the chemical names, the abbreviated terms and the CAS registry numbers.

Extender oils, when present, can interfere.

For poly-2,2,4-trimethyl-1,2-dihydroquinoline, the method provides only an approximation because of its polymeric nature.