1 Scope
This International Standard describes a procedure for the determination of the following antidegradants in raw synthetic rubbers:
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— N-alkyl-N′-phenyl-p-phenylenediamine;
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— N-aryl-N′-aryl-p-phenylenediamine;
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— poly-2,2,4-trimethyl-1,2-dihydroquinoline.
Extender oils, when present, can interfere.
The method, with modification if necessary, can be applied to the determination of other amine antidegradants.