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Rubber compounding ingredients. p-Phenylenediamine antidegradants (PPDs). Test methods Ingestion-build-225643 BS EN 2240-093 on incandescent
Rubber compounding ingredients. p-Phenylenediamine antidegradants (PPDs). Test methods Ingestion-build-225643 BS EN 2240-093 on incandescent
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BS EN 2240-093 on incandescent lamps
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Rubber compounding ingredients. <i>p</i>-Phenylenediamine antidegradants (PPDs). Test methods Ingestion-build-225643 BS EN 2240-093 on incandescent1 Scope This document applies to a variety of substituted p phenylenediamine antidegradants (PPDs) used in the rubber industry. The three general classes of PPDs are dialkyl, alkyl aryl and diaryl, which are used to impart ozone resistance to rubber. The following test methods are of greatest significance in assessing the purity of production PPDs, and hence their suitability for use in rubber. They are specified in this document as follows:
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