Rubber compounding ingredients. p-Phenylenediamine antidegradants (PPDs). Test methods Ingestion-build-225643 This part of ISO 12651

This part of ISO 12651 defines terms and concepts relevant to electronic document workflow management

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BS EN 2240-093 on incandescent lamps

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This document does not promote uniformity in the approach across all organizations

Rubber compounding ingredients. <i>p</i>-Phenylenediamine antidegradants (PPDs). Test methods Ingestion-build-225643 This part of ISO 126511 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: