Rubber compounding ingredients. p-Phenylenediamine antidegradants (PPDs). Test methods Ingestion-build-205840 BS EN 1367-7 is the

BS EN 1367-7 is the seventh part of the BS EN 1367 series that specifies the reference test method used for type testing

Wood substitutes

Method B applies to all types of surfaces

With obedience and compliance to BS 6508

Rubber compounding ingredients. <i>p</i>-Phenylenediamine antidegradants (PPDs). Test methods Ingestion-build-205840 BS EN 1367-7 is the1 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: