ISO/DIS 4658

Under development

This Draft International Standard is in the enquiry phase with ISO members.

Will replace ISO 4658:2020

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Abstract

This document specifies, for acrylonitrile-butadiene rubbers (NBRs):

— physical and chemical tests on raw rubbers;

— standard materials, a standard test formulation, equipment and processing methods for evaluating the vulcanization characteristics.

The mixing preferred method is the single stage mixing with LIM (laboratory internal mixer).

This standard contributes to the following Sustainable Development Goal