Rubber, vulcanized or thermoplastic. Determination of stress relaxation in compression - Testing at constant temperature Ingestion-build-207047 oil and solids contents

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Rubber, vulcanized or thermoplastic. Determination of stress relaxation in compression - Testing at constant temperature Ingestion-build-207047 oil and solids contents1 Scope This document specifies two procedures for determining the decrease in counterforce exerted by a test piece of vulcanized or thermoplastic rubber which has been compressed to a constant deformation and maintained thus at a predetermined test temperature. The counterforce can be determined either by means of a continuous measurement system or by a discontinuous measurement one. Two test methods are specified, method A and method B. In method A