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ISO 3387:2020

Rubber — Determination of crystallization effects by hardness measurements ISO 3387:2020

Publication date:   Mar 2, 2020

General information

60.60 Standard published   Mar 2, 2020

ISO

ISO/TC 45/SC 2 Testing and analysis

International Standard

83.060   Rubber

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Scope

This document specifies a test based on hardness measurements for determining the progressive stiffening of rubber with time, caused by crystallization. It is limited to materials having an initial hardness at a test temperature of from 10 IRHD to 85 IRHD.
The method is applicable to raw, unvulcanized (compounded) and vulcanized rubber. It is mainly of interest for rubber with a marked crystallization tendency at temperatures experienced in cold climates, such as chloroprene and natural rubber.
The method is not applicable to fast-crystallizing materials which crystallize to a considerable degree within the timespan of 15 min used for conditioning at test temperature.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 3387:2012

NOW

PUBLISHED
ISO 3387:2020
60.60 Standard published
Mar 2, 2020