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ISO 3387:2020

Rubber -- Determination of crystallization effects by hardness measurements

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Kehtiv alates 02.03.2020
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Staatus
Kuupäev
Tüüp
Nimetus
02.03.2020
Põhitekst
02.07.2012
Põhitekst
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.
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