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About This Item

 

Full Description

ISO 3387:2020 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.

 

Document History

  1. ISO 3387:2020

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    Rubber - Determination of crystallization effects by hardness measurements

    • Most Recent
  2. ISO 3387:2012


    Rubber - Determination of crystallization effects by hardness measurements

    • Historical Version
  3. ISO 3387/Cor1:2000


    Corregendum

    • Historical Version
  4. ISO 3387:1994


    Rubber - Determination of crystallization effects by hardness measurements

    • Historical Version