Abstract Preview

ISO 2930:2017 specifies a method for determining the plasticity retention index (PRI) of raw natural rubber.

The PRI is a measure of the resistance of raw natural rubber to thermal oxidation. A high resistance to thermal oxidation is shown as a high value of the index. PRI is not an absolute value and cannot give an absolute classification of plasticity number of different natural rubber after oxidation.


General information

  • Status :  Published
    Publication date : 2017-08
  • Edition : 5
    Number of pages : 9
  • :
    ISO/TC 45/SC 3
    Raw materials (including latex) for use in the rubber industry
  • 83.040.10
    Latex and raw rubber

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