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  • BS ISO 2930:2017

    Current The latest, up-to-date edition.

    Rubber, raw natural. Determination of plasticity retention index (PRI)

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  18-09-2017

    Publisher:  British Standards Institution

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    This document 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.

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    Committee PRI/50
    Development Note Supersedes & renumbers BS 903-A59.59.2(1997). Supersedes BS 903-A59(1990), 92/42292 DC & 07/30166152 DC. (10/2009) Supersedes 16/30317723 DC. (10/2017)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO 23529:2016 Rubber General procedures for preparing and conditioning test pieces for physical test methods
    ISO 1795:2017 Rubber, raw natural and raw synthetic — Sampling and further preparative procedures
    ISO 2007:2007 Rubber, unvulcanized Determination of plasticity Rapid-plastimeter method
    ISO 2393:2014 Rubber test mixes — Preparation, mixing and vulcanization — Equipment and procedures
    ISO/TR 9272:2005 Rubber and rubber products Determination of precision for test method standards
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