BS ISO 2930:2017
Current
The latest, up-to-date edition.
Rubber, raw natural. Determination of plasticity retention index (PRI)
Hardcopy , PDF
English
09-18-2017
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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