ISO 2930
Rubber, raw natural - Determination of plasticity retention index (PRI)
| Organization: | ISO |
| Publication Date: | 1 August 2017 |
| Status: | active |
| Page Count: | 14 |
| ICS Code (Latex and raw rubber): | 83.040.10 |
scope:
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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