ISO 2930:2024
International Standard
Current Edition
·
Approved on
19 July 2024
Raw, natural rubber — Determination of the plasticity retention index (PRI)
ISO 2930:2024 Files
English
9 Pages
Current Edition
OMR
31.44
ISO 2930:2024 Scope
This document specifies a method to determine 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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