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ISO 2930:2024

Raw, natural rubber — Determination of the plasticity retention index (PRI)

Jul 19, 2024

General information

60.60     Jul 19, 2024

ISO

ISO/TC 45/SC 3

International Standard

83.040.10  

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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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 2930:2017

NOW

PUBLISHED
ISO 2930:2024
60.60 Standard published
Jul 19, 2024