ISO 2930:2017

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

Publication date: Aug 30, 2017

General information

Current stage: 90.92 Effective date: Feb 7, 2023

Originator: ISO

Owner: ISO/TC 45/SC 3

Type: International Standard

ICS: 83.040.10

Languages: English French

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Status: Published

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Scope

ISO 2930:2017 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.

Life cycle

PREVIOUSLY

Revises
ISO 2930:2009

NOW

PUBLISHED
ISO 2930:2017
90.92 Standard to be revised
Feb 7, 2023

REVISED BY

IN_DEVELOPMENT
ISO/CD 2930

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