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BS ISO 2930:2017

BS ISO 2930:2017

$102.76

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

Published By Publication Date Number of Pages
BSI 2017 16
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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.

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 1 Scope
2 Normative references
3 Terms and definitions
8 4 Principle
5 Apparatus
9 6 Procedure
6.1 Preparation of test pieces
6.2 Ageing
6.3 Determination of plasticity
10 7 Expression of results
8 Precision
9 Test report
11 Annex A (informative) Air change in oven for PRI determination
13 Annex B (informative) Precision statement for plasticity retention index
15 Bibliography

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BS ISO 2930:2017
$102.76