NF ISO 11346

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Standards
NF ISO 11346

NF ISO 11346

December 2014

Standard Cancelled

Rubber, vulcanized or thermoplastic - Estimation of life-time and maximum temperature of use

ISO 11346:2014 specifies the principles and procedures for estimating the thermal endurance of rubbers from the results of exposure to elevated temperatures for long periods. Two approaches are specified: one using the Arrhenius relation; the other using the WLF equation. In ISO 11346:2014, the estimation of thermal endurance is based solely on the change in selected properties resulting from periods of exposure to elevated temperatures. The various properties of rubbers change at different rates on thermal ageing, hence comparisons between different rubbers can only be made using the same properties.

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Main informations

Collections

National standards and national normative documents

Publication date

December 2014

Number of pages

16 p.

Reference

NF ISO 11346

ICS Codes

83.060 Rubber

Classification index

T46-082

Print number

International kinship

ISO 11346:2014

Sumary

Rubber, vulcanized or thermoplastic - Estimation of life-time and maximum temperature of use

ISO 11346:2014 specifies the principles and procedures for estimating the thermal endurance of rubbers from the results of exposure to elevated temperatures for long periods.

Two approaches are specified: one using the Arrhenius relation; the other using the WLF equation.

In ISO 11346:2014, the estimation of thermal endurance is based solely on the change in selected properties resulting from periods of exposure to elevated temperatures. The various properties of rubbers change at different rates on thermal ageing, hence comparisons between different rubbers can only be made using the same properties.

Replaced standards (1)

NF ISO 11346

February 2006

Standard Cancelled

Rubber, vulcanized or thermoplastic - Estimation of life-time and maximum temperature of use

ISO 11346:2004 specifies the principles and procedures for estimating the thermal endurance of rubbers from the results of exposure to elevated temperatures for long periods. Two approaches are specified: <ol><li>one using the Arrhenius relation;</li><li>the other using the WLF equation.</li></ol> The estimation of thermal endurance is based solely on the change in selected properties resulting from periods of exposure to elevated temperatures. The various properties of rubbers change at different rates on thermal ageing, hence comparisons between different rubbers can only be made using the same properties.

Standard replaced by (1)

NF ISO 11346

July 2023

Standard Current

Rubber, vulcanized or thermoplastic - Estimation of life-time and maximum temperature of use

This document specifies the principles and procedures for estimating the thermal endurance of rubbers from the results of exposure to elevated temperatures for long periods. Two approaches are specified (see Introduction): — one using the Arrhenius equation; — the other using the WLF equation. In this document, the estimation of thermal endurance is based solely on the change in selected properties resulting from periods of exposure to elevated temperatures. The various properties of rubbers change at different rates on thermal ageing, hence comparison between different rubbers can only be made using the same properties.

Table of contents

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Avant-propos
iv
Introduction
v
1 Domaine d'application
1
2 Références normatives
1
3 Termes et définitions
1
4 Principe
2
5 Sélection des essais et de l'étuve de vieillissement
2
6 Sélection de la valeur limite
2
7 Éprouvettes
2
8 Températures
3
9 Temps d'exposition
3
10 Mode opératoire
4
11 Expression des résultats
4
12 Rapport d'essai
9
Bibliographie
11

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