Rubber - Compatibility between hydraulic fluids and standard elastomeric materials

ISO 6072:2011 specifies test methods for evaluating the effect of hydraulic fluids on standard elastomeric materials that have been manufactured in accordance with specified processes. It allows baseline comparisons of fluids with standard elastomers. The standard provides formulations, mixing procedures and vulcanization procedures for five types of elastomeric composition: acrylonitrile-butadiene rubbers (NBR 1 and NBR 2), fluorocarbon rubber (FKM 2), ethylene propylene diene rubber (EPDM 1) and hydrogenated acrylonitrile-butadiene rubber (HNBR 1). These procedures evaluate the effect of mineral-based, fire-resistant and biodegradable hydraulic fluids on such compositions by measurement, under controlled conditions, of physical properties of standard test pieces of the elastomer before and after immersion in the fluids. The standard does not provide formulations of elastomeric materials for actual service, although service elastomers may be tested using these compatibility procedures if required.

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Main informations

Collections

National standards and national normative documents

Publication date

February 2012

Number of pages

25 p.

Reference

NF ISO 6072

ICS Codes

23.100.01 Fluid power systems in general

75.120 Hydraulic fluids

83.060 Rubber

Classification index

E48-610

Print number

1 - 25/01/2012

International kinship

ISO 6072:2011

Sumary

Rubber - Compatibility between hydraulic fluids and standard elastomeric materials

The standard provides formulations, mixing procedures and vulcanization procedures for five types of elastomeric composition: acrylonitrile-butadiene rubbers (NBR 1 and NBR 2), fluorocarbon rubber (FKM 2), ethylene propylene diene rubber (EPDM 1) and hydrogenated acrylonitrile-butadiene rubber (HNBR 1).

These procedures evaluate the effect of mineral-based, fire-resistant and biodegradable hydraulic fluids on such compositions by measurement, under controlled conditions, of physical properties of standard test pieces of the elastomer before and after immersion in the fluids.

The standard does not provide formulations of elastomeric materials for actual service, although service elastomers may be tested using these compatibility procedures if required.

Replaced standards (2)

NF E48-610-1

December 2004

Standard Cancelled

Hydraulic fluid power - Compatibility between fluids and standard elastomeric materials - Part 1 : formulation and preparation of test elastomers

Le présent document concerne les essais de compatibilité du couple fluide/caoutchouc dans les systèmes de transmissions hydrauliques. Il définit les formulations et les méthodes de mélange et de vulcanisation pour trois types de caoutchoucs d'essai.

NF E48-610-2

December 2004

Standard Cancelled

Hydraulic fluid power - Compatibility between fluids and standard elastomeric materials - Part 2 : test methods

Le présent document constitue la deuxième partie de la NF E 48-610, concernant les essais de compatibilité du couple fluide/caoutchouc dans les systèmes de transmissions hydrauliques. Il définit les méthodes d'essai permettant d'évaluer l'effet des fluides hydrauliques sur les caoutchoucs.

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
2
4 Élastomères d'essai
2
4.1 Généralités
2
4.2 Caoutchouc butadiène-nitrile acrylique de référence avec teneur en nitrile acrylique de 28 (NBR 1)
2
4.3 Caoutchouc butadiène-nitrile acrylique de référence avec teneur en nitrile acrylique de 34 (NBR 2)
4
4.4 Caoutchouc fluoré de référence (FKM 2)
5
4.5 Caoutchouc éthylène-propylène-diène vulcanisé au peroxyde de référence (EPDM 1)
7
4.6 Caoutchouc butadiène-nitrile acrylique hydrogéné de référence avec teneur en nitrile acrylique de 35 % (HNBR 1)
8
5 Système de désignation pour l'indice de compatibilité des caoutchoucs (ECI)
10
6 Détermination de l'ECI
10
6.1 Conditions d'essai
10
6.2 Détermination de la variation de volume, de la variation de dureté et de la variation de la résistance à la traction et de l'allongement à la rupture
12
7 Rapport d'essai
12
8 Phrase d'identification (référence à la présente Norme internationale)
13
Annexe A (informative) Informations complémentaires relatives aux fluides hydrauliques et aux types d'élastomères utilisés avec ceux-ci
14
Annexe B (informative) Exemple de rapport d'essai - Indice de compatibilité fluide-élastomère (ECI).16
Annexe C (informative) Méthode rapide pour indiquer, par mesurage de l'indice de variation de volume (VCI), la variation de volume de caoutchoucs du commerce traités avec des huiles minérales
17
Bibliographie
19

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