EN ISO 8031:2020

SLOVENSKI STANDARD
01-oktober-2020
Nadomešča:
SIST EN ISO 8031:2010
Gumene in polimerne cevi ter cevni priključki - Ugotavljanje električne upornosti in
prevodnosti (ISO 8031:2020)
Rubber and plastics hoses and hose assemblies - Determination of electrical resistance
and conductivity (ISO 8031:2020)
Gummi- und Kunststoffschläuche und Schlauchleitungen - Bestimmung des elektrischen
Widerstands und der elektrischen Leitfähigkeit (ISO 8031:2020)
Tuyaux et flexibles en caoutchouc et en plastique - Détermination de la résistance et de
la conductivité électriques (ISO 8031:2020)
Ta slovenski standard je istoveten z: EN ISO 8031:2020
ICS:
23.040.70 Gumene cevi in armature Hoses and hose assemblies
83.140.40 Gumene cevi Hoses
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 8031
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2020
EUROPÄISCHE NORM
ICS 23.040.70 Supersedes EN ISO 8031:2009
English Version
Rubber and plastics hoses and hose assemblies -
Determination of electrical resistance and conductivity
(ISO 8031:2020)
Tuyaux et flexibles en caoutchouc et en plastique - Gummi- und Kunststoffschläuche und
Détermination de la résistance et de la conductivité Schlauchleitungen - Bestimmung des elektrischen
électriques (ISO 8031:2020) Widerstands und der elektrischen Leitfähigkeit (ISO
8031:2020)
This European Standard was approved by CEN on 12 June 2020.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8031:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 8031:2020) has been prepared by Technical Committee ISO/TC 45 "Rubber and
rubber products" in collaboration with Technical Committee CEN/TC 218 “Rubber and plastics hoses
and hose assemblies” the secretariat of which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by January 2021, and conflicting national standards shall
be withdrawn at the latest by January 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 8031:2009.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 8031:2020 has been approved by CEN as EN ISO 8031:2020 without any modification.

INTERNATIONAL ISO
STANDARD 8031
Fourth edition
2020-06
Rubber and plastics hoses and hose
assemblies — Determination of
electrical resistance and conductivity
Tuyaux et flexibles en caoutchouc et en plastique — Détermination de
la résistance et de la conductivité électriques
Reference number
ISO 8031:2020(E)
©
ISO 2020
ISO 8031:2020(E)
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
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below or ISO’s member body in the country of the requester.
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Published in Switzerland
ii © ISO 2020 – All rights reserved

ISO 8031:2020(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Measurement of resistance of conductive, antistatic and non-conductive hoses .1
4.1 General . 1
4.2 Apparatus . 1
4.2.1 Test instruments . 1
4.2.2 Electrodes and contacts . 2
4.3 Preparation and cleaning for the test . 3
4.4 Conditioning . 4
4.5 Procedure for hoses with conducting lining (on full hose length) . 4
4.6 Procedure for hoses with conducting cover . 4
4.6.1 Method for full hose lengths . 4
4.6.2 Method for test pieces as tested in the laboratory . 5
4.7 Procedure for hoses with conducting compounds throughout . 6
4.7.1 Method for hoses up to 6 m in length . 6
4.7.2 Method for hoses over 6 m in length . 6
4.8 Hose assemblies fitted with metal end fittings . 6
4.9 Test procedure to determine the electrical resistance through the wall of hoses
and hose assemblies . 7
4.9.1 General. 7
4.9.2 Test procedure for hoses (without end fittings). 7
4.9.3 Test procedure for hose assemblies with metallic end fittings but without
an internal wire helix in contact with the end fittings . 8
5 Measurement of electrical continuity between metal end fittings of hose assemblies .10
6 Measurement of electrical discontinuity of hose assemblies .10
7 Measurement of electrical resistance of a hose assembly lining (conductive or static
dissipating) or hose assembly cover (conductive or static dissipating) in contact
with the metal end fitting .11
7.1 General .11
7.2 Apparatus .11
7.3 Preparation and cleaning for the test .11
7.4 Conditioning .11
7.5 Test procedure .11
8 Test report .13
Annex A (informative) Recommended terminology and limits for electrical conductivity
and resistance .15
ISO 8031:2020(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
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ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
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iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 45, Rubber and rubber produ
...