EN ISO 8308:2015

SLOVENSKI STANDARD
01-januar-2016
1DGRPHãþD
SIST EN ISO 8308:2009
*XPHQHLQSROLPHUQHFHYLWHUFHYRYRGL8JRWDYOMDQMHSUHQRVDWHNRþLQVNR]LVWHQH
FHYLLQVWHQHFHYRYRGRY,62
Rubber and plastics hoses and tubing - Determination of transmission of liquids through
hose and tubing walls (ISO 8308:2015)
Gummi- und Kunststoffschläuche mit und ohne Einlagen - Bestimmung der
Durchlässigkeit von Schlauchwandungen gegenüber Flüssigkeiten (ISO 8308:2015)
Tuyaux et tubes en caoutchouc et en plastique - Détermination de la transmission des
liquides à travers les parois des tuyaux et des tubes (ISO 8308:2015)
Ta slovenski standard je istoveten z: EN ISO 8308:2015
ICS:
23.040.70 Gumene cevi in armature Hoses and hose assemblies
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 8308
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2015
EUROPÄISCHE NORM
ICS 23.040.70 Supersedes EN ISO 8308:2008
English Version
Rubber and plastics hoses and tubing - Determination of
transmission of liquids through hose and tubing walls (ISO
8308:2015)
Tuyaux et tubes en caoutchouc et en plastique - Gummi- und Kunststoffschläuche mit und ohne
Détermination de la transmission des liquides à travers Einlagen - Bestimmung der Durchlässigkeit von
les parois des tuyaux et des tubes (ISO 8308:2015) Schlauchwandungen gegenüber Flüssigkeiten (ISO
8308:2015)
This European Standard was approved by CEN on 29 August 2015.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8308:2015 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 8308:2015) 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 April 2016, and conflicting national standards shall be
withdrawn at the latest by April 2016.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document supersedes EN ISO 8308:2008.
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, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 8308:2015 has been approved by CEN as EN ISO 8308:2015 without any modification.
INTERNATIONAL ISO
STANDARD 8308
Fourth edition
2015-10-01
Rubber and plastics hoses and
tubing — Determination of
transmission of liquids through hose
and tubing walls
Tuyaux et tubes en caoutchouc et en plastique — Détermination de la
transmission des liquides à travers les parois des tuyaux et des tubes
Reference number
ISO 8308:2015(E)
©
ISO 2015
ISO 8308:2015(E)
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, 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 on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2015 – All rights reserved

ISO 8308:2015(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Principle . 1
3.1 Method A . 1
3.2 Method B . 1
4 Test liquid . 1
5 Method A . 2
5.1 Apparatus . 2
5.2 Test pieces . 2
5.3 Test temperature . 3
5.4 Test pressure. 3
5.5 Procedure . 3
5.6 Expression of results . 3
5.7 Test report . 4
6 Method B . 4
6.1 Apparatus . 4
6.2 Test piece . 5
6.3 Test temperature . 5
6.4 Procedure . 5
6.5 Expression of results . 6
6.6 Test report . 7
ISO 8308:2015(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
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
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).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 45, Rubber and rubber products, Subcommittee
SC 1, Hoses (rubber and plastics).
This fourth edition cancels and replaces the third edition (ISO 8308:2006), which has been technically
revised with changes in Clause 1, 5.2, 5.4, 5.7 b) and 6.6 b).
iv © ISO 2015 – All rights reserved

INTERNATIONAL STANDARD ISO 8308:2015(E)
Rubber and plastics hoses and tubing — Determination of
transmission of liquids through hose and tubing walls
1 Scope
This International Standard specifies two methods for the determination of transmission of liquids
through hose and tubing walls. Both methods are applicable to rubber and plastics hose and tubing,
and comprise:
— method A, for all hose and tubing sizes and constructions: a practical comparative test, simulating
working conditions;
— method B, for hose and tubing up to 16 mm inside diameter.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 4671, Rubber and plastics hoses and hose assemblies — Methods of measurement of the dimensions of
hoses and the lengths of hose assemblies
ISO 4788, Laboratory glassware — Graduated measuring cylinders
ISO 23529, Rubber — General procedures for preparing and conditioning test pieces for physical test methods
3 Principle
3.1 Method A
This method is carried out on an assembly mounted in a test apparatus fitted with equipment to fill
and measure a charged volume of a volatile liquid. The system is put under pressure, and the change in
volume measured at 24 h intervals until the change has become constant with time, i.e
...