SIST EN ISO 4080:2010

SLOVENSKI STANDARD
01-februar-2010
1DGRPHãþD
SIST EN ISO 4080:2000
SIST EN ISO 4080:2000/AC:2000
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,62
Rubber and plastics hoses and hose assemblies - Determination of permeability to gas
(ISO 4080:2009)
Gummi- und Kuntstoffschläuche und -schlauchleitungen - Bestimmung der
Gasdurchlässigkeit (ISO 4080:2009)
Tuyaux et flexibles en caoutchouc et en plastique - Détermination de la perméabilité au
gaz (ISO 4080:2009)
Ta slovenski standard je istoveten z: EN ISO 4080:2009
ICS:
83.140.40 Gumene cevi Hoses
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 4080
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2009
ICS 23.040.70 Supersedes EN ISO 4080:1995
English Version
Rubber and plastics hoses and hose assemblies - Determination
of permeability to gas (ISO 4080:2009)
Tuyaux et flexibles en caoutchouc et en plastique - Gummi- und Kuntstoffschläuche und -schlauchleitungen -
Détermination de la perméabilité au gaz (ISO 4080:2009) Bestimmung der Gasdurchlässigkeit (ISO 4080:2009)
This European Standard was approved by CEN on 19 September 2009.

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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4080:2009: E
worldwide for CEN national Members.

Contents Page
Foreword .3

Foreword
This document (EN ISO 4080:2009) 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 June 2010, and conflicting national standards shall be withdrawn at
the latest by June 2010.
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 4080:1995.
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, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 4080:2009 has been approved by CEN as a EN ISO 4080:2009 without any modification.

INTERNATIONAL ISO
STANDARD 4080
Fourth edition
2009-12-15
Rubber and plastics hoses and hose
assemblies — Determination of
permeability to gas
Tuyaux et flexibles en caoutchouc et en plastique — Détermination
de la perméabilité au gaz
Reference number
ISO 4080:2009(E)
©
ISO 2009
ISO 4080:2009(E)
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ii © ISO 2009 – All rights reserved

ISO 4080:2009(E)
Contents Page
Foreword .iv
1 Scope.1
2 Normative references.1
3 Terms and definitions .1
4 Test pieces .2
5 Conditioning of test pieces .2
6 Test temperature .2
7 Test gas .2
8 Test pressure .2
9 Apparatus.2
10 Procedure.3
11 Expression of results.6
12 Test report.7

ISO 4080:2009(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 4080 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee
SC 1, Hoses (rubber and plastics).
This fourth edition cancels and replaces the third edition (ISO 4080:1991), which has been technically revised
to clarify the test method procedures and to standardize the units in the expression of results clause for
method 1 and method 2. It also incorporates the Technical Corrigendum ISO 4080:1991/Cor.2:1998.

iv © ISO 2009 – All rights reserved

INTERNATIONAL STANDARD ISO 4080:2009(E)

Rubber and plastics hoses and hose assemblies —
Determination of permeability to gas
WARNING — Persons using this International Standard should be familiar with normal laboratory
practice. This standard does not purport to address all of the safety problems, if any, associated with
its use. It is the responsibility of the user to establish appropriate safety and health practices and to
ensure compliance with any national regulatory conditions.
1 Scope
This International Standard specifies three methods for the determination of the volume of gas diffusing
through a rubber or plastics hose or length of tubing in a specified time.
Method 1: For determining the permeability of the complete hose or length of tubing, excluding end-
fittings, to the test gas. The permeability is calculated with respect to the length of the hose or tubing.
Method 2: For determining the permeability at the hose/fitting interface. This method is used when
determining the permeability characteristics of hoses with an unpricked cover, when the gas usually
issues from the textile reinforcement at the cut ends. The permeability is calculated with respect to the
length of the hose.
Method 3: For determining precisely the permeability of a hose or hose assembly to the test gas. The
permeability is calculated with respect to the surface area of the hose lining.
The methods are applicable only to gases which are insoluble in water.
NOTE 1 Although the results are expressed in the same units for methods 1 and 2, the results obtained will not
necessarily be comparable in the case of unpricked and pricked hoses intended for the same application as the test times
specified are different and the permeability could therefore vary.
NOTE 2 Method 3 is the preferred method.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 8330, Rubber and plastics hoses and hose assemblies — Vocabulary
ISO 23529, Rubber — General procedures for preparing and conditioning test pieces for physical test
methods
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 8330 apply.
ISO 4080:2009(E)
4 Test pieces
4.1 Method 1
The test piece shall be a length of hose or tubing long enough to ensure that the length of the exposed hose
or tubing under the gas-collecting trough is 1 m.
NOTE The cover of a hose test piece may be pricked.
4.2 Method 2
The test piece shall be a length of unpricked hose or tubing fitted with end couplings. It shall have a free
length of 1 m between the couplings.
NOTE The type of coupling used and the method by which the couplings are fixed to the test piece can affect the
results obtained using this method.
4.3 Method 3
The test piece shall be a length of unpricked hose fitted with end couplings. It shall have a free length of 0,5 m
between the couplings.
5 Conditioning of test pieces
No test shall be carried out within 24 h of manufacture. Before testing, the test pieces shall be conditioned, in
accordance with ISO 23529, for at least 3 h at the specified temperature and humidity.
6 Test temperature
Unless otherwise specified in the product standard, the test shall be carried out at a temperature of
23 °C ± 2 °C.
7 Test gas
The test gas shall be as specified in the product standard.
8 Test pressure
Unless otherwise specified in the product standard, the test shall be carried out at a gas pressure of 1 MPa
(10 bar).
9 Apparatus
NOTE Schematic layouts of the test arrangements for the three test methods are shown in Figures 1 to 3.
9.1 Water bath, capable of being maintained at a specified temperature and of sufficient length to
accommodate the test piece.
9.2 Gas supply, provided with a suitable pressure gauge and emergency excess flow shutoff valves in
case of test piece failure.
2 © ISO 2009 – All rights reserved
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