EN ISO 8331:2011
(Main)Rubber and plastics hoses and hose assemblies - Guidelines for selection, storage, use and maintenance (ISO 8331:2007)
Rubber and plastics hoses and hose assemblies - Guidelines for selection, storage, use and maintenance (ISO 8331:2007)
ISO 8331:2007 sets out recommendations designed to maintain rubber and plastics hoses and hose assemblies, prior to use, in a condition as close as possible to the condition they were in when they were received and to obtain the expected service life.
Gummi- und Kunststoffschläuche und Schlauchleitungen - Richtlinien für die Auswahl, Lagerung, Verwendung und Wartung (ISO 8331:2007)
Diese Internationale Norm gibt Empfehlungen, die dazu ausgelegt sind, um Gummi- und Kunststoffschläuche sowie Schlauchleitungen vor der Verwendung unter Bedingungen instand zu halten, die soweit möglich den Bedingungen bei Lieferung entsprechen sollen, und um die erwartete Betriebsdauer zu erreichen. ANMERKUNG Es ist vorgesehen, dass diese Internationale Norm gemeinsam mit geltenden nationalen gesetzlichen Vorschriften angewendet wird.
Tuyaux et flexibles en caoutchouc et en plastique - Lignes directrices pour la sélection, le stockage, l'utilisation et la maintenance (ISO 8331:2007)
L'ISO 8331:2007 établit des recommandations pour conserver les tuyaux et flexibles en caoutchouc et en plastique, avant leur utilisation, dans un état aussi proche que possible de leur état lors de la réception et pour obtenir la durée de vie prévue.
Gumene in polimerne cevi ter cevni priključki - Smernice za izbiro, skladiščenje, uporabo in vzdrževanje (ISO 8331:2007)
Ta mednarodni standard določa priporočila za vzdrževanje gumenih in polimernih cevi ter cevnih priključkov pred uporabo v stanju, ki je čim bolj podobno stanju, v katerem so bili ob prevzemu, in doseganju pričakovane življenjske dobe.
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2012
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Rubber and plastics hoses and hose assemblies - Guidelines for selection, storage, use
and maintenance (ISO 8331:2007)
Gummi- und Kunststoffschläuche und Schlauchleitungen - Richtlinien für die Auswahl,
Lagerung, Verwendung und Wartung (ISO 8331:2007)
Tuyaux et flexibles en caoutchouc et en plastique - Lignes directrices pour la sélection, le
stockage, l'utilisation et la maintenance (ISO 8331:2007)
Ta slovenski standard je istoveten z: EN ISO 8331:2011
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 8331
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2011
ICS 23.040.70
English Version
Rubber and plastics hoses and hose assemblies - Guidelines for
selection, storage, use and maintenance (ISO 8331:2007)
Tuyaux et flexibles en caoutchouc et en plastique - Lignes Gummi- und Kunststoffschläuche und Schlauchleitungen -
directrices pour la sélection, le stockage, l'utilisation et la Richtlinien für die Auswahl, Lagerung, Verwendung und
maintenance (ISO 8331:2007) Wartung (ISO 8331:2007)
This European Standard was approved by CEN on 15 April 2011.
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, 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
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8331:2011: E
worldwide for CEN national Members.
Contents Page
Foreword .3
Foreword
The text of ISO 8331:2007 has been prepared by Technical Committee ISO/TC 45 “Rubber and rubber
products” of the International Organization for Standardization (ISO) and has been taken over as
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 November 2011, and conflicting national standards shall be withdrawn
at the latest by November 2011.
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.
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, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 8331:2007 has been approved by CEN as a EN ISO 8331:2011 without any modification.
INTERNATIONAL ISO
STANDARD 8331
Second edition
2007-05-01
Rubber and plastics hoses and hose
assemblies — Guidelines for selection,
storage, use and maintenance
Tuyaux et flexibles en caoutchouc et en plastique — Lignes directrices
pour la sélection, le stockage, l'utilisation et la maintenance
Reference number
ISO 8331:2007(E)
©
ISO 2007
ISO 8331:2007(E)
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©
ii ISO 2007 – All rights reserved
ISO 8331:2007(E)
Contents Page
1 Scope . 1
2 Normative references . 1
3 General recommendations . 1
3.1 Selection criteria . 1
3.2 Storage conditions . 2
3.3 Use and maintenance . 4
4 Additional recommendations for specific applications . 6
4.1 General . 6
4.2 Welding and gas-cutting hoses . 6
4.3 Steam hoses . 6
4.4 Hoses for the conveyance of foodstuffs and drinking water . 7
4.5 Hoses for the conveyance of abrasive products . 7
4.6 Hoses for the conveyance of corrosive or aggressive products . 7
4.7 Hoses for the conveyance of flammable products . 7
4.8 Automotive hoses . 8
4.9 Hydraulic hoses . 8
4.10 Fire-fighting hoses . 8
4.11 Oil-industry hoses and hose assemblies . 10
Bibliography . 12
©
ISO 2007 – All rights reserved iii
ISO 8331:2007(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 8331 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee SC 1,
Hoses (rubber and plastics).
This second edition cancels and replaces the first edition (ISO 8331:1991), which has been technically revised.
©
iv ISO 2007 – All rights reserved
INTERNATIONAL STANDARD ISO 8331:2007(E)
Rubber and plastics hoses and hose assemblies — Guidelines
for selection, storage, use and maintenance
1Scope
This International Standard sets out recommendations designed to maintain rubber and plastics hoses and
hose assemblies, prior to use, in a condition as close as possible to the condition they were in when they were
received and to obtain the expected service life.
NOTE It is intended that this International Standard be used in conjunction with any applicable national statutory
regulations.
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 1402, Rubber and plastics hoses and hose assemblies — Hydrostatic testing
ISO 2230, Rubber products — Guidelines for storage
ISO 8031, Rubber and plastics hoses and hose assemblies — Determination of electrical properties
ISO/TR 17165-2, Hydraulic fluid power — Hose assemblies — Part 2: Recommended practices for hydraulic
hose assemblies
3 General recommendations
3.1 Selection criteria
It is in the best interests of the user to select hoses or hose assemblies complying with national or international
standards whenever such standards exist for the intended application. For applications outside the scope of
such standards, needing special requirements or for which the necessary information is not available, the hose
manufacturer or trade association should be consulted.
The following points should be taken into consideration when selecting a hose or hose assembly for a specific
application:
a) Operational environment:
— ambient temperature;
— atmospheric conditions;
— contact with chemically aggressive liquids;
— contact with other deleterious media.
©
ISO 2007 – All rights reserved 1
ISO 8331:2007(E)
b) Media conveyed:
—liquid;
— gaseous;
—solids;
— combinations of the above.
c) Method of conveyance:
— pressure (including rate of flow);
— suction (including rate of flow);
— gravity (including rate of flow);
— assisted (mixture of solid/fluid, solid/air).
d) Operating conditions:
— pressure and temperature of product conveyed;
— frequency of use.
e) Installation:
— degree of curvature (minimum bend radius);
— vibration of system;
— risk of damage by impact and abrasion;
— use of correct type of connection;
— type of movement and frequency.
3.2 Storage conditions
3.2.1 General
During storage, especially for long periods, and when hoses and hose assemblies are exposed to certain
adverse influences, the physical properties of hoses and hose assemblies can undergo changes that may result
in them no longer having the optimum characteristics corresponding to their application when they are put into
service. The storage conditions should be such as will offer maximum protection and minimize deterioration of
the articles during storage.
3.2.2 Storage period
The storage period should be kept to a minimum. Rotation of stock is therefore essential and the “first-in
first-out” rule applied. For long-term storage, refer to ISO 2230 for storage time and conditions. Items 3.2.3 to
3.2.8 are covered in ISO 2230 and are shown here for convenience only.
3.2.3 Temperature
◦
The storage temperature should be below 25 C and articles stored away from direct heat sources. Storage
◦ ◦
above 25 C may shorten the life of the hose.
...
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