EN ISO 5771:2024

Rubber hoses and hose assemblies for transferring anhydrous ammonia - Specification (ISO 5771:2024)

This document specifies the minimum requirements for rubber hoses used for transferring ammonia, in liquid or in gaseous form, at ambient temperatures from −40 °C up to and including +55 °C at a working pressure of 2,5 MPa (25 bar). It does not include specifications for end fittings and is limited to the performance of the hoses and hose assemblies.

Gummischläuche und -schlauchleitungen für den Transport von wasserfreiem Ammoniak - Anforderungen (ISO 5771:2024)

Dieses Dokument legt Mindestanforderungen an Gummischläuche fest, die bei Umgebungstemperaturen zwischen −40 °C und +55 °C bei einem Betriebsdruck von 2,5 MPa (25 bar) zum Transport von flüssigem oder gasförmigen Ammoniak verwendet werden. Nicht eingeschlossen sind Anforderungen an Armaturen; die Norm gilt nur für Schläuche und Schlauchleitungen.
WARNUNG   Anwender dieses Dokuments sollten mit der üblichen Laborpraxis vertraut sein. Dieses Dokument erhebt nicht den Anspruch, dass alle mit seiner Anwendung verbundenen Sicherheitsprobleme, soweit diese gegeben sind, angesprochen werden. Es liegt in der Verantwortung des Anwenders, angemessene Sicherheits- und Schutzmaßnahmen zu treffen und sämtliche anwendbare nationale Festlegungen zu bestimmen.
ACHTUNG   Das gesamte Personal, das mit wasserfreiem Ammoniak und seinen Liefersystemen arbeitet, sollte im Umgang damit vertraut sein und notwendige Sicherheitsanweisungen befolgen um die Gefahr für Personen- und Sachschäden zu minimieren. Schlauchleitungen für die Verwendung mit wasserfreiem Ammoniak nicht bei Temperaturen und Drücken oberhalb der vom Schlauchhersteller empfohlenen Temperaturen und Drücke benutzen. Niemals einen Schlauch für wasserfreies Ammoniak abkuppeln. Schläuche, die nach dieser Spezifikation hergestellt werden, sind nur für den Gebrauch mit wasserfreiem Ammoniak zu verwenden.

Tuyaux et flexibles en caoutchouc pour le transfert d'ammoniac anhydre - Spécifications (ISO 5771:2024)

Le présent document spécifie les exigences minimales relatives aux tuyaux en caoutchouc utilisés pour le transfert d'ammoniac sous forme gazeuse ou sous forme liquide à des températures ambiantes de −40 °C à +55 °C compris à une pression de service de 2,5 MPa (25 bar). Il ne contient pas de spécifications relatives aux extrémités de raccordement et se limite à la performance des tuyaux et des assemblages flexibles.

Gumene cevi ter cevni priključki za prenos brezvodnega amoniaka - Specifikacija (ISO 5771:2024)

General Information

• Status: Published
• Publication Date: 23-Apr-2024
• ICS: 23.040.70 - Hoses and hose assemblies
• ICS: 71.120.99 - Other equipment for the chemical industry
• ICS: 83.140.40 - Hoses
• Technical Committee: CEN/TC 218 - Rubber and plastics hoses and hose assemblies
• Drafting Committee: CEN/TC 218 - Rubber and plastics hoses and hose assemblies
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 24-Apr-2024
• Completion Date: 24-Apr-2024
• Ref Project: SIST EN ISO 5771:2024 - Rubber hoses and hose assemblies for transferring anhydrous ammonia - Specification (ISO 5771:2024)

Relations

• Replaces: EN ISO 5771:2008 - Rubber hoses and hose assemblies for transferring anhydrous ammonia - Specification (ISO 5771:2008)
• Effective Date: 18-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2024
Gumene cevi ter cevni priključki za prenos brezvodnega amoniaka - Specifikacija
(ISO 5771:2024)
Rubber hoses and hose assemblies for transferring anhydrous ammonia - Specification
(ISO 5771:2024)
Gummischläuche und -schlauchleitungen für den Transport von wasserfreiem Ammoniak
- Anforderungen (ISO 5771:2024)
Tuyaux et flexibles en caoutchouc pour le transfert d'ammoniac anhydre - Spécifications
(ISO 5771:2024)
Ta slovenski standard je istoveten z: EN ISO 5771:2024
ICS:
83.140.40 Gumene cevi Hoses
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 5771
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2024
EUROPÄISCHE NORM
ICS 71.120.99; 83.140.40 Supersedes EN ISO 5771:2008
English Version
Rubber hoses and hose assemblies for transferring
anhydrous ammonia - Specification (ISO 5771:2024)
Tuyaux et flexibles en caoutchouc pour le transfert Gummischläuche und -schlauchleitungen für den
d'ammoniac anhydre - Spécifications (ISO 5771:2024) Transport von wasserfreiem Ammoniak -
Anforderungen (ISO 5771:2024)
This European Standard was approved by CEN on 19 April 2024.

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, Türkiye 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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 5771:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 5771:2024) 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 October 2024, and conflicting national standards shall
be withdrawn at the latest by October 2024.
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 5771:2008.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 5771:2024 has been approved by CEN as EN ISO 5771:2024 without any modification.

International
Standard
ISO 5771
Fourth edition
Rubber hoses and hose assemblies
2024-04
for transferring anhydrous
ammonia — Specification
Tuyaux et flexibles en caoutchouc pour le transfert d'ammoniac
anhydre — Spécifications
Reference number
ISO 5771:2024(en) © ISO 2024
ISO 5771:2024(en)
© ISO 2024
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 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
ISO 5771:2024(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3  Terms and definitions . 1
4 Pressure rating . 2
5 Materials and construction . 2
5.1 Lining .2
5.2 Reinforcement .2
5.3 Cover .2
5.4 Hose assemblies .2
6 Dimensions . 3
6.1 Inside diameters and tolerances .3
6.2 Outside diameter .3
6.3 Concentricity .3
6.4 Tolerances on length.3
7 Physical properties . 3
7.1 Rubber compounds .3
7.2 Finished hose .4
7.3 Ammonia resistance tests .4
7.3.1 Test lengths .5
7.3.2 Ammonia conditioning .5
7.3.3 Flexing of conditioned hose .7
7.3.4 Burst-pressure test on conditioned and flexed hoses .8
7.3.5 Physical-property tests on conditioned and flexed hoses .8
8 Hose assembly delivery test and annual in-use test requirements . 8
9 Frequency of testing . . 8
10 Marking . . 9
11 Packaging and storage . 9
12  Test certificate . 9
Annex A (normative) Type frequency for type tests and routine tests .10
Annex B (informative) Recommendations for the lengths of hoses supplied in bulk and
for tolerances on the lengths of hose assemblies .12
Bibliography .13

iii
ISO 5771:2024(en)
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
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ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
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