EN ISO 21012:2024
(Main)Cryogenic vessels - Hoses (ISO 21012:2024)
Cryogenic vessels - Hoses (ISO 21012:2024)
This document specifies design, construction, type and production testing, and marking requirements for both non-insulated cryogenic flexible hoses and insulated vacuum jacketed hoses used for the transfer of cryogenic fluids within the following range of operating conditions:
— working temperature range: from −270 °C to +65 °C;
— nominal size (DN): from 10 to 100.
End fittings for mounting of any couplings are within the scope of this document, but the couplings are subject to other standards.
Kryo-Behälter - Schlauchleitungen (ISO 21012:2024)
Dieses Dokument legt die Auslegung, den Bau, die Baumuster und Produktionsprüfung sowie Anforderungen hinsichtlich der Kennzeichnung sowohl von nichtisolierten flexiblen Kryo-Schläuchen auch isolierten vakuumummantelten Schläuchen fest, die bei der Übertragung tiefkalter Fluide im folgenden Bereich von Betriebsbedingungen verwendet werden:
- Arbeitstemperaturbereich: von −270 °C bis +65 °C;
- Nennweite (DN): von 10 bis 100.
Anschlussverschraubungen für die Montage von Kupplungen fallen in den Anwendungsbereich dieses Dokuments, die Kupplungen selbst sind jedoch Gegenstand anderer Normen.
Récipients cryogéniques - Tuyaux flexibles (ISO 21012:2024)
Le présent document définit la conception, le type et les tests de production ainsi que les exigences de marquage applicables à la fois aux tuyaux flexibles cryogéniques non isolés et aux tuyaux à double enveloppe sous vide utilisés pour le passage des fluides cryogéniques dans la plage de conditions de fonctionnement suivante :
— plage de température de service : entre − 270 °C et + 65 °C ;
— diamètre nominal (DN) : entre 10 et 100.
Les pièces d’extrémité de montage d’un couplage quelconque relèvent du domaine d’application du présent document ; néanmoins, les couplages sont couverts par d’autres normes.
Kriogene posode - Gibke cevi (ISO 21012:2024)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2024
Nadomešča:
SIST EN ISO 21012:2019
Kriogene posode - Gibke cevi (ISO 21012:2024)
Cryogenic vessels - Hoses (ISO 21012:2024)
Kryo-Behälter - Schlauchleitungen (ISO 21012:2024)
Récipients cryogéniques - Tuyaux flexibles (ISO 21012:2024)
Ta slovenski standard je istoveten z: EN ISO 21012:2024
ICS:
23.020.40 Proti mrazu odporne posode Cryogenic vessels
(kriogenske posode)
83.140.40 Gumene cevi Hoses
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 21012
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2024
EUROPÄISCHE NORM
ICS 23.020.40; 83.140.40 Supersedes EN ISO 21012:2018
English Version
Cryogenic vessels - Hoses (ISO 21012:2024)
Récipients cryogéniques - Tuyaux flexibles (ISO Kryo-Behälter - Schlauchleitungen (ISO 21012:2024)
21012:2024)
This European Standard was approved by CEN on 29 March 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 NORMALISATIO N
E U R OP ÄISCHES KOMITEE FÜR NORMUN G
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 21012:2024 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2014/68/EU (Pressure Equipment Directive) aimed to be
covered. 4
European foreword
This document (EN ISO 21012:2024) has been prepared by Technical Committee ISO/TC 220
"Cryogenic vessels" in collaboration with Technical Committee CEN/TC 268 “Cryogenic vessels and
specific hydrogen technologies applications” the secretariat of which is held by AFNOR.
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 March 2025, and conflicting national standards shall
be withdrawn at the latest by March 2025.
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 21012:2018.
This document has been prepared under a standardization request addressed to CEN by the European
Commission. The Standing Committee of the EFTA States subsequently approves these requests for its
Member States.
For the relationship with EU Legislation, see informative Annex ZA, which is an integral part of this
document.
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 21012:2024 has been approved by CEN as EN ISO 21012:2024 without any modification.
Annex ZA
(informative)
Relationship between this European Standard and the essential
requirements of Directive 2014/68/EU (Pressure Equipment Directive)
aimed to be covered
This European Standard has been prepared under Commission Implementing Decision C(2024)1241 of
1.3.2024 on a standardisation request to the European Committee for Standardization and the
European Committee for Electrotechnical Standardization as regards pressure equipment and
assemblies in support of Directive 2014/68/EU of the European Parliament and of the Council (M/601)
to provide one voluntary means of conforming to essential requirements of 2014/68/EU (Pressure
equipment Directive).
Once this standard is cited in the Official Journal of the European Union under that Directive,
compliance with the normative clauses of this standard given in Table ZA.1 confers, within the limits of
the scope of this standard, a presumption of conformity with the corresponding essential requirements
of that Directive, and associated EFTA regulations.
Table ZA.1 — Correspondence between this European Standard and Annex I of Directive
2014/68/EU (Pressure Equipment Directive)
Essential Requirements of Clause(s)/sub-clause(s) Remarks/Notes
Directive 2014/68/EU of this EN
2.2.1 1, 4.1, 4.2, 4.4 Design
2.2.3 4.1, 4.4.1, 5.2.4
2.2.4 5 Clause 5 covers the sample tests
which is representative of the
equipment, except the last
sentence of subclause 5.2.5.
4.1 4.2, 4.4, Table E.1 Table E.1 is based on the
approved European Materials
nomenclature.
When it comes to bending tests,
the test shall be done under
specified operating conditions.
4.2 4.2, Table E.1
4.3 4.2 Clause 4.2 requirement 3) covers
the material conformity.
st
3.2.2 1 paragraph of 5.2.4 Proof test
3.3 7 Marking
Table ZA.2 — Applicable Standards to confer presumption of conformity as described in this
Annex ZA
Reference in International Title Corresponding European
Clause 2 Standard Edition Standard Edition
ISO 7369 ISO 7369:2020 Pipework — Metal hoses and hose EN ISO 7369:2020
assemblies — Vocabulary
ISO 10806 ISO 10806:2003 Pipework — Fittings for EN ISO 10806:2003
corrugated metal hoses
ISO 21010 ISO 21010:2017 Cryogenic vessels — Gas/material EN 1797:2001
compatibility
ISO 21028-1 ISO 21028-1:2016 Cryogenic vessels — Toughness EN ISO 21028-1:2016
requirements for materials at
cryogenic temperature — Part 1:
Temperatures below −80 °C
ISO 23208 ISO 23208:2017 Cryogenic vessels — Cleanliness EN ISO 23208:2019
for cryogenic service
The documents listed in the Column 1 of Table ZA.2, in whole or in part, are normatively referenced in
this document, i.e. are indispensable for its application. The achievement of the presumption of
conformity is subject to the application of the edition of Standards as listed in Column 4 or, if no
European Standard Edition exists, the International Standard Edition given in Column 2 of Table ZA.2.
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European
Standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of
this standard.
International
Standard
ISO 21012
Third edition
Cryogenic vessels — Hoses
2024-08
Récipients cryogéniques — Tuyaux flexibles
Reference number
ISO 21012:2024(en) © ISO 2024
ISO 21012:2024(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
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Email: copyright@iso.org
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Published in Switzerland
ii
ISO 21012:2024(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General requirements . 2
4.1 Design and construction .2
4.2 Materials .3
4.3 Cleanliness .3
4.4 Mechanical properties .4
4.4.1 Burst pressure .4
4.4.2 Pressure cycles .4
4.4.3 Bending test .4
4.4.4 Resistance to abuse . .4
4.4.5 Low temperature resistance .4
4.4.6 Leak tightness .4
4.4.7 Electrical properties .4
5 Hose sample tests . . 4
5.1 General .4
5.2 Non-destructive tests and inspection.6
5.2.1 Documentation of materials .6
5.2.2 Dimensional check .6
5.2.3 Cleanliness check .6
5.2.4 Pressure test .6
5.2.5 Leak test .
...
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