SIST EN ISO 21012:2019
(Main)Cryogenic vessels - Hoses (ISO 21012:2018)
Cryogenic vessels - Hoses (ISO 21012:2018)
This standard gives design, construction, type and production testing, and marking requirements for non insulated cryogenic flexible hose used for the transfer of cryogenic fluids within the following range of operating conditions : - working temperature: from - 270 °C to + 65 °C ; - maximum nominal pressure: 80 bar ; - nominal size (DN): from 10 to 100. End fittings for mounting of any couplings are within the scope of this standard, but the couplings are subject to other standards. It is intended that the hose be designed and tested to satisfy the generally accepted nominal pressure e.g. PN 40. Hoses may then be selected with a PN equal to or greater than the maximum allowable pressure (PS) of the equipment to which it is to be used.
Kryo-Behälter - Schlauchleitungen (ISO 21012:2018)
Dieses Dokument legt die Auslegung, den Bau, die Baumuster und Produktionsprüfung sowie Anforderungen hinsichtlich der Kennzeichnung von nichtisolierten tiefkalten flexiblen Schläuchen fest, die bei der Übertragung tiefkalter Fluide im folgenden Bereich von Betriebs¬bedingungen 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.
Es ist vorgesehen, dass der Schlauch so ausgelegt und geprüft wird, dass sie dem allgemein anerkannten Nenndruck entspricht, d. h. mindestens PN 40. Die Schläuche dürfen dann für einen Nenndruck PN ausgewählt werden, der gleich oder größer ist als der höchstzulässige Druck (PS) der Einrichtung, in der sie angewendet werden.
Récipients cryogéniques - Tuyaux flexibles (ISO 21012:2018)
L'ISO 21012:2018 définit la conception, le type et les tests de production ainsi que les exigences de marquage applicables aux tuyaux flexibles cryogéniques non isolés utilisés pour le passage des fluides cryogéniques dans la plage de conditions de fonctionnement suivante:
- température de service: entre − 270 °C et + 65 °C;
- diamètre nominal (DN): entre 10 et 100.
Les pièces d'extrémité de montage d'un accouplement quelconque relèvent du domaine d'application de l'ISO 21012:2018; néanmoins, les accouplements sont couverts par d'autres normes.
Le tuyau doit être conçu et soumis à essai de façon à respecter la pression nominale communément acceptée, c'est-à-dire PN 40 au minimum. Les tuyaux peuvent être ensuite sélectionnés avec une pression nominale (PN) supérieure ou égale à la pression maximale admissible (PS) de l'équipement à laquelle il doit être utilisé.
Kriogene posode - Gibke cevi (ISO 21012:2018)
Ta standard podaja zahteve za projektiranje, konstrukcijo, tipsko in proizvodno preskušanje ter zahteve za označevanje za neizolirane kriogene gibke cevi, ki se uporabljajo za prenos kriogenih tekočin v naslednjem razponu delovnih pogojev: – delovna temperatura: od - 270 °C do + 65 °C ; – največji nazivni tlak: 80 barov; – nazivna velikost (DN): od 10 do 100. Končni priključki za montažo kakršnih koli spojk sodijo v področje uporabe tega standarda, vendar pa za spojke veljajo drugi standardi. Cev naj bi bila oblikovana in preizkušena, tako da ustreza splošno sprejetemu nazivnemu tlaku npr. PN 40. Nato se lahko izbere cevi, ki imajo PN enak ali večji od največjega dovoljenega tlaka (PS) opreme, s katero se uporabljajo.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2019
1DGRPHãþD
SIST EN 12434:2001
SIST EN 12434:2001/AC:2002
Kriogene posode - Gibke cevi (ISO 21012:2018)
Cryogenic vessels - Hoses (ISO 21012:2018)
Kryo-Behälter - Schlauchleitungen (ISO 21012:2018)
Récipients cryogéniques - Tuyaux flexibles (ISO 21012:2018)
Ta slovenski standard je istoveten z: EN ISO 21012:2018
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
December 2018
EUROPÄISCHE NORM
ICS 23.020.40; 83.140.40 Supersedes EN 12434:2000
English Version
Cryogenic vessels - Hoses (ISO 21012:2018)
R?ipients cryog?iques - Tuyaux flexibles (ISO Kryo-Beh?ter - Schlauchleitungen (ISO 21012:2018)
21012:2018)
This European Standard was approved by CEN on 15 November 2018.
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, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 21012:2018 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the Essential
requirements of EU Directive 2014/68/EU (Pressure equipment Directive) aimed to
be covered . 4
European foreword
This document (EN ISO 21012:2018) 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 June 2019, and conflicting national standards shall be
withdrawn at the latest by June 2019.
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 12434:2000.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For the relationship with EU Directive(s) see informative Annex ZA, which is an integral part of this
document.
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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 21012:2018 has been approved by CEN as EN ISO 21012:2018 without any modification.
Annex ZA
(informative)
Relationship between this European Standard and the Essential
requirements of EU Directive 2014/68/EU (Pressure equipment Directive)
aimed to be covered
This European Standard has been prepared under a Commission’s standardization request M/071 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 Clause(s)/sub- Remarks/Notes
of Directive clause(s) of this
2014/68/EU EN
2.2.1 4.1 Design
4 4.2 Materials
1.1 4.3 Cleanliness
2.2.3 (b) 4.4 Mechanical properties
2.2.4 5 Hose sample test
3.2.2 6.2 Proof test
3.3 7 Marking
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 ISO
STANDARD 21012
Second edition
2018-03
Cryogenic vessels — Hoses
Récipients cryogéniques — Tuyaux flexibles
Reference number
ISO 21012:2018(E)
©
ISO 2018
ISO 21012:2018(E)
© ISO 2018
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ii © ISO 2018 – All rights reserved
ISO 21012:2018(E)
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 (optional, upon request of purchaser) . 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 . 6
5.2.6 Crushing test. 6
5.3 Destructive tests . 7
5.3.1 Hydraulic pressure cycling . 7
5.3.2 Rolling bend cycling test . 7
5.3.3 Hydraulic bursting test . 7
5.3.4 Examination of sectional cut . 7
6 Production testing . 8
6.1 General . 8
6.2 Pressure test . 8
6.3 Leak test . 8
7 Marking . 8
8 Cleaning .
...
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