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 tiefkalten flexiblen Schläuchen als 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/FDIS 21012:2024)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN ISO 21012:2021
01-november-2021
Kriogene posode - Gibke cevi (ISO/DIS 21012:2021)
Cryogenic vessels - Hoses (ISO/DIS 21012:2021)
Kryo-Behälter - Schlauchleitungen (ISO/DIS 21012:2021)
Récipients cryogéniques - Tuyaux flexibles (ISO/DIS 21012:2021)
Ta slovenski standard je istoveten z: prEN ISO 21012
ICS:
23.020.40 Proti mrazu odporne posode Cryogenic vessels
(kriogenske posode)
83.140.40 Gumene cevi Hoses
oSIST prEN ISO 21012:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN ISO 21012:2021
oSIST prEN ISO 21012:2021
DRAFT INTERNATIONAL STANDARD
ISO/DIS 21012
ISO/TC 220 Secretariat: AFNOR
Voting begins on: Voting terminates on:
2021-09-17 2021-12-10
Cryogenic vessels — Hoses
Récipients cryogéniques — Tuyaux flexibles
ICS: 83.140.40; 23.020.40
THIS DOCUMENT IS A DRAFT CIRCULATED
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FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
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WHICH REFERENCE MAY BE MADE IN
Reference number
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ISO/DIS 21012:2021(E)
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TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
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©
PROVIDE SUPPORTING DOCUMENTATION. ISO 2021
oSIST prEN ISO 21012:2021
ISO/DIS 21012:2021(E)
© ISO 2021
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ii © ISO 2021 – All rights reserved
oSIST prEN ISO 21012:2021
ISO/DIS 21012:2021(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 . 8
6 Production testing . 8
6.1 General . 8
6.2 Pressure test . 8
6.3 Leak test . 8
7 Marking . 8
8 Cleaning . 8
9 Periodic examination . 9
10 Test certificate . 9
Annex A (informative) Typical hose assembly .10
Annex B (informative) Rolling bend cycling test for metallic hose assemblies and hose
assemblies made of materials with a record of satisfactory use in cryogenic service .11
Annex C (informative) Rolling bend cycling test for hose assemblies constructed from
materials or composites not commonly used in cryogenic service .13
Annex D (informative) Guidelines for periodic examination of transfilling hoses .15
Annex E (informative) Acceptable materials .16
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2014/68/EU (Pressure Equipment Directive) aimed to
be covered . .21
oSIST prEN ISO 21012:2021
ISO/DIS 21012:2021(E)
Foreword
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bodies (ISO member bodies). The work of preparing International Standards is normally carried out
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electrotechnical standardization.
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described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
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URL: www .iso .org/ iso/ foreword .html.
This document was prepared by ISO/TC 220, Cryogenic vessels, in collaboration with the European
Committee for Standardization (CEN) Technical Committee CEN/TC 268, Cryogenic vessels, in
accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This third edition cancels and replaces the second edition (ISO 21012:2021), which has been technically
revised.
This edition includes the following significant changes with respect to the previous edition:
— Modification of the scope
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2021 – All rights reserved
oSIST prEN ISO 21012:2021
DRAFT INTERNATIONAL STANDARD ISO/DIS 21012:2021(E)
Cryogenic vessels — Hoses
1 Scope
This document specifies design, construction, type and production testing, and marking requirements
for non-insulated cryogenic flexible hoses used for the transfer of cryogenic fluids within the following
range of operating conditions:
— working temperature: 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.
It is intended that the hose be designed and tested to satisfy a rated pressure. Hoses may be t
...
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