EN 1797:2001

Cryogenic vessels - Gas/material compatibility

This European Standard specifies requirements for gas/materials compatibility for cryogenic vessels (such as chemical resistance) but it does not cover mechanical properties (e.g. for low temperature application).
It gives guidance for compatibility with gases other than oxygen and it gives detailed requirements for oxygen and oxygen enriched atmosphere compatibility and defines the testing methods for establishing oxygen compatibility of materials (metallic and non-metallic) to be used for cryogenic vessels and associated equipment.
It mainly deals with materials that are normally or could be in contact with liquid/gaseous oxygen e.g., materials for cryogenic vessels used for the storage and/or transport of liquid oxygen.
It also deals with the materials which can be in contact with oxygen enriched environment e.g. insulating materials used for nitrogen, neon, hydrogen and helium cryogenic vessels in case of air condensation.

Kryo-Behälter - Verträglichkeit von Gas/Werkstoffen

Diese Europäische Norm enthält Anforderungen (wie chemische Beständigkeit) an die Verträglichkeit von Werkstoffen mit Gasen für Kryo-Behälter, aber sie umfasst nicht mechanische Eigenschaften (z. B. für die Anwendung bei tiefen Temperaturen).
Sie gibt Hinweise für die Verträglichkeit mit anderen Gasen als Sauerstoff und sie enthält detaillierte Anforderungen an die Sauerstoff-Verträglichkeit und an die Verträglichkeit mit einer sauerstoffangereicherten Atmosphäre und definiert die Prüfverfahren für die Festlegung der Sauerstoff-Verträglichkeit von (metallischen und nicht-metallischen) Werkstoffen, die für Kryo-Behältern und deren Zubehör verwendet werden.
Sie behandelt hauptsächlich Werkstoffe, die üblicher- oder möglicherweise mit flüssigem/gasförmigem Sauerstoff in Berührung kommen, wie z. B. Werkstoffe für Kryo-Behälter zur Lagerung und/oder für den Transport von flüssigem Sauerstoff.
Sie behandelt auch Werkstoffe, die mit einer sauerstoffangereicherten Umgebung in Berührung kommen könnten, wie z. B. Isolierwerkstoffe gegen Luftkondensation für Kryo-Behälter für Stickstoff, Neon, Wasserstoff und Helium.

Récipients cryogéniques - Compatibilité entre gaz et matériaux

La présente Norme européenne spécifie les prescriptions pour la compatibilité entre gaz et matériaux pour les récipients cryogéniques (telle que la résistance chimique). Les propriétés mécaniques (par exemple : pour une application à basse température) sont en dehors du domaine d'application de la présente Norme européenne.
Elle fournit des lignes directrices pour la compatibilité entre matériaux et gaz autre que l'oxygène et spécifie les prescriptions pour la compatibilité entre matériaux et oxygène et atmosphère enrichie en oxygène ; elle définit également les méthodes d'essai pour établir la compatibilité entre oxygène et matériaux (métalliques et non métalliques) destinés à être utilisés pour les récipients cryogéniques et leurs équipements associés.
Elle traite principalement de matériaux qui sont ou qui pourraient normalement se trouver au contact d'oxygène liquide/gazeux, comme par exemple, les matériaux utilisés pour récipients cryogéniques servant au stockage et/ou au transport d'oxygène liquide.
Elle traite également de matériaux qui sont susceptibles de se trouver au contact d'un environnement enrichi en oxygène, comme par exemple, les matériaux isolants utilisés pour la fabrication de récipients destinés à recevoir de l'azote, du néon, de l'hydrogène et de l'hélium, en cas de condensation d'air.

Kriogene posode - Združljivost plin/material

General Information

• Status: Published
• Publication Date: 17-Jul-2001
• Withdrawal Date: 30-Jan-2002
• ICS: 23.020.40 - Cryogenic vessels
• Technical Committee: CEN/TC 268 - Cryogenic vessels
• Drafting Committee: CEN/TC 268 - Cryogenic vessels
• Directive: 2014/68/EU - Directive 2014/68/EU of the European Parliament and of the Council of 15 May 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of pressure equipment
• Directive: 94/55/EC - Transport of dangerous goods by road
• Directive: 96/49/EC - Transport of dangerous goods by rail
• Directive: 96/86/EC - Transport of dangerous goods by road (94/55/EC Dir. amendment)
• Directive: 96/87/EC - Transport of dangerous goods by rail (96/49/EC Dir. amendment)
• Directive: 97/23/EC - Directive 97/23/EC of the European Parliament and of the Council of 29 May 1997 on the approximation of the laws of the Member States concerning pressure equipment
• Mandate: M/071 - Mandate to CEN for standardization in the field of Pressure equipment
• Mandate: M/086 - Mandate to CEN for standardization in the field of transport of dangerous goods
• Ref Project: SIST EN 1797:2002 - Cryogenic vessels - Gas/material compatibility

Relations

• Replaces: EN 1797-1:1998 - Cryogenic vessels - Gas/material compatibility - Part 1: Oxygen compatibility
• Effective Date: 22-Dec-2008

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Cryogenic vessels - Gas/material compatibilityKriogene posode - Združljivost plin/materialRécipients cryogéniques - Compatibilité entre gaz et matériauxKryo-Behälter - Verträglichkeit von Gas/WerkstoffenTa slovenski standard je istoveten z:EN 1797:2001SIST EN 1797:2002en23.020.40ICS:SIST EN 1797-1:19991DGRPHãþDSLOVENSKI
STANDARDSIST EN 1797:200201-november-2002

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1797July 2001ICS 23.020.40Supersedes EN 1797-1:1998English versionCryogenic vessels - Gas/material compatibilityRécipients cryogéniques - Compatibilité entre gaz etmatériauxKryo-Behälter - Verträglichkeit von Gas/WerkstoffenThis European Standard was approved by CEN on 9 June 2001.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2001 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1797:2001 E

Spontaneous ignition test (Bomb test).8Annex B (normative)
Pressure surge test.13Annex C (informative)
Ignition test - Advantages and disadvantages of the two alternative methods.16Annex ZA (informative)
Clauses of this European Standard addressing essential requirements orother provisions of EU directives.17Bibliography.18

Intermediate values can be determined by linear interpolation.4.4.1.2 Pressure surge test4.4.1.2.1 Test procedureThe test procedure is given in annex B.4.4.1.2.2 Acceptance criteriaNo reaction shall be observed during 5 consecutive pressure surge impacts at the intended maximum workingpressure.4.4.2 Mechanical impact test in liquid oxygen (LOX)4.4.2.1 Test procedureThe mechanical impact test shall be performed at atmospheric pressure in liquid oxygen generally as described inthe bibliography. This is an example of preferred test equipment but the details are not mandatory. The test shall beconducted : on material with the surface condition that is intended for use ; on material in a physical form delivered for use (i.e. solid, powder etc.) ; at an impact energy per unit contact area of 79 J/cm².4.4.2.2 Acceptance criteriaNo reaction shall be detected within a series of 20 tests.
...