SIST EN 14197-3:2004

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Cryogenic vessels - Static non-vacuum insulated vessels - Part 3: Operational requirementsKriogene posode – Stabilne, vakuumsko neizolirane posode - 3. del: Zahteve za obratovanjeRécipients cryogéniques - Récipients statiques non isolés sous vide - Partie 3: Exigences de fonctionnementKryo-Behälter - Ortsfeste nicht vakuum-isolierte Kryo-Behälter - Teil 3: BetriebsanforderungenTa slovenski standard je istoveten z:EN 14197-3:2004SIST EN 14197-3:2004en23.020.40ICS:SLOVENSKI
STANDARDSIST EN 14197-3:200401-junij-2004

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14197-3March 2004ICS 23.020.40English versionCryogenic vessels - Static non-vacuum insulated vessels - Part3: Operational requirementsRécipients cryogéniques - Récipients fixes, non isolés sousvide - Partie 3: Exigences de serviceKryo-Behälter - Ortsfeste nicht vakuum-isolierte Kryo-Behälter - Teil 3: BetriebsanforderungenThis European Standard was approved by CEN on 1 August 2003.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 Central Secretariat 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 Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14197-3:2004: E

Example of an emergency procedure.17Annex B (informative)
Safety distances.18Annex ZA (informative)
Clauses of this European Standard addressing essential requirements or otherprovisions of EU Directives.19

Personnel trainingOnly persons trained for the specific task shall be allowed to install, put into service, fill, handle, operate or maintainthe vessel.The training programme shall include :¾ normal operating procedures ;¾ product and hazard identification ;¾ safe operating limits ;¾ emergency procedures ;¾ physical and chemical properties of the vessel's contents and their effects on the human body ;¾ personnel protective equipment (e.g. safety boots/goggles/gloves).Training shall be repeated as necessary to ensure that personnel remain competent. A training record should bemaintained which details the information personnel have received.5 General safety requirements5.1 GeneralIdentification labels and plates shall not be removed or defaced. Appropriate warning signs regarding product andoperational hazards and personnel protective equipment requirements should be displayed. Parts under pressureshall be disconnected only if they have been previously depressurized. When under pressure leaking valves orconnections shall only be tightened using suitable tools and procedures. Direct flame or intense heat shall never beused to raise the pressure or to de-ice frozen valves.Vessels shall be kept free from oil and grease ; for cleanliness requirements EN 12300 applies. Valve outlets shallbe kept clean, dry and free from contaminants. Vessels shall not be modified without proper authorization.5.2 Safety considerationsIn all operations and training the following safety considerations shall be taken into account :¾ small amounts of cryogenic fluids will produce large volumes of vaporized gas. Spillage of cryogenic fluids canresult in an oxygen deficient atmosphere, or in the case of vaporizing oxygen, in an oxygen enrichedatmosphere. Provision is to be made for appropriate measures for this, e.g. ventilation ;¾ due to the possibility of cold embrittlement, cryogenic fluids shall not come in contact with materials (metals orplastics) which are not suitable for low temperatures ;¾ because of their extremely low temperatures, cryogenic fluids will produce cold burns when coming in contactwith the skin. Cold burns can also be produced from contact with uninsulated equipment ;¾ oxygen enrichment due to liquefaction of ambient air can occur on the cold surfaces of uninsulated equipmentwhich contain fluids with a boiling point lower than oxygen.
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