EN 12542:2002

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Ortsfeste, geschweisste zylindrische Behälter aus Stahl, die serienmäßig für die Lagerung von Flüssiggas (LPG) hergestellt werden, mit einem Fassungsvermögen bis 13 m3 für oberirdische Aufstellung - Gestaltung und HertstellungConception and construction des réservoirs cylindriques fixes en acier soudés, aériens, pour le gaz de pétrole liquefié (GPL) ayant un volume inférieur ou égal a 13m3Static welded steel cylindrical tanks, serially produced for the storage of Liquefied Petroleum Gas (LPG) having a volume not greater than 13m3 and for installation above ground - Design and manufacture23.020.10UH]HUYRDUMLStationary containers and tanksICS:Ta slovenski standard je istoveten z:EN 12542:2002SIST EN 12542:2002en01-november-2002SIST EN 12542:2002SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12542April 2002ICS 23.020.30English versionStatic welded steel cylindrical tanks, serially produced for thestorage of Liquefied petroleum gas (LPG) having a volume notgreater than 13m³ and for installation above ground - Designand manufactureRéservoirs cylindriques fixes, aériens, en acier soudé,fabriqués en série pour le stockage de gaz de pétroleliquéfié (GPL) ayant un volume inférieur ou égal à 13 m³ -Conception et fabricationOrtsfeste, geschweißte zylindrische Behälter aus Stahl, dieserienmäßig für die Lagerung von Flüssiggas (LPG)hergestellt werden, mit einem Fassungsvermögen bis 13m³ für oberirdische Aufstellung - Gestaltung undHertstellungThis European Standard was approved by CEN on 15 February 2002.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, Malta, 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© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12542:2002 ESIST EN 12542:2002

Design pressure and filling conditions.24A.1Design pressure (p).24A.2Filling conditions.24A.3Calculation of maximum fill.24Annex B (normative)
Tolerances on tanks.26B.1Mean external diameter.26B.2Out of roundness.26B.3Deviation from the straight line.26B.4Irregularities in circular profile.26B.5Dished end tolerance.27B.6Profile.27B.7Surface alignment.28B.8Attachments, nozzles and fittings.28Annex C (normative)
Hydraulic pressure test.29C.1Temporary fittings.29C.2Pressure gauges.29C.3Pressurising agent.29C.4Avoidance of shocks.29C.5Test procedure.29Annex D (normative)
Imperfections.30Annex E (normative)
Design formulae for tanks.33E.1Allowable stresses.33E.2Design formulae.33E.2.1General.33E.2.2Cylindrical shell calculation.33E.2.3Torispherical end calculation.33E.2.4Ellipsoidal end calculation.34E.2.5Equations for calculating C.35E.3Nozzle re-enforcement.36E.3.1General.36E.3.2Size of openings.36E.3.3Distance between openings or branches.36E.3.4Openings and branches.37E.3.5Cylindrical shells and dished ends with openings.37E.3.6Shell reinforcement.37SIST EN 12542:2002

Measurement of shell peaking.43F.1Profile gauge.43F.2Peaking survey.43Annex G (informative)
Examples of joints.46Annex H (informative)
Method for determining reflectivity indices.50H.1Method.50Annex ZA (informative)
Clauses of this European Standard addressing essential requirements or otherprovisions of EU Directives.51Bibliography.52SIST EN 12542:2002

In accordance with the specification of the steel product standards, ReH may be replaced by Rp0,2.b
A higher value is accepted provided that Cr + Mo + Ni + Cu + V < 0,75 %.4.2 Pressure parts other than shells and endsMaterials for pressure parts other than shells and ends shall conform to the appropriate harmonised EuropeanStandard for the material or a similar specification which has European materials approval.Materials shall also meet the requirements of 4.1.SIST EN 12542:2002

Suitabilityof the chosen consumables shall be demonstrated in accordance with 7.6.3.4.5 CertificatesThe tank manufacturer shall obtain certificates showing the chemical analysis and details of the mechanicalproperties of the steel supplied for the construction of the pressure retaining parts of the tank. The certificates shallbe in accordance with EN 10204, certificate Type 3.1B.4.6 Non metallic materials (gaskets)Non metallic materials shall be compatible with both phases of LPG over the full range of pressures andtemperatures anticipated in service.5 Design5.1 GeneralTank thicknesses shall be calculated in accordance with Annex E.For tanks intended to contain LPG which complies with ISO 9162 supplied to a national or International Standard orother equivalent specification, no internal corrosion allowance is required.For tanks protected against external corrosion in accordance with 10.1, no external corrosion allowance is required.The appropriate weld joint factor for the material used and the level of non-destructive testing to be adopted shallbe selected in accordance with Table 2.The tank shall be designed to withstand the forces of pressure, vacuum conditions and liquid load in accordancewith 5.3, 5.4 and 5.5.Where necessary, attachments to the tank shall be welded using a backing plate.5.2 TemperatureThe design temperature range shall be –20 °C to 50 °C. However, where temperatures lower than –20 °C areenvisaged, the manufacturer shall demonstrate that the material from which the pressure containing parts of thetank are constructed shall have properties suitable for a range of temperatures
–40 °C to 50 °C in accordance withprEN 13445-2.5.3 PressureThe design pressure, p (see 3.9), shall not be less than the maximum pressure reached in service, in accordance withAnnex A. It shall be selected taking into account the maximum pressure developed by the LPG.SIST EN 12542:2002

profile of the offset shall be maintained, with a smooth radius without sharp corners throughout production;c) on completion of the welding the weld shall have a smooth profile and shall fill the groove to the full thicknessof the plate edge being joined.NOTERecommended arrangement for joggle joints is shown in Figure G.2.7.4.2.2When the flange section of the dished end is joggled, the joggle shall be sufficiently clear of theknuckle radius to ensure that the edge of the circumferential weld is at least 12 mm clear of the knuckle.7.2.2.3When a strake edge is joggled the longitudinal or helical weld shall be ground flush internally andexternally for a distance of approximately 50 mm prior to joggling with no reduction of plate thickness. Oncompletion of the joggling,
the area of the weld shall be proven to be free of cracks by magnetic particle testing inaccordance with EN 1290 or penetrant testing in accordance with EN 571-1.SIST EN 12542:2002
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