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



SIST EN 12542:2002



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



EN 12542:2002 (E)2ContentspageForeword.51Scope.62Normative references.63Terms and definitions.74Materials.84.1Shells and ends.84.2Pressure parts other than shells and ends.94.3Parts welded to the tank.104.4Welding consumables.104.5Certificates.104.6Non metallic materials (gaskets).105Design.105.1General.105.2Temperature.105.3Pressure.105.4Vacuum conditions.115.5Support loadings.115.6Lifting lugs loadings.115.7Drawing.116Openings.116.1General.116.2Reinforcement.116.3Position of welds and openings.117Workmanship and manufacture.117.1General.117.2Control and traceability of materials.117.3Manufacturing tolerances.127.4Acceptable weld details.127.4.1Longitudinal welds.127.4.2Joggle joints.127.5Formed pressure parts.137.5.1General.137.5.2Heat treatment after forming.137.5.3Testing of formed parts.137.5.4Repeated tests.147.5.5Visual examination and dimensional check.147.5.6Marking.147.5.7Test certificate.147.6Welding.147.6.1General.147.6.2Welding procedure specification (WPS).147.6.3Qualification of WPS.147.6.4Qualification of welders and welding personnel.157.6.5Preparation of edges to be welded.157.6.6Execution of welded joints.157.6.7Attachments and supports.157.6.8Preheating.157.7Post weld heat treatment.157.8Repairs.167.8.1Repairs of surface imperfections in the parent metal.167.8.2Repair of weld imperfections.168Non-pressure attachments.168.1Attachment.16SIST EN 12542:2002



EN 12542:2002 (E)38.2Position.168.3Vent hole.169Inspection and testing.169.1Visual examination of welds.169.2Non-destructive testing (NDT).179.3Non-destructive testing techniques.179.3.1General.179.3.2Radiographic techniques.179.3.3Ultrasonic techniques.189.3.4Magnetic particle techniques.189.3.5Penetrant techniques.189.4Marking, all non-destructive testing techniques.189.5Qualification of personnel.189.6Acceptance criteria.189.7Production test plates (coupon plates).199.8Final assessment.209.8.1Pressure test.209.8.2Final examination.2110Surface treatment and finishing.2110.1General.2110.2Reflectivity.2110.3Finishing operations.2211Marking and certification.2212Records and documentation.2212.1Records to be obtained by the manufacturer.2212.2Documents to be prepared by the manufacturer.22Annex A (normative)
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



EN 12542:2002 (E)4E.3.7Extent of reinforcement.37E.3.8Elliptical openings.37E.3.9Welded branches.37E.3.10Compensating plates.38E.3.11Reinforcement — General.38E.3.12Reinforcement by pads.38E.3.13Reinforcement by branches.38E.3.14Branch connections normal to the tank wall.39Annex F (informative)
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



EN 12542:2002 (E)5ForewordThis document (EN 12542:2002) has been prepared by Technical Committee CEN /TC 286, "Liquefied PetroleumGas equipment and Accessories", the secretariat of which is held by NSAI.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by October 2002, and conflicting national standards shall be withdrawn at the latestby October 2002.This document has been prepared under a mandate given to CEN by the European Commission and the EuropeanFree Trade Association, and supports essential requirements of EU Directive(s).For 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 followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,Sweden, Switzerland and the United Kingdom.NOTEThe design formulae quoted in this document require the use of consistent units.SIST EN 12542:2002



EN 12542:2002 (E)61 ScopeThis European Standard specifies requirements for the design and manufacture of static welded steel cylindricaltanks, serially produced for the storage of liquefied petroleum gas (LPG) with a volume not greater than 13 m3 andfor installation above ground.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 287-1, Approval and testing of welders for fusion welding — Part 1: Steels.EN 288-2, Specification and qualification of welding procedures for metallic materials —Part 2: Welding procedurespecification for arc welding.EN 288-3, Specification and qualification of welding procedures for metallic materials — Part 3: Welding proceduretests for the arc welding of steels.EN 288-8, Specification and qualification of welding procedures for metallic materials — Part 8: Approval by a pre-production welding test.EN 462, Non-destructive testing.EN 473, Qualification and certification of NDT personnel — General principles.EN 499, Welding consumables— Covered electrodes for manual arc welding of non-alloy and fine grain steels —Classification.EN 571-1, Non destructive testing — Penetrant testing — Part 1: General principles.EN 756, Welding consumables — Wire electrodes and wire-flux combinations for submerged arc welding of nonalloy and fine grain steels — Classification.EN 758, Welding consumables — Tubular card electrodes for metal arc welding with and without a gas shield ofnon-alloy and fine grain steels — Classification.EN 837-2, Pressure gauges — Part 2: Selection and installation recommendations for pressure gauges.EN 875, Destructive tests on welds in metallic materials — Impact test.EN 876, Destructive tests on welds in metallic materials — Longitudinal tensile test.EN 895, Transverse tensile test.EN 910, Destructive tests on welds in metallic materials — Bend tests.EN 970, Non-destructive examination of fusion welds – Visual examination.EN 1290, Non-destructive examination of welds — Magnetic particle testing of welds — Method.EN 1321, Destructive tests on welds in metallic materials — Macroscopic and microscopic examination.EN 1418, Welding personnel — Approval testing of welding operators for fusion welding and resistance weldsetters for fully mechanized and automatic welding of metallic materials.EN 1435, Non-destructive examination of welds — Radiographic examination of welded joints.SIST EN 12542:2002



EN 12542:2002 (E)7EN 1668, Welding consumables — Rods, wires and deposits for tungsten inert gas welding of non-alloy and finegrain steels — Classification.EN 1708 –1, Welding — Basic weld joints in steel — Part 1: Pressurized components.EN 1714, Non destructive examination of welds — Ultrasonic examination of welded joints.ISO 9162, Petroleum products – Fuels (class F) – Liquefied petroleum gases – Specifications.EN 10025, Hot rolled products of non-alloy structural steels; technical delivery conditions (includes amendmentA1:1993).EN 10028-2, Flat products made of steels for pressure purposes — Part 2: Non-alloy and alloy steels with specifiedelevated temperature properties.EN 10028-3, Flat products made of steels for pressure purposes — Part 3: Weldable fine grain steels, normalized.EN 10028-5, Flat products made of steels for pressure purposes — Part 5: Weldable fine grain steels,thermomechanically rolled.EN 10204, Metallic products — Type of inspection documents.EN 12062, Non-destructive examination of welds — General rules for metallic materials.prEN 13445-2, Unfired pressure vessels — Part 2: Materials.prEN 13445-3, Unfired pressure vessels — Part 3: Design.EN ISO 6520-1, Welding and applied procedures — Classification of imperfections in metallic materials — Part 1:Fusion welding.3 Terms and definitionsFor the purposes of this European Standard, the following terms and definitions apply.3.1yield strengthupper yield strength ReH or, for steels that do not exhibit a definite yield, the 0,2 % proof stressNOTEThese properties are equivalent to those specified by the symbol Re/t, in the PED3.2serially produced tanksmore than one tank manufactured in the same factory to a common design using the same material andmanufacturing procedure and produced with no major interruption within a given period of time3.3batchgroup of pressure parts or finished tanks, made consecutively by the same manufacturer using the samemanufacturing techniques to the same design, size and material specifications on the same production machineryand subject to the same heat treatment conditionsNOTEIn this context consecutively need not imply continuous production3.4cold formingforming at temperatures not less than 25 °C below the maximum permissible temperature for stress relieving inaccordance with the material specification3.5hot formingforming at temperatures above the maximum permissible temperature for stress relieving in accordance with thematerial specificationSIST EN 12542:2002



EN 12542:2002 (E)83.6climatic areageographic area agreed or defined by the relevant national aut
...