| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 1<\/td>\n | 30326248 <\/td>\n<\/tr>\n | ||||||
| 3<\/td>\n | prEN 12542 <\/td>\n<\/tr>\n | ||||||
| 4<\/td>\n | Contents Page <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | European foreword <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | Introduction <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 1 Scope 2 Normative references <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 4 Materials 4.1 Environmental 4.2 Shells and ends <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | Table 1 \u2014 Material grouping 4.3 Pressure parts other than shell or ends 4.4 Parts welded to the tank <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 4.5 Welding consumables 4.6 Inspection documents for materials 4.7 Non-metallic materials (gaskets) 5 Design 5.1 General <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 5.2 Temperature 5.3 Pressure 5.4 Vacuum conditions 5.5 Support loadings 5.6 Lifting lugs loadings <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 6 Openings 6.1 General 6.2 Reinforcement 6.3 Position of welds and openings 7 Workmanship and manufacture 7.1 General 7.2 Environment 7.3 Control and traceability of materials <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 7.4 Manufacturing tolerances 7.5 Acceptable weld details 7.5.1 General 7.5.2 Longitudinal welds 7.5.3 Joggle joints <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 7.6 Formed pressure parts 7.6.1 General 7.6.2 Heat treatment after forming 7.6.2.1 Environment 7.6.2.2 Heat treatment after cold forming of flat products 7.6.2.3 Heat treatment after hot forming 7.6.3 Testing of formed parts <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 7.6.4 Repeated tests 7.6.5 Visual examination and dimensional check 7.6.6 Marking 7.6.7 Test certificate 7.7 Welding 7.7.1 General <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 7.7.2 Welding procedure specification (WPS) 7.7.3 Qualification of WPS 7.7.4 Qualification of welders and welding operators 7.7.5 Preparation of edges to be welded 7.7.6 Execution of welded joints <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 7.7.7 Attachments and supports 7.7.8 Preheating 7.8 Post weld heat treatment 7.9 Repairs 7.9.1 Repairs of surface imperfections in the parent metal 7.9.2 Repair of weld imperfections <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | 8 Non-pressure attachments 8.1 Attachments 8.2 Position 8.3 Vent hole 9 Inspection and testing 9.1 Visual examination of welds 9.2 Non-destructive testing (NDT) <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | Table 2 \u2014 Extent of non-destructive testing on longitudinal welds and weld joint coefficients 9.3 Non-destructive testing techniques 9.3.1 General 9.3.2 Radiographic techniques <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | 9.3.3 Ultrasonic techniques 9.3.4 Magnetic particle techniques 9.3.5 Penetrant techniques 9.4 Marking for non-destructive testing 9.5 Qualification of personnel 9.6 Acceptance criteria <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | Table 3 \u2014 Acceptance criteria 9.7 Production test plates (coupon plates) <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | 9.8 Final assessment 9.8.1 Pressure test 9.8.2 Final examination <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | Table 4 \u2014 Number of test specimens 10 Surface treatment and finishing 10.1 Environmental considerations 10.2 Above ground tanks 10.2.1 General <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | 10.2.2 Reflectivity Table 5 \u2014 Colours and indices 10.3 Underground tanks 10.4 Finishing operations <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | 11 Marking and certification 12 Records and documentation 12.1 Records to be obtained by the manufacturer <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | 12.2 Documents to be prepared by the manufacturer <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | Annex A (informative) Design pressure and filling conditions A.1 Above ground tanks A.1.1 Design pressure (p) Table A.1 \u2014 Design pressure \u2013 Reflectivity indices 1 and 2 Table A.2 \u2014 Design pressure \u2013 Reflectivity index 3 A.1.2 Filling conditions Table A.3 \u2014 Filling reference temperatures, in degrees Celsius <\/td>\n<\/tr>\n | ||||||
| 34<\/td>\n | A.1.3 Calculation of maximum fill A.2 Underground tanks \u2014 Design pressure Table A.4 \u2014 Design pressure <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | Annex B (normative) Tolerances on tanks B.1 Mean external diameter B.2 Out of roundness B.3 Deviation from the straight line B.4 Irregularities in circular profile <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | B.5 Thickness tolerance B.6 Profile Figure B.1 \u2014 Example of a dished end <\/td>\n<\/tr>\n | ||||||
| 37<\/td>\n | Table B.1 \u2014 Dished end tolerances B.7 Surface alignment B.8 Attachments, nozzles and fittings <\/td>\n<\/tr>\n | ||||||
| 38<\/td>\n | Annex C (normative) Hydraulic pressure test C.1 Temporary fittings C.2 Pressure gauges C.3 Pressurizing agent C.4 Avoidance of shocks C.5 Test procedure <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | Annex D (normative) Imperfections Table D.1 \u2014 Imperfection levels for visual inspection <\/td>\n<\/tr>\n | ||||||
| 40<\/td>\n | Table D.2 \u2014 Imperfection levels for radiography\/radioscopy <\/td>\n<\/tr>\n | ||||||
| 41<\/td>\n | Annex E (normative) Design formulae for tanks E.1 Allowable stresses E.2 Design formulae E.2.1 General E.2.2 Cylindrical shell calculation E.2.3 Torispherical end calculation <\/td>\n<\/tr>\n | ||||||
| 42<\/td>\n | E.2.4 Ellipsoidal end calculation <\/td>\n<\/tr>\n | ||||||
| 43<\/td>\n | Figure E.1 \u2014 Parameter \u03b2 for torispherical end \u2013 Design E.2.5 Hemispherical ends <\/td>\n<\/tr>\n | ||||||
| 44<\/td>\n | E.2.6 Equations for calculating \u03b2 E.3 Nozzle reinforcement E.3.1 General E.3.2 Size of openings <\/td>\n<\/tr>\n | ||||||
| 45<\/td>\n | E.3.3 Distance between openings or branches E.3.4 Openings and branches E.3.5 Cylindrical shells and ends with openings <\/td>\n<\/tr>\n | ||||||
| 46<\/td>\n | E.3.6 Shell reinforcement E.3.7 Extent of reinforcement E.3.8 Elliptical openings E.3.9 Welded branches E.3.10 Compensating plates E.3.11 Reinforcement \u2212 General <\/td>\n<\/tr>\n | ||||||
| 47<\/td>\n | E.3.12 Reinforcement by pads E.3.13 Reinforcement by branches E.3.14 Branch connections normal to the tank wall <\/td>\n<\/tr>\n | ||||||
| 48<\/td>\n | Figure E.2 \u2014 Maximum branch to body thickness ratio <\/td>\n<\/tr>\n | ||||||
| 52<\/td>\n | Annex F (informative) Measurement of shell peaking F.1 Profile gauge F.2 Peaking survey <\/td>\n<\/tr>\n | ||||||
| 53<\/td>\n | Figure F.1 \u2014 Measurement of shell peaking <\/td>\n<\/tr>\n | ||||||
| 54<\/td>\n | Figure F.2 \u2014 Taper gauge <\/td>\n<\/tr>\n | ||||||
| 55<\/td>\n | Annex G (informative) Examples of joints Figure G.1 \u2014 V-butt weld Figure G.2 \u2014 Joggle joint <\/td>\n<\/tr>\n | ||||||
| 56<\/td>\n | Figure G.3 \u2014 Nozzle joints: set-on <\/td>\n<\/tr>\n | ||||||
| 57<\/td>\n | Figure G.4 \u2014 Nozzle joints: set-in <\/td>\n<\/tr>\n | ||||||
| 58<\/td>\n | Figure G.5 \u2014 Nozzle joints: integral backing <\/td>\n<\/tr>\n | ||||||
| 59<\/td>\n | Annex H (informative) Method of determining reflectivity indices (above ground tanks) Table H.1 \u2014 Relationship between measured temperature and reflectivity index <\/td>\n<\/tr>\n | ||||||
| 60<\/td>\n | Annex I (normative) External protection of underground tanks I.1 General I.2 Unmonitored protection systems I.3 Monitored protection systems I.3.1 Systems incorporating cathodic protection <\/td>\n<\/tr>\n | ||||||
| 61<\/td>\n | I.3.2 Systems incorporating a protective envelope I.3.3 Other systems <\/td>\n<\/tr>\n | ||||||
| 62<\/td>\n | Annex J (informative) Exterior corrosion protective coating with special performance against chemical and mechanical attacks J.1 General J.2 Terms and definitions J.3 Requirements J.3.1 General requirements <\/td>\n<\/tr>\n | ||||||
| 63<\/td>\n | J.3.2 Requirements for the coating material J.3.3 Requirements for the coating J.3.3.1 Minimum coating thickness J.3.3.2 Absence of pores J.3.3.3 Adhesive strength J.3.3.4 Impact resistance J.3.3.5 Hardness J.3.3.6 Exposure to wet environment and temperature cycles <\/td>\n<\/tr>\n | ||||||
| 64<\/td>\n | J.3.3.7 Specific electrical resistance of the coating J.3.4 Requirements for the coating process J.3.4.1 Requirements for the base metal to be coated J.3.4.2 Processing temperature in relation to the dew point J.3.4.3 Application of the coating J.3.4.4 Local repairs J.4 Testing J.4.1 Testing for the coating material J.4.1.1 Density J.4.1.2 Viscosity J.4.1.3 IR spectroscopy <\/td>\n<\/tr>\n | ||||||
| 65<\/td>\n | J.4.1.4 Weight loss J.4.1.5 Mass fraction of pigments and filler material J.4.2 Testing for the coating J.4.2.1 Test sheet J.4.2.2 Thickness of coating J.4.2.3 Absence of pores J.4.2.4 Adhesive strength J.4.2.5 Impact resistance <\/td>\n<\/tr>\n | ||||||
| 66<\/td>\n | J.4.2.6 Hardness J.4.2.7 Exposure to saline solution J.4.2.8 Temperature cycling J.4.2.9 Specific electrical resistance of the coating <\/td>\n<\/tr>\n | ||||||
| 67<\/td>\n | J.4.3 Documentation of the coating procedure J.4.3.1 Documentation J.4.3.2 Approval of the coating procedure J.4.4 Test reports and certificates J.5 Marking J.6 Supervision during production <\/td>\n<\/tr>\n | ||||||
| 68<\/td>\n | Annex ZA (informative) Relationship between this European Standard and the essential requirements of EU Directive 2014\/68\/EU aimed to be covered Table ZA.1 \u2014 Correspondence between this European Standard and Directive 2014\/68\/EU <\/td>\n<\/tr>\n | ||||||
| 70<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" BS EN 12542. LPG equipment and accessories. Static welded steel cylindrical tanks, serially produced for the storage of Liquefied Petroleum Gas (LPG) having a volume not greater than 13 m3<\/sup>. Design and manufacture<\/b><\/p>\n |