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CEN
EN 14620-2:2006

EN 14620-2:2006

Current

Current

The latest, up-to-date edition.

Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and -165 °C - Part 2: Metallic components

Published date

13-09-2006

Publisher

Comite Europeen de Normalisation

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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Materials
  4.1 General
  4.2 Temperatures
  4.3 Primary and secondary liquid container
  4.4 Vapour container/outer tank
  4.5 Other components
5 Design
  5.1 Design theory
  5.2 Primary and secondary liquid container
  5.3 Vapour container (outer tank)
  5.4 Suspended roof
  5.5 Nozzles
  5.6 Primary and secondary containment, bottom connections
  5.7 Connections between containers
  5.8 Other details
6 Fabrication
  6.1 Handling of materials
  6.2 Plate preparation and tolerances
  6.3 Tolerances
  6.4 Roof
  6.5 Temporary attachments
7 Welding procedures
  7.1 General
  7.2 WPAR requirements
  7.3 Impact testing
  7.4 9 % Nickel steel
  7.5 Welders and welding operators
  7.6 Production test plates
8 Welding
  8.1 Tack and temporary welds
  8.2 Atmospheric conditions
  8.3 Preheating
  8.4 Post-weld heat treatment
9 Inspection
  9.1 Qualification of NDE personnel
  9.2 Inspection procedures
  9.3 Type of inspections
  9.4 Visual inspection
  9.5 Dye penetrant examination
  9.6 Magnetic particle examination
  9.7 Vacuum box examination
  9.8 Ammonia tightness test
  9.9 Soap bubble examination
  9.10 Radiographic examination
  9.11 Ultrasonic examination
  9.12 Acceptance criteria
  9.13 Unacceptable defects in horizontal welds
  9.14 Acceptable thinning after grinding
Annex A (informative) Actions on membrane
Annex B (informative) Determination of the load and fatigue
        curves for membrane
Bibliography

This European Standard specifies general requirements for the materials, design, construction and installation of the metallic components of refrigerated liquefied gas storage tanks.This European Standard deals with the design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and –165 °C.

Committee
CEN/TC 265
DevelopmentNote
Supersedes PREN 14620-2. (12/2007)
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Current
Supersedes

BS EN 14620-4:2006 Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0°C and -165°C Insulation components
Z276-18 Liquefied natural gas (LNG) - Production, storage, and handling
NFPA 59A : 2016 PRODUCTION, STORAGE, AND HANDLING OF LIQUEFIED NATURAL GAS (LNG)
BS EN 14620-3:2006 Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0°C and -165°C Concrete components
EEMUA 207 : 2009 DOUBLE CONCRETE TANKS FOR LIQUEFIED GAS - GUIDE TO DESIGN, CONSTRUCTION AND OPERATION
EEMUA 147 : 2016 RECOMMENDATIONS FOR REFRIGERATED LIQUEFIED GAS STORAGE TANKS
BS EN 14620-5:2006 Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0°C and -165°C Testing, drying, purging and cool-down
BS EN 14620-1:2006 Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0°C and -165°C General
EN 14620-5:2006 Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and -165 °C - Part 5: Testing, drying, purging and cool-down
EN 14620-3:2006 Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and -165 °C - Part 3: Concrete components
EN 14620-1:2006 Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and -165 °C - Part 1: General
EN 14620-4:2006 Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and -165 °C - Part 4: Insulation components
I.S. EN 14620-1:2006 DESIGN AND MANUFACTURE OF SITE BUILT, VERTICAL, CYLINDRICAL, FLATBOTTOMED STEEL TANKS FOR THE STORAGE OF REFRIGERATED, LIQUEFIED GASES WITH OPERATING TEMPERATURES BETWEEN 0 DEGREE C AND -165 DEGREE C - PART 1: GENERAL
ONORM EN 14620-1 : 2006 DESIGN AND MANUFACTURE OF SITE BUILT, VERTICAL, CYLINDRICAL, FLAT-BOTTOMED STEEL TANKS FOR THE STORAGE OF REFRIGERATED, LIQUEFIED GASES WITH OPERATING TEMPERATURES BETWEEN 0 DEGREES C AND -165 DEGREES C - PART 1: GENERAL

EN ISO 6520-1:2007 Welding and allied processes - Classification of geometric imperfections in metallic materials - Part 1: Fusion welding (ISO 6520-1:2007)
EN 444:1994 Non-destructive testing - General principles for radiographic examination of metallic materials by X- and gamma-rays
EN ISO 5817:2014 Welding - Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) - Quality levels for imperfections (ISO 5817:2014)
EN 462-2:1994 Non-destructive testing - Image quality of radiographs - Part 2: Image quality indicators (step/hole type) - Determination of image quality value
EN 1515-1:1999 Flanges and their joints - Bolting - Part 1: Selection of bolting
ISO 6520-1:2007 Welding and allied processes Classification of geometric imperfections in metallic materials Part 1: Fusion welding
ENV 1993-4-2 : DRAFT 1999 EUROCODE 3: DESIGN OF STEEL STRUCTURES - PART 4-2: SILOS, TANKS AND PIPELINES - TANKS
EN 10028-3:2017 Flat products made of steels for pressure purposes - Part 3: Weldable fine grain steels, normalized
EN 10029:2010 Hot-rolled steel plates 3 mm thick or above - Tolerances on dimensions and shape
ENV 1993-1-6 : DRAFT 1999 EUROCODE 3: DESIGN OF STEEL STRUCTURES - PART 1-6: GENERAL RULES - SUPPLEMENTARY RULES FOR THE SHELL STRUCTURES
EN 1759-1:2004 Flanges and their joint - Circular flanges for pipes, valves, fittings and accessories, Class designated - Part 1: Steel flanges, NPS 1/2 to 24
API 620 : 2013 DESIGN AND CONSTRUCTION OF LARGE, WELDED, LOW-PRESSURE STORAGE TANKS
NFA 09 106 : 1979 TESTING FOR LEAK TIGHTNESS BY MEANS OF AMMONIA - LOCATING OF LEAKS BY OVERALL PRESSURIZATION
ISO 965-2:1998 ISO general purpose metric screw threads — Tolerances — Part 2: Limits of sizes for general purpose external and internal screw threads — Medium quality
EN 10216-2:2013 Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 2: Non-alloy and alloy steel tubes with specified elevated temperature properties
EN 14015:2004 Specification for the design and manufacture of site built, vertical, cylindrical, flat-bottomed, above ground, welded, steel tanks for the storage of liquids at ambient temperature and above
EN 10088-2:2014 Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes
EN 473:2008 Non-destructive testing - Qualification and certification of NDT personnel - General principles
EN 14620-5:2006 Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and -165 °C - Part 5: Testing, drying, purging and cool-down
EN 10045-1 : 1990 METALLIC MATERIALS - CHARPY IMPACT TEST - PART 1: TEST METHOD
ISO 5817:2014 Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) — Quality levels for imperfections
EN 1515-2:2001 Flanges and their joints - Bolting - Part 2: Classification of bolt materials for steel flanges, PN designated
ISO 15614-1:2017 Specification and qualification of welding procedures for metallic materials — Welding procedure test — Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys
ISO 15609-1:2004 Specification and qualification of welding procedures for metallic materials Welding procedure specification Part 1: Arc welding
EN 875:1995 Destructive tests on welds in metallic materials - Impact tests - Test specimen location, notch orientation and examination
EN 10204:2004 Metallic products - Types of inspection documents
EN 584-1:2006 Non-destructive testing - Industrial radiographic film - Part 1: Classification of film systems for industrial radiography
EN 12062:1997/A2:2003 NON-DESTRUCTIVE EXAMINATION OF WELDS - GENERAL RULES FOR METALLIC MATERIALS
EN ISO 15609-1:2004 Specification and qualification of welding procedures for metallic materials - Welding procedure specification - Part 1: Arc welding (ISO 15609-1:2004)
EN 462-1:1994 Non-destructive testing - Image quality of radiographs - Part 1: Image quality indicators (wire type) - Determination of image quality value
EN 1712:1997/A2:2004 NON-DESTRUCTIVE TESTING OF WELDS - ULTRASONIC TESTING OF WELDED JOINTS - ACCEPTANCE LEVELS
EN 14620-4:2006 Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and -165 °C - Part 4: Insulation components
ISO 261:1998 ISO general purpose metric screw threads — General plan
EN 584-2:1996 Non destructive testing - Industrial radiographic film - Part 2: Control of film processing by means of reference values
EN 10216-1:2013 Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 1: Non-alloy steel tubes with specified room temperature properties
ISO 15607:2003 Specification and qualification of welding procedures for metallic materials General rules
EN 571-1:1997 Non destructive testing - Penetrant testing - Part 1: General principles
EN 1418:1997 Welding personnel - Approval testing of welding operators for fusion welding and resistance weld setters for fully mechanized and automatic welding of metallic materials
EN 10220:2002 Seamless and welded steel tubes - Dimensions and masses per unit length
EN 10160:1999 Ultrasonic testing of steel flat product of thickness equal or greater than 6 mm (reflection method)
EN 10028-4:2017 Flat products made of steels for pressure purposes - Part 4: Nickel alloy steels with specified low temperature properties
EN 14620-3:2006 Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and -165 °C - Part 3: Concrete components
EN 970:1997 Non-destructive examination of fusion welds - Visual examination
EN 1290:1998/A2:2003 NON-DESTRUCTIVE EXAMINATION OF WELDS - MAGNETIC PARTICLE EXAMINATION OF WELDS
EN 14620-1:2006 Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and -165 °C - Part 1: General
EN ISO 15607:2003 Specification and qualification of welding procedures for metallic materials - General rules (ISO 15607:2003)
EN 10216-3:2013 Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 3: Alloy fine grain steel tubes
EN 10088-1:2014 Stainless steels - Part 1: List of stainless steels
EN 287-1:2011 Qualification test of welders - Fusion welding - Part 1: Steels

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