European standards for pressure equipment: harmonised, supporting and relevant horizontal
standards.Ed Haynes
Consultant – Pressure Equipment
SYNOPSIS
The Pressure Equipment Directive came into force in May 2002, and several standards, developed by CEN under a mandate from the European Commission, have been harmonised and published in the Official Journal of the European Community. The major harmonised product standards replace existing national standards. Supporting standards include some application standards for welding and non-destructive testing. Harmonised European standards provide a means by which a manufacturer can claim presumption of conformity to the essential safety requirements of the directive.
LIST OF TABLES
The data in the following tables should be checked with published sources or the relevant Technical Committee (TC) or National Standards Body (NSB). It has been condensed for ease of presentation and is subject to update.
Table 1. Unfired pressure vessels, piping and steam boilersTable 2. Valves and safety accessories Table 3. Transportable gas cylinders and portable fire extinguishers Table 4. Refrigeration systems and heat pumps Table 5. GRP tanks and vessels Table 6. Static cryogenic pressure equipment Table 7. Static LPG pressure equipment Table 8. Miscellaneous harmonised product standardsTable 9. Non-destructive examination of welds Table 10. Destructive tests on welds in metallic materials Table 11. Standards for specification and approval of welding procedures Table 12. Additional standards for welding Table 13. Additional standards for non-destructive examination Table 14. Standards for flanges and bolting Table 15. Material standards for aluminium and copper Table 16. Material standards for pressure purposes – plates, forgings and castingsTable 17. Material standards for pressure purposes – steel tubesTable 18. Standards for material inspection and documentation
Ed Haynes CEN Consultant – Pressure Equipment
Table 1. Unfired pressure vessels, piping & steam boilers
Part Number
Pressure vessels
EN 13445
CEN/TC 54
Industrial piping
EN 13480
CEN/TC 267
Water tube boilers
EN 12952
CEN/TC 269
Shell boilersEN 12953
CEN/TC 269
Part 1 General General General GeneralPart 2 Materials Materials Materials MaterialsPart 3 Design Design & calc Design & calc Design & calcPart 4 Manufacture Fabrication &
installationWorkmanship
Part 5 Inspection & testing Inspection & testing Workmanship InspectionPart 6 Cast iron Buried piping Inspection Equipment Part 7 Equipment Firing systemsPart 8 *Aluminium *Aluminium Firing systems SafeguardsPart 9 Firing systems *Limiting devicesPart 10 Safeguards Feed waterPart 11 *Limiting
devicesAcceptance tests
Part 12 Feed water Firing systemsPart 13 Flue gas
cleaning*Operating instructions
Part 14 Denox systems
Part 15 Acceptance tests
Part 16 Fluidized bed firing
(*) denotes prEN status
Ed Haynes CEN Consultant – Pressure Equipment
Table 2. Valves and safety accessories – CEN/TC 69
EN 12516: SHELL DESIGN STRENGTH
Part 1 Tabulation methodPart 2 Calculation methodPart 3 Experimental methodPart 4* Calculation method for valve shells manufactured in metallic
materials other than steel
STANDARDS for TESTING OF VALVES
EN 12266-1 Tests, test procedures and acceptanceEN ISO 10497 Fire type testing requirements
INDUSTRIAL VALVE STANDARDS
Type Steel Cast iron Copper ThermoplasticGate EN 1984 EN 1171 EN 12288 prEN ISO 16139Ball prEN 1983 prEN 13547 prEN ISO 16135Globe EN 13709 EN 13789 / prEN ISO 21787Check prEN 14341 EN 12334 / prEN ISO 16137Diaphragm EN 13397 prEN ISO 16138Butterfly EN 593 prEN ISO 16136
EN ISO 4126: SAFETY DEVICES
Part 1 Safety valvesPart 2 Bursting disc safety devicesPart 3* Safety valves and bursting discs in combinationPart 4 Pilot operated safety valvesPart 5 Controlled safety pressure relief systems
Ed Haynes CEN Consultant – Pressure Equipment
Table 3. Transportable gas cylinders & portable fire extinguishers
CEN/TC 23
prEN 15045 Seamless aluminium alloy for CO2
Fire Extinguishers (FE)Design, manufacture & testing
prEN 15047 Seamless steel for FE & Breathing apparatus (BA)
Up to 15 litre capacity
EN 1964-1: 1999 Refillable seamless steel Stainless steelEN 1975: 1999 Refillable seamless aluminium alloy Up to 150 litresEN 12862: 2000 Refillable welded aluminium alloyEN 13322-1 Refillable welded steel Design & constructionEN 13322-2 Refillable welded stainless steel Design & constructionEN 12245 Fully wrapped compositeEN 12257 Seamless, hoop wrapped compositeprEN ISO 22435 Pressure regulators Integrated with cylinder valve
CEN/TC 70
prEN 3-8 Portable fire extinguishers Up to PS = 30 barprEN 3-9 Additional requirements for CO2
prEN 1866:1998 rev Mobile fire extinguishers
Table 4. Refrigeration systems & heat pumps – CEN/TC 182
REF. NO. TITLE SCOPEEN 378-1 Safety & environmental requirements Basic requirementsEN 378-2 Safety & environmental requirements Design, construction & testing
EN 378-3 Safety & environmental requirements
Installation & personnel protection
EN 378-4 Safety & environmental requirements
Operation, maintenance, repair & recovery
prEN 14276-1 Vessels General requirementsprEN 14276-2 PipingprEN 12693 Positive displacement compressorsEN 12284 Valves Testing & markingEN 13136 Pressure relief devices Method of calculationEN 12178 Liquid level indicators Testing & markingEN 12263:1998 Safety switching devices Requirements & tests
Ed Haynes CEN Consultant – Pressure Equipment
Table 5. Glass Reinforced Plastic tanks and vessels – CEN/TC 210
EN 13121 : GRP TANKS FOR USE ABOVE GROUND
Part 1 Raw materials acceptance and usagePart 2 Composite materials – chemical resistancePart 3* Design calculation and workmanshipPart 4 Delivery, installation and maintenance
prEN 13923: FILAMENT WOUND FRP PRESSURE VESSELS
Part 1 Materials, design, calculation, manufacturing and testing
Table 6. Static cryogenic pressure equipment – CEN/TC 268
EN 13458: Static vacuum insulated vessels
EN 14197: Static non-vacuum insulated vessels
Part 1: Fundamental requirementsPart 2: Design, fabrication, inspection and testing
Part 3: Operational requirements
PRODUCT SUPPORTING STANDARDS
EN 1252-1 Materials: Toughness requirements for temperatures below –800CEN 1252-2 Materials: Toughness requirements for between –800C and –100CEN 1797 Gas/material compatibility – Oxygen compatibilityEN 12213 Performance evaluation of thermal insulation
PRESSURE ACCESSORIES & SAFETY ACCESSORIES
EN 1626 ValvesEN 12300 Cleanliness for cryogenic serviceEN 12434 Cryogenic flexible hosesEN 13371 CouplingsEN 13275 PumpsEN 13648-1 Safety valvesEN 13648-2 Bursting discsEN 13648-3 Capacity and sizing
Ed Haynes CEN Consultant – Pressure Equipment
Table 7. Static LPG pressure equipment – CEN/TC 286
EN 12542: Welded steel cylindrical tanks – overground
EN 14075: Welded steel cylindrical tanks – underground
PRODUCT SUPPORTING STANDARDS
EN 13175 Specification and testing of LPG tank valvesEN 13799 Contents gauges for LPG tanksEN 14071 Ancillary equipmentEN 14129 Pressure relief valvesprEN 14570 Equipping LPG tanks
AUTOMOTIVE LPG EQUIPMENT STANDARDS
prEN 14678-1 Automotive LPG filling stations – equipment
Table 8. Miscellaneous harmonised product standards
TECHNICAL COMMITTEE
REF. NO. SCOPE
CEN/TC 54prEN 13831 Closed expansion vessels
EN 764-5 Technical documentationEN 764-7 Safety systems
prEN 14359 Gas loaded accumulatorsCEN/TC 69 EN 19 Marking of valvesCEN/TC 269 EN 14222 Stainless steel shell boilersCEN/TC 194 EN 12778 Pressure cookersCEN/TC 221 EN 14125 Underground pipework for petrol stations
CEN/TC 235EN 334 Gas pressure regulators up to 100bar
EN 13482 Gas safety shut off devicesprEN 13787 rev Elastomers for gas pressure regulatorsWI 00235010 Control valves for gas supply systems
Ed Haynes CEN Consultant – Pressure Equipment
Table 9. Non-destructive examination of welds – CEN/TC 121
Technique Ref. No. Scope
General rules. EN 12062: 1997 General rules for metallic materials Radiographic examination
EN 1435: 1997 Radiographic examination of welded jointsEN 12517: 1998 Acceptance levels for indications from
imperfections
Ultrasonic examination
EN 1714: 1997 Methods for manual ultrasonic examination of fusion welded joints
EN 1712: 1997 Acceptance levels EN 1713: 1998 Characterization of indications in weldsISO/AWI 22825 Welds in austenitic steel
Magnetic particle examination
EN 1290 Techniques for detection of surface imperfections in ferromagnetic welds including HAZ.
EN 1291: 1998 Acceptance levels.Eddy current examination
EN 1711: 2000 Examination of welds by complex plane analysis
Penetrant testing
EN 1289: 1998 Acceptance levels
Visual examination
EN 970: 1997 Methods for visual examinationEN 25817 Acceptance levels
Table 10. Destructive tests on welds in metallic materials – CEN/TC 121
Technique Ref. No. Scope
Mechanical testsEN ISO 9018 Tensile test on cruciform & lapped joints prEN ISO 17655 Samples for delta ferrite measurement ISO/CD 15653 Method of determining K1c, CTOD &
critical J values
Cracking tests for weldments
EN ISO 17641-1 Hot cracking – generalEN ISO 17641-2 Hot cracking – self restraint testsISO/TR 17641-3 Hot cracking – Externally loaded testsEN ISO 17642-1 Cold cracking – generalEN ISO 17642-2 Cold cracking – self restraint testsEN ISO 17642-3 Cold cracking – Externally loaded tests
Ed Haynes CEN Consultant – Pressure Equipment
Table 11. Standards for specification & approval of welding procedures – CEN/TC 121
Process Arc Welding Gas WeldingGeneral Rules EN ISO 15607Guidelines for a grouping system
CR ISO / TR 15608
Welding procedure specification EN ISO 15609-1 EN ISO 15609-2Approved consumables EN ISO 15610Previous welding procedure EN ISO 15611Standard procedure EN ISO 15612Pre-production test EN ISO 15613
Welding procedure test EN ISO 15614Part 1: Steel / NickelPart 2: AluminiumPart 3*: Cast ironPart 4*: Aluminium castingsPart 5: Titanium / zirconiumPart 6*: CopperPart 7*: SurfacingPart 8: Tube to tube sheetPart 11: Electron & laser beamPart 12: Spot, seam & projectionPart 13: Flash & butt welding
Additional Standards in this series cover the following welding procedures specification
EN 15609-3 - Electron Beam WeldingEN 15609-4 - Laser Beam WeldingEN 15609-5 - Resistance Welding
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Table 12. Additional standards for welding – CEN/TC 121
Subject Ref. No. Scope
Approval testing of welders
EN 287-1 SteelsEN ISO 9606-2 Aluminium alloysEN ISO 9606-3 Copper & copper alloysEN ISO 9606-4 Nickel & nickel alloysEN ISO 9606-5 Titanium & zirconium & alloysprEN 287-2: 1992 Aluminium and aluminium alloys
Recommendations for welding metallic materials
EN 1011-1: 1998/A1 and A2
General guidance for arc welding
EN 1011-2: 2001 Arc welding of ferritic steelEN 1011-3: 2000 Arc welding of stainless steelEN 1011-4: 2000 Arc welding of aluminium and alloysEN 1011-5 Welding of clad steelEN ISO 15620 Friction welding of metallic materialsEN ISO 14555 Arc stud welding of metallic materialsEN ISO 13919-2 Electron & laser beam
Quality levelsEN ISO 5817 Fusion welded jointsEN ISO 14554-1 Resistance welding: ComprehensiveEN ISO 14554-2 Resistance welding: Elementary
Recommendation for joint preparation
PrEN ISO 9692-1 Manual metal-arc, gas shielded metal arc & gas welding of steel
EN ISO 9692-2 Submerged arc welding of steelEN ISO 9692-3 MIG & TIG welding of aluminium & alloysEN ISO 9692-4 Clad steelsEN ISO 6520-2 Classification of geometric imperfections
– Welding with pressureEN ISO 9013 Classification of thermal cuts
Basic welded joint Details in steel
EN 1708-1 Pressurized components
BrazingEN 13133: 2000 Brazer approvalEN 13134: 2000 Procedure approvalEN 12799: 2000 NDE of brazed jointsEN 12797: 2000 Destructive tests of brazed joints
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Table 13. Additional standards for non-destructive examination – CEN/TC 138
Technique Ref. No. Scope
NDT personnel EN 473: 2000 Qualification & certification of NDT personnel
Visual examination EN 13018 General principlesMagnetic particle EN ISO 9934-1 General principlesPenetrant testing EN 571-1:
1997/prA1General principles
Eddy current EN 12084 General principles and guidelinesRadiographic EN 444: 1994 General principles for X and gamma rays
EN 13068-3 General principles of radioscopic testing by X & gamma rays
Leak testing
EN 1779: 1999 Criteria for method and technique selectionprEN 13184 Pressure change methodEN 1593: 1999 Bubble emission techniqueEN 13185 Tracer gas method
Acoustic emission EN 13554 General principles prEN 14584 Acoustic emission during proof test
Ultrasonic
EN 583-1: 1998 General principlesEN 583-3: 1997/prA1
Transmission technique
EN 583-4: 2002 Discontinuities perpendicular to surfaceEN 583-5: 2000 Characterization and sizing of defects583-6 TOFD techniques for detecting defectsEN 14127:2004 Ultrasonic thickness measurement
Table 14. Standards for flanges & bolting – CEN/TC 74
Component Ref. No. Scope
PN designated flanges
prEN 1092 -1rev
Steel flanges – PN designated
prEN 1092 -2rev
Cast iron flanges – PN designated
EN 1092 -4 Aluminium alloy flanges – PN designatedEN 1515-1 Selection of boltingEN 1515-2 Combination of flange & bolting materials for
steel flanges
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Class designated flanges
EN 1759 -1 Steel flanges – Class designated.EN 1759 -4 Aluminium alloy flanges – Class designated.prEN 1515-3 Classification of bolt materials for steel flanges,
class designatedDesign rules for gasketed flange connections
EN 1591-1 Calculation methodprEN 1591-2 rev
Gasket parameters
WI 00074018 Calculation method for P/T ratings
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Table 15. Material standards for aluminium & copper
Aluminium & aluminium alloys –CEN/TC 132
Copper & copper alloys – CEN/TC133
Ref. No Scope Ref. No. Scope
EN 485-1 Technical delivery conditions
EN 1652 Plate, sheet, strip & circles – general
prEN 485-2 Sheet strip & plate properties
EN 1653 For boilers, pressure vessels & hot water
EN 573-4 Wrought products – chemical composition
EN 1982 Ingots & castings
EN 12392 Wrought products for pressure equipment
EN 12420 Forgings
EN 13957 Extruded tube for general application
EN 12451 Seamless round tube – heat exchangers
EN 13958 Cold drawn tube for general application
EN 12452 Rolled finned seamless tube
EN 754-2 Cold drawn rod & tube – properties
EN 12735-1 Seamless round tube –for piping systems
EN 755-2 Extruded rod, bar & tube EN 12735-2 Seamless round tube – for equipment
EN 1706 Castings EN 13348 Seamless round tube – for medical gases
Ed Haynes CEN Consultant – Pressure Equipment
Table 16. Material standards for pressure purposes – plates, forgings & castings
ECISS/TC
EN No. Type Scope
TC 1010163-1
(Structural steel)
Hot rolled steel plates – general req’ts10163-2 Plates and wide flats10163-3 Sections10164 Technical delivery conditions
TC 22 10028-1
Flat products made of steel for pressure purposes (some revisions pending)
General requirements10028-2 Non-alloy and alloy steels with specified
elevated temperature properties10028-3 Weldable fine grain steels, normalized10028-4 Nickel alloy steels with specified low
temperature properties 10028-5 Weldable fine grain steels,
thermomechanically rolled10028-6 Weldable fine grain steels, quenched &
tempered10028-7 Stainless steels10269
Steel bars for pressure purposes
Steels & nickel alloys for fasteners with specified elevated &/or low temperature properties
10272 Stainless steel bars for pressure purposes10273 Hot rolled weldable steel bars for pressure
purposes with specified elevated temperature properties
TC 28 10222-1Steel forgings for pressure purposes (some revisions pending)
General requirements for open die forgings10222-2 Ferritic & martensitic steels with specified
elevated temperature properties10222-3 Nickel steels with specified low
temperature properties10222-4 Weldable fine grain steels with high proof
strength10222-5 Martensitic, austenitic & austenitic-ferritic
stainless steelsTC 31 10213-1 Steel castings
for pressure purposes – Technical delivery conditions
General10213-2 Steel grades for use at room temperature
& elevated temperature10213-3 Steel grades for use at low temperatures10213-4 Austenitic & austenitic-ferritic steel grades
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Table 17. Material standards for pressure purposes – steel tubes
ECISS/TC
EN No. Type Scope
TC 29
10216-1Seamless steel tubes for pressure purposes – Technical delivery conditions
Non-alloy steel tubes with specified room temperature properties
10216-2 Non-alloy & alloy steel tubes with specified elevated temperature properties
10216-3 Non-alloy & alloy fine grain steel tubes10216-4 Non-alloy & alloy steel tube with specified low
temperature properties10216-5 Stainless steel tubes10217-1
Welded steel tubes for pressure purposes – Technical delivery conditions
Non-alloy steel tubes with specified room temperature properties
10217-2 Electric welded non-alloy and alloy steel tubes with specified elevated temperature properties
10217-3 Alloy fine grain steel tubes10217-4 Electric welded non-alloy & alloy steel tubes
with specified low temperature properties10217-5 Submerged arc welded non-alloy & alloy
steel tubes with specified elevated temperature properties
10217-6 Submerged arc welded non-alloy steel tubes with specified low temperature properties
10217-7 Stainless steel tubes10305-4 Seamless
CD tubesHydraulic & pneumatic power systems
(*) denotes prEN status
Table 18. Standards for material inspection & documentation – ECISS/TC 9
EN 10168:2004 Inspection documents – List of information & description
EN 10204: 2004 Metallic materials – Types of inspection documents
Category I Pressure Equipment
Category II, III and IV Pressure Equipment
Non Specific Inspection & Test Specific Inspection & Test
Document types: 2.1= declaration of
compliance; 2.2 = test report
Document Type 3.1(Quality Assurance
system)
Document Type 3.2
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