• EN ISO 6520-1:2007

    Current The latest, up-to-date edition.

    Welding and allied processes - Classification of geometric imperfections in metallic materials - Part 1: Fusion welding (ISO 6520-1:2007)

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    Language(s): 

    Published date:  01-07-2007

    Publisher:  Comite Europeen de Normalisation

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Introduction
    1 Scope
    2 Terms and definitions
    3 Classification and explanation of imperfections
    4 Types of crack
    5 Designation
    Annex A (informative) Cracking phenomena
    Annex B (informative) Correspondence between the existing
            classification of imperfections and the designation
            system according to ISO/TS 17845
    Bibliography
    Alphabetical index

    Abstract - (Show below) - (Hide below)

    ISO 6520-1:2007 serves as the basis for a precise classification and description of weld imperfections.In order to avoid any confusion, the types of imperfection are defined with explanations and illustrations where necessary.Metallurgical imperfections are not included.Another system for the designation of imperfections is possible according to ISO/TS 17845. A correspondence is given between the existing classification of imperfections according to ISO 6520-1:2007 and the designation system according to ISO/TS 17845:2004.

    General Product Information - (Show below) - (Hide below)

    Committee CEN/TC 121
    Document Type Standard
    Publisher Comite Europeen de Normalisation
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    17/30364387 DC : 0 BS EN 50069 - HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - GAS-FILLED WELDED COMPOSITE ENCLOSURES OF CAST AND WROUGHT ALUMINIUM ALLOYS
    16/30326248 DC : 0 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 M[3] - DESIGN AND MANUFACTURE
    08/30184309 DC : DRAFT SEP 2008 BS EN 12952-5 - WATER-TUBE BOILERS AND AUXILIARY INSTALLATIONS - PART 5: WORKMANSHIP AND CONSTRUCTION OF PRESSURE PARTS OF THE BOILER
    PD CEN/TR 14599:2005 Terms and definitions for welding purposes in relation with EN 1792
    PREN 12493 : DRAFT 2013 LPG EQUIPMENT AND ACCESSORIES - WELDED STEEL PRESSURE VESSELS FOR LPG ROAD TANKERS - DESIGN AND MANUFACTURE
    13/30259076 DC : 0 BS EN 13445-8 - UNFIRED PRESSURE VESSELS - PART 8: ADDITIONAL REQUIREMENTS FOR PRESSURE VESSELS OF ALUMINIUM AND ALUMINIUM ALLOYS
    PREN 1442 : DRAFT 2014 LPG EQUIPMENT AND ACCESSORIES - TRANSPORTABLE REFILLABLE WELDED STEEL CYLINDERS FOR LPG - DESIGN AND CONSTRUCTION
    I.S. EN 16603-32-01:2014 SPACE ENGINEERING - FRACTURE CONTROL
    PREN 764-1 : DRAFT 2013 PRESSURE EQUIPMENT - PART 1: VOCABULARY
    UNI EN 1090-3 : 2008 EXECUTION OF STEEL STRUCTURES AND ALUMINIUM STRUCTURES - PART 3: TECHNICAL REQUIREMENTS FOR ALUMINIUM STRUCTURES
    09/30211880 DC : 0 BS EN 12732 - GAS INFRASTRUCTURE - WELDING STEEL PIPEWORK - FUNCTIONAL REQUIREMENTS
    DIN 4099-2:2003-08 WELDING OF REINFORCING STEEL - PART 2: QUALITY ASSURANCE
    04/30125238 DC : DRAFT NOV 2004 EN 15085-3 - RAILWAY APPLICATIONS - WELDING OF RAILWAY VEHICLES AND COMPONENTS - PART 3: DESIGN REQUIREMENTS
    CEN/TR 14599:2005 Terms and definitions for welding purposes in relation with EN 1792
    PREN 14140 : DRAFT 2012 LPG EQUIPMENT AND ACCESSORIES - TRANSPORTABLE REFILLABLE WELDED STEEL CYLINDERS FOR LPG - ALTERNATIVE DESIGN AND CONSTRUCTION
    BS EN 14917 : 2009 METAL BELLOWS EXPANSION JOINTS FOR PRESSURE APPLICATIONS
    BS EN 1011-6:2005 Welding. Recommendations for welding of metallic materials Laser beam welding
    EN 14917:2009+A1:2012 Metal bellows expansion joints for pressure applications
    I.S. EN 12493:2013 LPG EQUIPMENT AND ACCESSORIES - WELDED STEEL PRESSURE VESSELS FOR LPG ROAD TANKERS - DESIGN AND MANUFACTURE
    ONORM EN 1090-3 : 2008 EXECUTION OF STEEL STRUCTURES AND ALUMINIUM STRUCTURES - PART 3: TECHNICAL REQUIREMENTS FOR ALUMINIUM STRUCTURES
    ISO/TR 25107:2006 Non-destructive testing Guidelines for NDT training syllabuses
    NF EN 12542 : 2011 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 M[3] - DESIGN AND MANUFACTURE
    I.S. EN ISO 15607:2004 SPECIFICATION AND QUALIFICATION OF WELDING PROCEDURES FOR METALLIC MATERIALS - GENERAL RULES
    DIN EN 14197-2:2006-11 CRYOGENIC VESSELS - STATIC NON-VACUUM INSULATED VESSELS - PART 2: DESIGN, FABRICATION, INSPECTION AND TESTING
    DIN EN 12732:2014-07 Gas infrastructure - Welding steel pipework - Functional requirements (includes Amendment A1:2014)
    DIN EN 12952-6:2011-10 Water-tube boilers and auxiliary installations - Part 6: Inspection during construction; documentation and marking of pressure parts of the boiler
    DIN EN 14879-1 E : 2005 ORGANIC COATING SYSTEMS AND LININGS FOR PROTECTION OF INDUSTRIAL APPARATUS AND PLANTS AGAINST CORROSION CAUSED BY AGGRESSIVE MEDIA - PART 1: TERMINOLOGY, DESIGN AND PREPARATION OF SUBSTRATE
    BS EN 4678:2011 Aerospace series. Weldments and brazements for aerospace structures. Joints of metallic materials by laser beam welding. Quality of weldments
    DIN EN 14879-1:2005-12 Organic coating systems and linings for protection of industrial apparatus and plants against corrosion caused by aggressive media - Part 1: Terminology, design and preparation of substrate
    DIN EN 14893:2014-09 LPG EQUIPMENT AND ACCESSORIES - TRANSPORTABLE LIQUEFIED PETROLEUM GAS (LPG) WELDED STEEL PRESSURE DRUMS WITH A CAPACITY BETWEEN 150 LITRES AND 1000 LITRES
    BS 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
    ISO 9606-5:2000 Approval testing of welders — Fusion welding — Part 5: Titanium and titanium alloys, zirconium and zirconium alloys
    BS EN 1011-7:2004 Welding. Recommendations for welding of metallic materials Electron beam welding
    BS EN 489:2009 District heating pipes. Preinsulated bonded pipe systems for directly buried hot water networks. Joint assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene
    BS EN 14075:2002 Static welded steel cylindrical tanks, serially produced for the storage of liquefied petroleum gas (LPG) having a volume not greater than 13 m3 and for installation underground. Design and manufacture
    EN 12517-1:2006 Non-destructive testing of welds - Part 1: Evaluation of welded joints in steel, nickel, titanium and their alloys by radiography - Acceptance levels
    EN 13312-4:2001 Biotechnology - Performance criteria for piping and instrumentation - Part 4: Tubes and pipes
    EN 15085-3:2007/AC:2009 RAILWAY APPLICATIONS - WELDING OF RAILWAY VEHICLES AND COMPONENTS - PART 3: DESIGN REQUIREMENTS
    EN 50052:2016 High-voltage switchgear and controlgear - Gas-filled cast aluminium alloy enclosures
    EN 12517-2:2008 Non-destructive testing of welds - Part 2: Evaluation of welded joints in aluminium and its alloys by radiography - Acceptance levels
    EN 12952-5:2011 Water-tube boilers and auxiliary installations - Part 5: Workmanship and construction of pressure parts of the boiler
    EN 1011-7:2004 Welding - Recommendations for welding of metallic materials - Part 7: Electron beam welding
    EN 13458-2:2002/AC:2006 CRYOGENIC VESSELS - STATIC VACUUM INSULATED VESSELS - PART 2: DESIGN, FABRICATION, INSPECTION AND TESTING
    UNI EN 12732 : 2014 GAS INFRASTRUCTURE - WELDING STEEL PIPEWORK - FUNCTIONAL REQUIREMENTS
    EN 13530-2:2002/AC:2006 CRYOGENIC VESSELS - LARGE TRANSPORTABLE VACUUM-INSULATED VESSELS - PART 2: DESIGN, FABRICATION, INSPECTION AND TESTING
    I.S. EN 15085-3:2007 RAILWAY APPLICATIONS - WELDING OF RAILWAY VEHICLES AND COMPONENTS - PART 3: DESIGN REQUIREMENTS
    DIN EN 14917:2012-06 Metal bellows expansion joints for pressure applications (includes Amendment A1:2012)
    14/30301120 DC : 0 BS EN 4677-001 - AEROSPACE SERIES - WELDED AND BRAZED ASSEMBLIES FOR AEROSPACE CONSTRUCTIONS - JOINTS OF METALLIC MATERIALS BY ELECTRON BEAM WELDING - PART 001: QUALITY OF WELDED ASSEMBLIES
    PREN 1090-3 : DRAFT 2017 EXECUTION OF STEEL STRUCTURES AND ALUMINIUM STRUCTURES - PART 3: TECHNICAL REQUIREMENTS FOR ALUMINIUM STRUCTURES
    BS EN 12493 : 2013 LPG EQUIPMENT AND ACCESSORIES - WELDED STEEL PRESSURE VESSELS FOR LPG ROAD TANKERS - DESIGN AND MANUFACTURE
    03/115225 DC : DRAFT SEP 2003 BS EN 1011-6 - WELDING - RECOMMENDATION FOR WELDING OF METALLIC MATERIALS - PART 6: LASER BEAM WELDING
    14/30300966 DC : 0 BS EN 1442 - LPG EQUIPMENT AND ACCESSORIES - TRANSPORTABLE REFILLABLE WELDED STEEL CYLINDERS FOR LPG - DESIGN AND CONSTRUCTION
    13/30248693 DC : 0 BS EN 14893 - LPG EQUIPMENT AND ACCESSORIES - TRANSPORTABLE LIQUEFIED PETROLEUM GAS (LPG) WELDED STEEL PRESSURE DRUMS WITH A CAPACITY BETWEEN 150 LITRES AND 1000 LITRES
    BS EN 13445-5 : 2014 UNFIRED PRESSURE VESSELS - PART 5: INSPECTION AND TESTING
    16/30336476 DC : 0 BS EN 287-6 - QUALIFICATION TEST OF WELDERS - FUSION WELDING - PART 6: CAST IRON
    13/30274227 DC : 0 BS EN 764-1 - PRESSURE EQUIPMENT - PART 1: VOCABULARY
    PREN 12732 : DRAFT 2009 GAS INFRASTRUCTURE - WELDING STEEL PIPEWORK - FUNCTIONAL REQUIREMENTS
    03/105149 DC : DRAFT MAR 2003 PREN 14620-2 - DESIGN AND MANUFACTURE OF SITE BUILT, VERTICAL, CYLINDRICAL, FLAT-BOTTOMED STEEL TANKS FOR THE STORAGE OF REFRIGERATED, LIQUEFIED GASES WITH OPERATING TEMPERATURES BETWEEN -5 DEGREES C AND -165 DEGREES C - PART 2: METALLIC COMPONENTS
    15/30303100 DC : 0 BS EN 50052 - CAST ALUMINIUM ALLOY ENCLOSURES FOR GAS-FILLED HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR
    17/30361562 DC : 0 BS EN 4677-001 - AEROSPACE SERIES - WELDED AND BRAZED ASSEMBLIES FOR AEROSPACE CONSTRUCTIONS - JOINTS OF METALLIC MATERIALS BY ELECTRON BEAM WELDING - PART 001: QUALITY OF WELDED ASSEMBLIES
    11/30253901 DC : 0 BS EN 13445-5 - UNFIRED PRESSURE VESSELS - PART 5: INSPECTION AND TESTING
    BS EN 50052:2016 High-voltage switchgear and controlgear. Gas-filled cast aluminium alloy enclosures
    08/30184312 DC : DRAFT SEP 2008 BS EN 12952-6 - WATER-TUBE BOILERS AND AUXILIARY INSTALLATIONS - PART 6: INSPECTION DURING CONSTRUCTION; DOCUMENTATION AND MARKING OF PRESSURE PARTS OF THE BOILER
    00/716910 DC : DRAFT NOV 2000 BS EN ISO 15614-2 - SPECIFICATION AND APPROVAL OF WELDING PROCEDURES FOR METALLIC MATERIALS - WELDING PROCEDURE TEST - PART 2: ARC WELDING OF ALUMINIUM AND ITS ALLOYS
    BS EN 13445-8 : 2014 UNFIRED PRESSURE VESSELS - PART 8: ADDITIONAL REQUIREMENTS FOR PRESSURE VESSELS OF ALUMINIUM AND ALUMINIUM ALLOYS
    EN 13445-5 : 2014 COR 2017 UNFIRED PRESSURE VESSELS - PART 5: INSPECTION AND TESTING
    I.S. EN 13445-8:2014 UNFIRED PRESSURE VESSELS - PART 8: ADDITIONAL REQUIREMENTS FOR PRESSURE VESSELS OF ALUMINIUM AND ALUMINIUM ALLOYS
    UNE-EN 13445-5:2015 Unfired pressure vessels - Part 5: Inspection and testing
    UNI CEN/TR 14599 : 2012 TERMS AND DEFINITIONS FOR WELDING PURPOSES IN RELATION WITH EN 1792
    UNE-EN 12952-6:2012 Water-tube boilers and auxiliary installations - Part 6: Inspection during construction; documentation and marking of pressure parts of the boiler
    I.S. EN 50052:2016 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - GAS-FILLED CAST ALUMINIUM ALLOY ENCLOSURES
    DIN EN 12517-1:2006-06 NON-DESTRUCTIVE TESTING OF WELDS - PART 1: EVALUATION OF WELDED JOINTS IN STEEL, NICKEL, TITANIUM AND THEIR ALLOYS BY RADIOGRAPHY - ACCEPTANCE LEVELS
    DIN EN 1011-7:2004-10 Welding - Recommendations for welding of metallic materials - Part 7: Electron beam welding
    DIN EN 1442:2008-04 LPG EQUIPMENT AND ACCESSORIES - TRANSPORTABLE REFILLABLE WELDED STEEL CYLINDERS FOR LPG - DESIGN AND CONSTRUCTION
    DIN EN 1011-6:2006-03 WELDING - RECOMMENDATION FOR WELDING OF METALLIC MATERIALS - PART 6: LASER BEAM WELDING
    UNE-EN 12542:2011 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 - Design and manufacture
    BS EN ISO 13919-2:2001 Welding. Electron and laser beam welded joints. Guidance on quality levels for imperfections Aluminium and its weldable alloys
    BS EN 14197-2 : 2003 CRYOGENIC VESSELS - STATIC NON-VACUUM INSULATED VESSELS - PART 2: DESIGN, FABRICATION, INSPECTION AND TESTING
    I.S. EN 12542:2010 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 M[3] - DESIGN AND MANUFACTURE
    DIN EN 12953-5:2002-08 SHELL BOILERS - PART 5: INSPECTION DURING CONSTRUCTION, DOCUMENTATION AND MARKING OF PRESSURE PARTS OF THE BOILER
    DIN EN 12542:2010-12 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 M[3] - DESIGN AND MANUFACTURE
    I.S. EN 12952-6:2011 WATER-TUBE BOILERS AND AUXILIARY INSTALLATIONS - PART 6: INSPECTION DURING CONSTRUCTION; DOCUMENTATION AND MARKING OF PRESSURE PARTS OF THE BOILER
    I.S. EN 12732:2013 GAS INFRASTRUCTURE - WELDING STEEL PIPEWORK - FUNCTIONAL REQUIREMENTS
    I.S. EN 1442:2017 LPG EQUIPMENT AND ACCESSORIES - TRANSPORTABLE REFILLABLE WELDED STEEL CYLINDERS FOR LPG - DESIGN AND CONSTRUCTION
    I.S. EN 14140:2014 LPG EQUIPMENT AND ACCESSORIES - TRANSPORTABLE REFILLABLE WELDED STEEL CYLINDERS FOR LPG - ALTERNATIVE DESIGN AND CONSTRUCTION
    EN ISO 13919-2:2001/A1:2003 WELDING - ELECTRON AND LASER BEAM WELDED JOINTS - GUIDANCE ON QUALITY LEVELS FOR IMPERFECTIONS - PART 2: ALUMINIUM AND ITS WELDABLE ALLOYS
    I.S. EN 14893:2014 LPG EQUIPMENT AND ACCESSORIES - TRANSPORTABLE LIQUEFIED PETROLEUM GAS (LPG) WELDED STEEL PRESSURE DRUMS WITH A CAPACITY BETWEEN 150 LITRES AND 1000 LITRES
    I.S. EN 12952-5:2011 WATER-TUBE BOILERS AND AUXILIARY INSTALLATIONS - PART 5: WORKMANSHIP AND CONSTRUCTION OF PRESSURE PARTS OF THE BOILER
    I.S. EN ISO 13919-2:2002 WELDING - ELECTRON AND LASER BEAM WELDED JOINTS - GUIDANCE ON QUALITY LEVELS FOR IMPERFECTIONS - PART 2: ALUMINIUM AND ITS WELDABLE ALLOYS
    DIN EN 12732:2000-09 GAS INFRASTRUCTURE - WELDING STEEL PIPEWORK - FUNCTIONAL REQUIREMENTS
    I.S. EN 14398-2:2003 CRYOGENIC VESSELS - LARGE TRANSPORTABLE NON-VACUUM INSULATED VESSELS - PART 2: DESIGN, FABRICATION, INSPECTION AND TESTING
    DIN EN 12493:2017-01 LPG EQUIPMENT AND ACCESSORIES - WELDED STEEL PRESSURE VESSELS FOR LPG ROAD TANKERS - DESIGN AND MANUFACTURE
    UNI EN 12493 : 2014 LPG EQUIPMENT AND ACCESSORIES - WELDED STEEL PRESSURE VESSELS FOR LPG ROAD TANKERS - DESIGN AND MANUFACTURE
    UNI EN 15085-3 : 2008 RAILWAY APPLICATIONS - WELDING OF RAILWAY VEHICLES AND COMPONENTS - PART 3: DESIGN REQUIREMENTS
    VDI 2083 Blatt 13.2:2009-01 Cleanroom technology - Quality, production and distribution of ultrapure water - Microelectronics and other technical applications
    VDI 2083 Blatt 13.1:2009-01 Cleanroom technology - Quality, production and distribution of ultrapure water - Fundamentals
    PD CEN ISO/TR 25107:2006 Non-destructive testing. Guidelines for NDT training syllabuses
    PREN 14620-2 : DRAFT 2003 DESIGN AND MANUFACTURE OF SITE BUILT, VERTICAL, CYLINDRICAL, FLAT-BOTTOMED STEEL TANKS FOR THE STORAGE OF REFRIGERATED, LIQUEFIED GASES WITH OPERATING TEMPERATURES BETWEEN -5 DEGREE C AND -165 DEGREE C - PART 2: METALLIC COMPONENTS
    CEI EN 50052 : 1998 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - GAS-FILLED CAST ALUMINIUM ALLOY ENCLOSURES
    08/30180502 DC : DRAFT JUNE 2008 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 M[3] - DESIGN AND MANUFACTURE
    13/30266592 DC : 0 BS EN 12493 - LPG EQUIPMENT AND ACCESSORIES - WELDED STEEL PRESSURE VESSELS FOR LPG ROAD TANKERS - DESIGN AND MANUFACTURE
    PREN 50069 : DRAFT 2017 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - GAS-FILLED WELDED COMPOSITE ENCLOSURES OF CAST AND WROUGHT ALUMINIUM ALLOYS
    DIN EN 12517-2:2008-12 NON DESTRUCTIVE TESTING OF WELDS - PART 2: EVALUATION OF WELDED JOINTS IN ALUMINIUM AND ITS ALLOYS BY RADIOGRAPHY - ACCEPTANCE LEVELS
    DD CEN/TS 15053:2005 Non-destructive testing. Recommendations for discontinuities-types in test specimens for examination
    07/30165594 DC : DRAFT AUG 2007 BS EN 12493 - LPG EQUIPMENT AND ACCESSORIES - WELDED STEEL TANKS FOR LIQUEFIED PETROLEUM GAS (LPG) - ROAD TANKERS DESIGN AND MANUFACTURE
    12/30248681 DC : 0 BS EN 14140 - LPG EQUIPMENT AND ACCESSORIES - TRANSPORTABLE REFILLABLE WELDED STEEL CYLINDERS FOR LPG - ALTERNATIVE DESIGN AND CONSTRUCTION
    04/30109196 DC : DRAFT FEB 2004 EN 14879 - ORGANIC COATING SYSTEMS AND LININGS FOR PROTECTION OF INDUSTRIAL APPARATUS AND PLANTS AGAINST CORROSION CAUSED BY AGGRESSIVE MEDIA - PART 1: TERMINOLOGY, DESIGN AND PREPARATION OF SUBSTRATE
    04/30118252 DC : DRAFT AUG 2004 EN 14917 - METAL BELLOWS EXPANSION JOINTS FOR PRESSURE APPLICATIONS
    DIN EN 14917 E : 2012 METAL BELLOWS EXPANSION JOINTS FOR PRESSURE APPLICATIONS
    I.S. EN 1090-3:2008 EXECUTION OF STEEL STRUCTURES AND ALUMINIUM STRUCTURES - PART 3: TECHNICAL REQUIREMENTS FOR ALUMINIUM STRUCTURES
    PREN 287-6 : DRAFT 2016 QUALIFICATION TEST OF WELDERS - FUSION WELDING - PART 6: CAST IRON
    CEN ISO/TR 25107:2006 Non-destructive testing - Guidelines for NDT training syllabuses (ISO/TR 25107:2006)
    PREN 12542 : DRAFT 2016 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 M[3] - DESIGN AND MANUFACTURE
    DIN EN 287-6:2016-03 (Draft) QUALIFICATION TEST OF WELDERS - FUSION WELDING - PART 6: CAST IRON
    UNE-EN 12952-5:2012 Water-tube boilers and auxiliary installations - Part 5: Workmanship and construction of pressure parts of the boiler
    EN 1090-3:2008 Execution of steel structures and aluminium structures - Part 3: Technical requirements for aluminium structures
    I.S. CEN ISO TS 17845:2004 WELDING AND ALLIED PROCESSES - DESIGNATION SYSTEM FOR IMPERFECTIONS
    I.S. EN 14917:2009 METAL BELLOWS EXPANSION JOINTS FOR PRESSURE APPLICATIONS
    DIN EN 15085-3:2010-01 Railway applications - Welding of railway vehicles and components - Part 3: Design requirements
    DIN EN 14140:2015-03 LPG EQUIPMENT AND ACCESSORIES - TRANSPORTABLE REFILLABLE WELDED STEEL CYLINDERS FOR LPG - ALTERNATIVE DESIGN AND CONSTRUCTION
    BS EN 16603-32-01:2014 Space engineering. Fracture control
    BS EN 15085-3:2007 Railway applications. Welding of railway vehicles and components Design requirements
    ISO 13919-2:2001 Welding Electron and laser beam welded joints Guidance on quality levels for imperfections Part 2: Aluminium and its weldable alloys
    EN 1011-6:2005 Welding - Recommendation for welding of metallic materials - Part 6: Laser beam welding
    UNI EN 12542 : 2010 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 MUE - DESIGN AND MANUFACTURE
    I.S. EN 489:2009 DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - JOINT ASSEMBLY FOR STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE
    EN 12542:2010 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 - Design and manufacture
    EN 14532-3:2004 Welding consumables - Test methods and quality requirements - Part 3: Conformity assessment of wire electrodes, wires and rods for welding of aluminium alloys
    UNI EN 4678 : 2012 AEROSPACE SERIES - WELDMENTS AND BRAZEMENTS FOR AEROSPACE STRUCTURES - JOINTS OF METALLIC MATERIALS BY LASER BEAM WELDING - QUALITY OF WELDMENTS
    UNI EN 12952-5 : 2011 WATER-TUBE BOILERS AND AUXILIARY INSTALLATIONS - PART 5: WORKMANSHIP AND CONSTRUCTION OF PRESSURE PARTS OF THE BOILER
    UNI EN 489 : 2009 DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - JOINT ASSEMBLY FOR STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE
    UNI EN 14398-2 : 2008 CRYOGENIC VESSELS - LARGE TRANSPORTABLE NON-VACUUM INSULATED VESSELS - PART 2: DESIGN, FABRICATION, INSPECTION AND TESTING
    UNI EN 14893 : 2014 LPG EQUIPMENT AND ACCESSORIES - TRANSPORTABLE LIQUEFIED PETROLEUM GAS (LPG) WELDED STEEL PRESSURE DRUMS WITH A CAPACITY BETWEEN 150 LITRES AND 1000 LITRES
    UNI EN 14140 : 2015 LPG EQUIPMENT AND ACCESSORIES - TRANSPORTABLE REFILLABLE WELDED STEEL CYLINDERS FOR LPG - ALTERNATIVE DESIGN AND CONSTRUCTION
    EN 1011-4:2000/A1:2003 WELDING - RECOMMENDATIONS FOR WELDING OF METALLIC MATERIALS - PART 4: ARC WELDING OF ALUMINIUM AND ALUMINIUM ALLOYS
    UNI EN 13458-2 : 2004 CRYOGENIC VESSELS - STATIC VACUUM INSULATED VESSELS - PART 2: DESIGN, FABRICATION, INSPECTION AND TESTING
    UNI EN 12952-6 : 2011 WATER-TUBE BOILERS AND AUXILIARY INSTALLATIONS - PART 6: INSPECTION DURING CONSTRUCTION; DOCUMENTATION AND MARKING OF PRESSURE PARTS OF THE BOILER
    UNI EN 13530-2 : 2004 CRYOGENIC VESSELS - LARGE TRANSPORTABLE VACUUM INSULATED VESSELS - PART 2: DESIGN, FABRICATION, INSPECTION AND TESTING
    DIN EN 14893 E : 2014 LPG EQUIPMENT AND ACCESSORIES - TRANSPORTABLE LIQUEFIED PETROLEUM GAS (LPG) WELDED STEEL PRESSURE DRUMS WITH A CAPACITY BETWEEN 150 LITRES AND 1000 LITRES
    PREN 50052 : DRAFT 2015 CAST ALUMINIUM ALLOY ENCLOSURES FOR GAS-FILLED HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR
    PREN 12953-5 : DRAFT 2018 SHELL BOILERS - PART 5: INSPECTION DURING CONSTRUCTION, DOCUMENTATION AND MARKING OF PRESSURE PARTS OF THE BOILER
    DD EN ISO/TS 17845 : 2004 WELDING AND ALLIED PROCESSES - DESIGNATION SYSTEM FOR IMPERFECTIONS
    PREN 12972 : DRAFT 2017 TANKS FOR TRANSPORT OF DANGEROUS GOODS - TESTING, INSPECTION AND MARKING OF METALLIC TANKS
    UNI EN 14917 : 2012 METAL BELLOWS EXPANSION JOINTS FOR PRESSURE APPLICATIONS
    I.S. EN 287-6:2010 QUALIFICATION TEST OF WELDERS - FUSION WELDING - PART 6: CAST IRON
    UNE-EN 50052:2017 High-voltage switchgear and controlgear - Gas-filled cast aluminium alloy enclosures
    03/115441 DC : DRAFT OCT 2003 BS EN ISO 15614-6 - SPECIFICATION AND QUALIFICATION OF WELDING PROCEDURES FOR METALLIC MATERIALS - WELDING PROCEDURE TEST - ARC WELDING OF COPPER AND ITS ALLOYS
    UNI EN 287-6 : 2010 QUALIFICATION TEST OF WELDERS - FUSION WELDING - PART 6: CAST IRON
    BS EN 1090-3:2008 Execution of steel structures and aluminium structures Technical requirements for aluminium structures
    NF EN 287-6 : 2010 QUALIFICATION TEST OF WELDERS - FUSION WELDING - PART 6: CAST IRON
    UNI CEN ISO/TR 25107 : 2012 NON-DESTRUCTIVE TESTING - GUIDELINES FOR NDT TRAINING SYLLABUSES
    17/30360691 DC : 0 BS EN 12972 - TANKS FOR TRANSPORT OF DANGEROUS GOODS - TESTING, INSPECTION AND MARKING OF METALLIC TANKS
    18/30369695 DC : 0 BS EN 12953-5 - SHELL BOILERS - PART 5: INSPECTION DURING CONSTRUCTION, DOCUMENTATION AND MARKING OF PRESSURE PARTS OF THE BOILER
    17/30348949 DC : 0 BS EN 1090-3 - EXECUTION OF STEEL STRUCTURES AND ALUMINIUM STRUCTURES - PART 3: TECHNICAL REQUIREMENTS FOR ALUMINIUM STRUCTURES
    DIN EN 12493:2014-03 LPG EQUIPMENT AND ACCESSORIES - WELDED STEEL PRESSURE VESSELS FOR LPG ROAD TANKERS - DESIGN AND MANUFACTURE
    EN 13445-8 : 2014 COR 2017 UNFIRED PRESSURE VESSELS - PART 8: ADDITIONAL REQUIREMENTS FOR PRESSURE VESSELS OF ALUMINIUM AND ALUMINIUM ALLOYS
    PREN 14893 : DRAFT 2013 LPG EQUIPMENT AND ACCESSORIES - TRANSPORTABLE LIQUEFIED PETROLEUM GAS (LPG) WELDED STEEL PRESSURE DRUMS WITH A CAPACITY BETWEEN 150 LITRES AND 1000 LITRES
    UNI EN 13445-5 : 2015 UNFIRED PRESSURE VESSELS - PART 5: INSPECTION AND TESTING
    EN 287-6:2018 Qualification test of welders - Fusion welding - Part 6: Cast irons
    I.S. EN 1011-6:2006 WELDING - RECOMMENDATION FOR WELDING OF METALLIC MATERIALS - PART 6: LASER BEAM WELDING
    EN 14163:2001/AC:2006 PETROLEUM AND NATURAL GAS INDUSTRIES - PIPELINE TRANSPORTATION SYSTEMS - WELDING OF PIPELINES
    DIN EN 14532-3:2005-02 WELDING CONSUMABLES - TEST METHODS AND QUALITY REQUIREMENTS - PART 3: CONFORMITY ASSESSMENT OF WIRE ELECTRODES, WIRES AND RODS FOR WELDING OF ALUMINIUM ALLOYS
    DIN EN 14015:2005-02 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
    DIN EN 489:2009-07 District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Joint assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene; German and English version EN 489:2009
    UNE-EN 14140:2015 LPG equipment and accessories - Transportable refillable welded steel cylinders for LPG - Alternative design and construction
    BS EN 14398-2 : 2003 CRYOGENIC VESSELS - LARGE TRANSPORTABLE NON-VACUUM INSULATED VESSELS - PART 2: DESIGN, FABRICATION, INSPECTION AND TESTING
    BS EN 14163:2001 Petroleum and natural gas industries. Pipeline transportation systems. Welding of pipelines
    BS EN 12542:2010 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. Design and manufacture
    BS EN 14620-2:2006 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 Metallic components
    BS EN 13312-4:2001 Biotechnology. Performance criteria for piping and instrumentation Tubes and pipes
    ISO 15607:2003 Specification and qualification of welding procedures for metallic materials General rules
    BS EN 14879-1:2005 0rganic coating systems and linings for protection of industrial apparatus and plants against corrosion caused by aggressive media Terminology, design and preparation of substrate
    BS EN ISO 15618-2:2002 Qualification testing of welders for under-water welding Diver-welders and welding operators for hyperbaric dry welding
    BS EN 12952-5:2011 Water-tube boilers and auxiliary installations Workmanship and construction of pressure parts of the boiler
    BS EN 14140:2014 LPG equipment and accessories. Transportable refillable welded steel cylinders for LPG. Alternative design and construction
    BS EN 12953-5:2002 Shell boilers Inspection during construction, documentation and marking of pressure parts of the boiler
    EN 12953-5:2002 Shell boilers - Part 5: Inspection during construction, documentation and marking of pressure parts of the boiler
    BS EN 13458-2:2002 Cryogenic vessels. Static vacuum insulated vessels Design, fabrication, inspection and testing
    BS EN ISO 15607:2003 Specification and qualification of welding procedures for metallic materials. General rules
    ISO 15618-2:2001 Qualification testing of welders for underwater welding Part 2: Diver-welders and welding operators for hyperbaric dry welding
    BS EN 12952-6:2011 Water-tube boilers and auxiliary installations Inspection during construction; documentation and marking of pressure parts of the boiler
    BS EN 13530-2:2002 Cryogenic vessels. Large transportable vacuum insulated vessels Design, fabrication, inspection and testing
    UNE-EN 1442:2017 LPG equipment and accessories - Transportable refillable welded steel cylinders for LPG - Design and construction
    I.S. EN 12953-5:2002 SHELL BOILERS - PART 5: INSPECTION DURING CONSTRUCTION, DOCUMENTATION AND MARKING OF PRESSURE PARTS OF THE BOILER
    ISO/TS 17845:2004 Welding and allied processes Designation system for imperfections
    BS EN 1442 : 2006 LPG EQUIPMENT AND ACCESSORIES - TRANSPORTABLE REFILLABLE WELDED STEEL CYLINDERS FOR LPG - DESIGN AND CONSTRUCTION
    BS EN 14532-3:2004 Welding consumables. Test methods and quality requirements Conformity assessment of wire electrodes, wires and rods for welding of aluminium alloys
    BS EN 12732 : 2013 GAS INFRASTRUCTURE - WELDING STEEL PIPEWORK - FUNCTIONAL REQUIREMENTS
    UNE-EN 12732:2014+A1:2014 Gas infrastructure - Welding steel pipework - Functional requirements
    EN 1442:2017 LPG equipment and accessories - Transportable refillable welded steel cylinders for LPG - Design and construction
    EN ISO 15618-2:2001 Qualification testing of welders for under-water welding - Part 2: Diver-welders and welding operators for hyperbaric dry welding (ISO 15618-2:2001)
    EN 14893:2014 LPG equipment and accessories - Transportable Liquefied Petroleum Gas (LPG) welded steel pressure drums with a capacity between 150 litres and 1 000 litres
    EN 14398-2:2003+A2:2008 Cryogenic vessels - Large transportable non-vacuum insulated vessels - Part 2: Design, fabrication, inspection and testing
    EN 489:2009 District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Joint assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene
    EN 4678:2011 Aerospace series - Weldments and brazements for aerospace structures - Joints of metallic materials by laser beam welding - Quality of weldments
    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 288-9 : 1999 SPECIFICATION AND APPROVAL OF WELDING PROCEDURES FOR METALLIC MATERIALS - WELDING PROCEDURE TEST FOR PIPELINE WELDING ON LAND AND OFFSHORE SITE BUTT WELDING OF TRANSMISSION PIPELINES
    EN ISO 15607:2003 Specification and qualification of welding procedures for metallic materials - General rules (ISO 15607:2003)
    EN 14620-2:2006 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 2: Metallic components
    EN 14140:2014/AC:2015 LPG EQUIPMENT AND ACCESSORIES - TRANSPORTABLE REFILLABLE WELDED STEEL CYLINDERS FOR LPG - ALTERNATIVE DESIGN AND CONSTRUCTION
    EN ISO/TS 17845 : 2004 WELDING AND ALLIED PROCESSES - DESIGNATION SYSTEM FOR IMPERFECTIONS (ISO/TS 17845:2004)
    EN 14197-2:2003/AC:2006 CRYOGENIC VESSELS - STATIC NON-VACUUM INSULATED VESSELS - PART 2: DESIGN, FABRICATION, INSPECTION AND TESTING
    EN 14075:2002/A1:2004 STATIC WELDED STEEL CYLINDRICAL TANKS, SERIALLY PRODUCED FOR THE STORAGE OF LIQUEFIED PETROLEUM GAS (LPG) HAVING A VOLUME NOT GREATER THAN 13 M[3] AND FOR INSTALLATION UNDERGROUND - DESIGN AND MANUFACTURE
    EN ISO 9606-5:2000 Approval testing of welders - Fusion welding - Part 5: Titanium and titanium alloys, zirconium and zirconium alloys (ISO 9606-5:2000)
    EN 14879-1:2005 Organic coating systems and linings for protection of industrial apparatus and plants against corrosion caused by aggressive media - Part 1: Terminology, design and preparation of substrate
    UNE-EN 14893:2014 LPG equipment and accessories - Transportable Liquefied Petroleum Gas (LPG) welded steel pressure drums with a capacity between 150 litres and 1 000 litres
    I.S. EN 12517-1:2006 NON-DESTRUCTIVE TESTING OF WELDS - PART 1: EVALUATION OF WELDED JOINTS IN STEEL, NICKEL, TITANIUM AND THEIR ALLOYS BY RADIOGRAPHY - ACCEPTANCE LEVELS
    06/30135306 DC : 0 EN 12517-2 - NON DESTRUCTIVE TESTING OF WELD - PART 2: EVALUATION OF WELDED JOINTS IN ALUMINIUM AND ITS ALLOYS BY RADIOGRAPHY - ACCEPTANCE LEVELS
    PREN ISO 15614-6 : DRAFT 2003 SPECIFICATION AND QUALIFICATION OF WELDING PROCEDURES FOR METALLIC MATERIALS - WELDING PROCEDURE TEST - PART 6: ARC WELDING OF COPPER AND ITS ALLOYS
    I.S. EN 14075:2002 STATIC WELDED STEEL CYLINDRICAL TANKS, SERIALLY PRODUCED FOR THE STORAGE OF LIQUEFIED PETROLEUM GAS (LPG) HAVING A VOLUME NOT GREATER THAN 13 M[3] AND FOR INSTALLATION UNDERGROUND - DESIGN AND MANUFACTURE
    03/119783 DC : DRAFT DEC 2003 BS EN 13445-8 - UNFIRED PRESSURE VESSELS - PART 8: ADDITIONAL REQUIREMENTS FOR PRESSURE VESSELS OF ALUMINIUM AND ALUMINIUM ALLOYS
    PREN 13445-8 : DRAFT 2013 UNFIRED PRESSURE VESSELS - PART 8: ADDITIONAL REQUIREMENTS FOR PRESSURE VESSELS OF ALUMINIUM AND ALUMINIUM ALLOYS
    BS EN 12517-2:2008 Non-destructive testing of welds Evaluation of welded joints in aluminium and its alloys by radiography. Acceptance levels
    PREN 13445-5 : DRAFT 2011 UNFIRED PRESSURE VESSELS - PART 5: INSPECTION AND TESTING
    I.S. CEN ISO TR 25107:2006 NON-DESTRUCTIVE TESTING - GUIDELINES FOR NDT TRAINING SYLLABUSES
    I.S. EN 12517-2:2008 NON-DESTRUCTIVE TESTING OF WELDS - PART 2: EVALUATION OF WELDED JOINTS IN ALUMINIUM AND ITS ALLOYS BY RADIOGRAPHY - ACCEPTANCE LEVELS
    I.S. EN 13445-5:2014 UNFIRED PRESSURE VESSELS - PART 5: INSPECTION AND TESTING
    UNE-EN 12493:2014 LPG equipment and accessories - Welded steel pressure vessels for LPG road tankers - Design and manufacture
    I.S. CEN TS 15053:2005 NON-DESTRUCTIVE TESTING - RECOMMENDATIONS FOR DISCONTINUITIES-TYPES IN TEST SPECIMENS FOR EXAMINATION
    DIN EN 1090-3:2008-09 EXECUTION OF STEEL AND ALUMINIUM STRUCTURES - PART 3: TECHNICAL RULES FOR EXECUTION OF ALUMINIUM STRUCTURES
    UNE-EN 13445-8:2015 Unfired pressure vessels - Part 8: Additional requirements for pressure vessels of aluminium and aluminium alloys
    UNE-EN 1090-3:2011 Execution of steel structures and aluminium structures - Part 3: Technical requirements for aluminium structures
    UNI EN 13445-8 : 2015 UNFIRED PRESSURE VESSELS - PART 8: ADDITIONAL REQUIREMENTS FOR PRESSURE VESSELS OF ALUMINIUM AND ALUMINIUM ALLOYS
    UNI EN 12517-2 : 2009 NON-DESTRUCTIVE TESTING OF WELDS - PART 2: EVALUATION OF WELDED JOINTS IN ALUMINIUM AND ITS ALLOYS BY RADIOGRAPHY - ACCEPTANCE LEVELS
    UNE-EN 14917:2011 Metal bellows expansion joints for pressure applications
    EN 12493:2013+A1:2014/AC:2015 LPG EQUIPMENT AND ACCESSORIES - WELDED STEEL PRESSURE VESSELS FOR LPG ROAD TANKERS - DESIGN AND MANUFACTURE
    KTA 3201.3 : 2007(R2012) COMPONENTS OF THE REACTOR COOLANT PRESSURE BOUNDARY OF LIGHT WATER REACTORS - PART 3: MANUFACTURE
    I.S. EN 4678:2011 AEROSPACE SERIES - WELDMENTS AND BRAZEMENTS FOR AEROSPACE STRUCTURES - JOINTS OF METALLIC MATERIALS BY LASER BEAM WELDING - QUALITY OF WELDMENTS
    DIN EN 12952-5:2012-01 Water-tube boilers and auxiliary installations - Part 5: Workmanship and construction of pressure parts of the boiler
    DIN EN ISO 9606-5:2000-04 APPROVAL TESTING OF WELDERS - FUSION WELDING - PART 5: TITANIUM AND TITANIUM ALLOYS, ZIRCONIUM AND ZIRCONIUM ALLOYS
    DIN EN ISO 15618-2 E : 2002 APPROVAL TESTING OF WELDERS FOR UNDER-WATER WELDING - PART 2: DIVER-WELDERS AND WELDING OPERATORS FOR HYPERBARIC DRY WELDING
    DIN EN 14398-2:2008-11 CRYOGENIC VESSELS - LARGE TRANSPORTABLE NON-VACUUM INSULATED VESSELS - PART 2: DESIGN, FABRICATION, INSPECTION AND TESTING
    BS EN 1251-2:2000 Cryogenic vessels. Transportable vacuum insulated vessels of not more than 1000 litres volume Design, fabrication, inspection and testing
    BS EN 14893:2014 LPG equipment and accessories. Transportable Liquefied Petroleum Gas (LPG) welded steel pressure drums with a capacity between 150 litres and 1 000 litres
    BS EN 12517-1:2006 Non-destructive testing of welds Evaluation of welded joints in steel, nickel, titanium and their alloys by radiography. Acceptance levels
    BS EN 1011-4:2000 Welding. Recommendations for welding of metallic materials Arc welding of aluminium and aluminium alloys
    BS EN 288-9:1999 Specification and approval of welding procedures for metallic materials Welding procedure test for pipeline welding on land and offshore site butt welding of transmission pipelines
    EN 1251-2:2000/AC:2006 CRYOGENIC VESSELS - TRANSPORTABLE VACUUM INSULATED VESSELS OF NOT MORE THAN 1000 LITRES VOLUME - PART 2: DESIGN, FABRICATION, INSPECTION AND TESTING
    EN 12952-6:2011 Water-tube boilers and auxiliary installations - Part 6: Inspection during construction; documentation and marking of pressure parts of the boiler
    DIN EN ISO 15618-2:2002-04 APPROVAL TESTING OF WELDERS FOR UNDER-WATER WELDING - PART 2: DIVER-WELDERS AND WELDING OPERATORS FOR HYPERBARIC DRY WELDING
    EN 16603-32-01:2014 Space engineering - Fracture control
    DIN EN 14075:2003-01 STATIC WELDED STEEL CYLINDRICAL TANKS, SERIALLY PRODUCED FOR THE STORAGE OF LIQUEFIED PETROLEUM GAS (LPG) HAVING A VOLUME NOT GREATER THAN 13 M[3] AND FOR INSTALLATION UNDERGROUND - DESIGN AND MANUFACTURE
    DIN EN 14140:2017-01 LPG EQUIPMENT AND ACCESSORIES - TRANSPORTABLE REFILLABLE WELDED STEEL CYLINDERS FOR LPG - ALTERNATIVE DESIGN AND CONSTRUCTION
    CEN/TS 15053:2005 Non-destructive testing - Recommendations for discontinuities-types in test specimens for examination
    DIN EN ISO 15607:2004-03 SPECIFICATION AND QUALIFICATION OF WELDING - PROCEDURES FOR METALLIC MATERIALS - GENERAL RULES
    EN 12732:2013+A1:2014 Gas infrastructure - Welding steel pipework - Functional requirements
    UNE-EN 12732:2014 Gas infrastructure - Welding steel pipework - Functional requirements

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    ISO/TS 17845:2004 Welding and allied processes Designation system for imperfections
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