This European Standard contains requirements for the production and testing of weld joints for the installation and modification of onshore steel pipelines and pipework used in gas infrastructure, including in-service pipelines, for all pressure ranges for the carriage of processed, non-toxic and non-corrosive natural gas according to EN ISO 13686 and for the carriage of non-conventional gases such as injected biomethane, where the pipeline elements are made of unalloyed or low-alloyed carbon steel; the pipeline is not located within commercial or industrial premises as integral part of the industrial process on those premises except for any pipelines and facilities delivering gas to such premises; the pipework is not located within household installations according to EN 1775; the design temperature of the system is between -40 °C up to and including 120 °C. The onshore steel pipelines and pipework used in gas infrastructure include in-service pipelines, for all pressure ranges for the carriage of processed, non-toxic and non-corrosive natural gas according to EN ISO 13686 and for the carriage of non-conventional gases complying with EN ISO 13686, and for which a detailed technical evaluation of the functional requirements (such as injected biomethane) is performed ensuring there are no other constituents or properties of the gases that can affect the integrity of the pipeline. This standard is not applicable to welds produced prior to the publication of this European Standard. Table 1 assigns the application areas to quality requirement categories as a function of the working pressure and pipe materials used. Additional requirements may be specified when, for example: the strain on pipelines and systems, the materials, the line routing, the design or the welding technique are considered critical. This European Standard specifies common basic principles for gas infrastructure. Users of this European Standard should be aware that there can exist more detailed national standards and/or codes of practice in the CEN member countries. This European Standard is intended to be applied in association with these national standards and/or codes of practice setting out the above-mentioned basic principles. In the event of conflicts in terms of more restrictive requirements in national legislation/regulation with the requirements of this standard, the national legislation/regulation takes precedence as illustrated in CEN/TR 13737 (all parts).
EN 12732:2013 Referenced Document
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EN ISO 14171 Welding consumables - Solid wire electrodes@ tubular cored electrodes and electrode/flux combinations for submerged arc welding of non alloy and fine grain steels - Classification*， 2016-07-01 Update
EN ISO 14174 Welding consumables - Fluxes for submerged arc welding and electroslag welding - Classification (ISO 14174:2019)*， 2019-05-15 Update
EN ISO 2560 Welding consumables - Covered electrodes for manual metal arc welding of non-alloy and fine grain steels - Classification (ISO 2560:2020)*， 2020-09-16 Update
EN ISO 3183 Petroleum and natural gas industries - Steel pipe for pipeline transportation systems (ISO 3183:2019)*， 2019-10-23 Update
EN ISO 3452 Non-destructive testing - Penetrant testing - Part 6: Penetrant testing at temperatures lower than 10 degrees C (ISO 3452-6:2008)*， 2024-04-20 Update
EN ISO 3834-1 Quality requirements for fusion welding of metallic materials - Part 1: Criteria for the selection of the appropriate level of quality requirements (ISO 3834-1:2021)*， 2021-08-31 Update
EN ISO 3834-2 Quality requirements for fusion welding of metallic materials - Part 2: Comprehensive quality requirements (ISO 3834-2:2021)*， 2021-03-31 Update
EN ISO 3834-3 Quality requirements for fusion welding of metallic materials - Part 3: Standard quality requirements (ISO 3834-3:2021)*， 2021-03-31 Update
EN ISO 3834-4 Quality requirements for fusion welding of metallic materials - Part 4: Elementary quality requirements (ISO 3834-4:2021)*， 2021-04-28 Update
EN ISO 5817 Welding - Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) - Quality levels for imperfections (ISO 5817:2023)*， 2023-03-15 Update
EN ISO 636 Welding consumables - Rods@ wires and deposits for tungsten inert gas welding of non-alloy and fine-grain steels - Classification*， 2017-06-01 Update
EN ISO 6520-1 Welding and allied processes - Classification of geometric imperfections in metallic materials - Part 1: Fusion welding (ISO 6520-1:2007)
EN ISO 6892-1 Metallic materials - Tensile testing - Part 1: Method of test at room temperature (ISO 6892-1:2019)*， 2019-12-04 Update
EN ISO 9692-1 Welding and allied processes - Types of joint preparation - Part 1: Manual metal arc welding, gas-shielded metal arc welding, gas welding, TIG welding and beam welding of steels*， 2013-09-01 Update
EN ISO 9712 Non-destructive testing - Qualification and certification of NDT personnel (ISO 9712:2021)*， 2022-03-23 Update