scope:

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, 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. 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.