Flanges and their joints - Design rules for gasketed circular flange connections - Part 1: Calculation; German version EN 1591-1:2013
Edition 2014-04

Welded steel tubes for pressure purposes - Technical delivery conditions - Part 3: Electric welded and submerged arc welded alloy fine grain steel tubes with specified room, elevated and low temperature properties; German version EN 10217-3:2019
Edition 2019-08

Water quality - Determination of dissolved oxygen - Optical sensor method (ISO 17289:2014)
Edition 2014-12

Weldable structural steels for fixed offshore structures - Technical delivery conditions - Part 4: Cold formed welded hollow sections; German version EN 10225-4:2019
Edition 2019-11

Weldable structural steels for fixed offshore structures - Technical delivery conditions - Part 3: Hot finished hollow sections; German version EN 10225-3:2019+A1:2023
Edition 2023-07

Non-destructive testing of steel tubes - Part 1: Automated electromagnetic testing of seamless and welded (except submerged arc-welded) steel tubes for the verification of hydraulic leaktightness (ISO 10893-1:2011 + Amd 1:2020); German version EN ISO 10893-1:2011 + A1:2020
Edition 2020-10

Non-destructive testing of steel tubes - Part 11: Automated ultrasonic testing of the weld seam of welded steel tubes for the detection of longitudinal and/or transverse imperfections (ISO 10893-11:2011 + Amd 1:2020); German version EN ISO 10893-11:2011 + A1:2020
Edition 2020-10

Non-destructive testing of steel tubes - Part 10: Automated full peripheral ultrasonic testing of seamless and welded (except submerged arc-welded) steel tubes for the detection of longitudinal and/or transverse imperfections (ISO 10893-10:2011 + Amd 1:2020); German version EN ISO 10893-10:2011 + A1:2020
Edition 2020-10

Non-destructive testing of steel tubes - Part 2: Automated eddy current testing of seamless and welded (except submerged arc-welded) steel tubes for the detection of imperfections (ISO 10893-2:2011 + Amd 1:2020); German version EN ISO 10893-2:2011 + A1:2020
Edition 2020-10

Petroleum and natural gas industries - Induction bends, fittings and flanges for pipeline transportation systems - Part 4: Factory cold bends (ISO 15590-4:2019, modified); English version EN 14870-4:2023
Edition 2023-10