Aerospace series - Pipe coupling 8°30′ in titanium alloy - Elbows 90°, bulkhead, welded end; German version EN 4022:2001
Edition 2002-08

Aerospace series - Pipe coupling 8°30′ in titanium alloy - Unions, bulkhead, welded end; German version EN 3247:2001
Edition 2002-08

Aerospace series - Pipe coupling 8°30′ in titanium alloy - Elbows 45°, welded ends; German version EN 4184:2001
Edition 2002-08

Aerospace series - Pipe coupling 8°30′ in titanium alloy - Elbows 90°, welded ends; German version EN 4183:2001
Edition 2002-08

Aerospace series - Pipe coupling, welded, in heat resisting steel - Elbow 90° - Inch series; German and English version EN 4561:2003
Edition 2004-08

Aerospace series - Pipe coupling, welded, in heat resisting steel - Reductors - Inch series; German and English version EN 4562:2003
Edition 2004-08

Aerospace series - Pipe coupling, welded, in heat resisting steel - Tees - Inch series; German and English version EN 4563:2003
Edition 2004-08

Petroleum, petrochemical and natural gas industries - Test methods for quality control of microstructure of ferritic/austenitic (duplex) stainless steels (ISO 17781:2017); English version EN ISO 17781:2017
Edition 2017-11

Oil and gas industries including lower carbon energy - Piping systems on offshore platforms and onshore plants - Part 2: Materials (ISO 13703-2:2023); English version EN ISO 13703-2:2023
Edition 2024-02

Steel gate, globe and check valves for sizes DN 100 and smaller, for the petroleum and natural gas industries (ISO 15761:2020); English version EN ISO 15761:2020
Edition 2021-04