Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 3: Copper alloy flanges; German version EN 1092-3:2003 + AC:2004
Edition 2004-10

Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 4: Aluminium alloy flanges; German version EN 1092-4:2002
Edition 2002-08

Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 4: Valves; German and English version prEN 1555-4:2024
Edition 2024-07

Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 4: Valves; German version EN 1555-4:2021
Edition 2021-12

Plastics piping systems - Valves for polyethylene (PE) piping systems - Test method for leaktightness under and after bending applied to the operating mechanisms; German and English version prEN 1680:2023
Edition 2023-11

Plastics piping systems - Valves for polyethylene (PE) piping systems - Test method for leaktightness under and after bending applied to the operating mechanism; German version EN 1680:1997
Edition 1997-03

Plastics piping systems - Thermoplastics valves - Test method for the integrity of a valve after temperature cycling under bending; German version EN 1704:1997
Edition 1997-03

Plastics piping systems - Thermoplastics valves - Test method for the integrity of a valve after an external blow; German and English version prEN 1705:2024
Edition 2024-03

Plastics piping systems - Thermoplastics valves - Test method for the integrity of a valve after an external blow; German version EN 1705:1996
Edition 1997-01

Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, Class designated - Part 1: Steel flanges, NPS 1/2 to 24; German version EN 1759-1:2004
Edition 2005-02