Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 3: Fittings; German version EN 1555-3:2021
Edition 2021-12

Plastics piping systems for soil and waste discharge (low and high temperature) within the building structure - Chlorinated poly(vinyl chloride) (PVC-C) - Part 1: Specifications for pipes, fittings and the system; German version EN 1566-1:2022
Edition 2023-11

Aluminium and aluminium alloys - HF seam welded tubes - Part 3: Tolerances on dimensions and form for circular tubes; German version EN 1592-3:1997
Edition 1997-12

Aluminium and aluminium alloys - HF seam welded tubes - Part 4: Tolerances on dimensions and form for square, rectangular and shaped tubes; German version EN 1592-4:1997
Edition 1997-12

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

Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, Class designated - Part 3: Copper alloy flanges; German and English version prEN 1759-3:2021
Edition 2022-02

Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, Class designated - Part 3: Copper alloy flanges; German version EN 1759-3:2003 + AC:2004
Edition 2004-10

Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, Class designated - Part 4: Aluminium alloy flanges; German and English version prEN 1759-4:2021
Edition 2022-01

Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, Class designated - Part 4: Aluminium alloy flanges; German version EN 1759-4:2003
Edition 2003-12

Zinc and zinc alloys - Alloys for foundry purposes - Ingot and liquid; German version EN 1774:1997
Edition 1997-11