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

Chimneys - Requirements for metal chimneys - Part 1: System chimney products; German and English version prEN 1856-1:2021

Chimneys - Requirements for metal chimneys - Part 2: Metal flue liners and connecting flue pipes; German and English version prEN 1856-2:2021

Prefabricated accessories for roofing - Part 1: Individual plastic rooflights - Product specification and test methods; German version FprEN 1873-1:2021

Aerospace series - Steel 15CrMoV6 (1.7334) - Air melted - Hardened and tempered - Bars - Dₑ ≤ 16 mm - 980 MPa ≤ Rₘ ≤ 1 180 MPa; German and English version prEN 2213:2021

Aerospace series - Steel 15CrMoV6 (1.7334) - Forgings - Bars - Dₑ ≤ 100 mm - 1 080 MPa ≤ Rₘ ≤ 1 250 MPa; German and English version prEN 2252:2021

Aerospace series - Steel X6CrNiTi18-10 (1.4541) - Air melted - Softened - Plates - 6 mm < a ≤ 50 mm - 500 MPa ≤ Rₘ ≤ 700 MPa; German version ASD-STAN prEN 3480:2021

Aerospace series - Steel 15CrMoV6 (1.7334) - Air melted - Hardened and tempered - Bar for machining - Dₑ ≤ 100 mm - 1 080 MPa ≤ Rₘ ≤ 1 280 MPa; German and English version prEN 3523:2021

Aerospace series - Inserts, MJ screw threads, helical coil, self-locking, tanged insertion drive, in heat resisting nickel base alloy NI-PH2801 (Inconel X750); English version prEN 3542:2021

Aerospace series - Connectors, electrical, rectangular, modular - Operating temperature 175 °C continuous - Part 009: Rack and panel plug for 2 and 4 modules, series 3 - Product standard; English version prEN 4165-009:2021