District heating pipes - Bonded single pipe systems for directly buried hot water networks - Factory made fitting assemblies of steel service pipes, polyurethane thermal insulation and a casing of polyethylene; German and English version prEN 448:2023
Edition 2023-08

District heating pipes - Bonded single pipe systems for directly buried hot water networks - Factory made fitting assemblies of steel service pipes, polyurethane thermal insulation and a casing of polyethylene; German version EN 448:2019
Edition 2020-03

Specification for dedicated liquefied petroleum gas appliances - Domestic flueless space heaters (including diffusive catalytic combustion heaters); German version EN 449:2002+A1:2007
Edition 2008-03

Fly ash for concrete - Part 1: Definition, specifications and conformity criteria; German version EN 450-1:2012
Edition 2012-10

Fly ash for concrete - Part 2: Conformity evaluation; German version EN 450-2:2005
Edition 2005-05

Method of testing fly ash - Part 1: Determination of free calcium oxide content; German version EN 451-1:2017
Edition 2017-08

Method of testing fly ash - Part 2: Determination of fineness by wet sieving; German version EN 451-2:2017
Edition 2017-08

Swap bodies - Swap bodies of class A - Dimensions and general requirements; German version EN 452:1995
Edition 1995-06

Food processing machinery - Dough mixers - Safety and hygiene requirements; German version EN 453:2014
Edition 2015-04

Food processing machinery - Planetary mixers - Safety and hygiene requirements; German version EN 454:2014
Edition 2015-02