EN 1090-1 is a European standard dealing with design and manufacture of load bearing components and structures made of steel or aluminium.
Structural steelwork can only be CE marked by organisations which have a current certification to EN 1090-1.
For more information about certification of structural steelwork see SCCS.
The definitions of some the terms which are used in EN 1090-1 can be found in ISO 9000.
