https://www.bsigroup.com/en-GB/products-and-services/standards/bs-en-1090-steel-structures-and-aluminum-structures/
BS EN 1090 - Steel Structures and Aluminum Structures | BSI
Build safely and compliantly with steel and aluminium components. BS EN 1090 specifies requirements for conformity assessment of performance characteristics...
bs en 1090steel structuresaluminumbsi