is the European standard that specifies requirements for the execution of concrete structures. It applies to:
: It does not cover the production of concrete (governed by BS EN 206), the factory manufacture of precast elements, or health and safety regulations. Key Technical Sections bs en 13670
The story ends with . No building is perfectly straight, but BS EN 13670 sets the limit on how much a column can lean or a floor can dip before it’s considered a failure. It works in tandem with local guides, like the National Structural Concrete Specification (NSCS) in the UK, to ensure that what was designed on a computer screen is exactly what stands in the city skyline. BS EN 13670:2009 Execution of concrete structures - NBS is the European standard that specifies requirements for