ISO 21542

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ISO 21542:2011 specifies a range of requirements and recommendations for many of the elements of construction, assemblies, components and fittings which comprise the built environment.

ISO 21542 is an international standard that provides guidelines for the design and construction of buildings to make them more accessible and usable. It covers aspects like how people can enter, move around, and exit a building, as well as how to evacuate in an emergency.