NF EN ISO 4157-3

Construction drawings. Designation systems. Part 3 : room identifiers.

This part of ISO 4157 establishes requirements for designation systems for rooms, areas, spaces, and voids in

buildings by room identifiers. It introduces a new designation concept intended for identification of rooms in a project

throughout its life cycle, i.e. the conception, programming, planning, erection, maintenance, remodelling and

demolition phases.

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