Historical
ISO 8560:1986
Technical drawings -- Construction drawings -- Representation of modular sizes, lines and grids
In the rules laid down the basic module M is 100 mm (see ISO 1006).Planning and design work is made easier by modular sizes. Multimodular grids may be added, to a limited extent, in construction drawings for manufacturing and construction, for orientation and location.
International Organization for Standardization [iso]