Historical
ISO 5458:1998
Geometrical Product Specifications (GPS) -- Geometrical tolerancing -- Positional tolerancing
This International Standard describes positional tolerancing. This tolerancing method is applied to the location of a point, of a line nominally straight and of a surface nominally plane, e.g. the centre of a sphere, the axis of a hole or shaft and the median surface of a slot.
International Organization for Standardization [iso]