ISO 10303-515:2019
specifies the integrated resource constructs for
Constructive solid geometry.

This document specifies the use of ISO 10303 integrated resources satisfying the
requirements for the representation as a consistent set of geometric entities for the
definition of constructive solid geometry models build up from solid primitives,
and the boolean operations of union, intersection, and difference on these solids and other extruded, swept and manifold
solids.