Flanges and their joints – Circular flanges for pipes, valves, fittings and accessories, PN designated – Part 1: Steel flanges;

Cylindrical gears — ISO system of flank tolerance classification — Part 1: Definitions and allowable values of deviations relevant to flanks of gear teeth

Geometrical product specifications (GPS) — Geometrical tolerancing — Tolerances of form , orientation , location and run-out

Thermal cutting — Classification of thermal cuts — Geometrical product specification and quality tolerances

Geometrical product specifications (GPS) — Dimensional tolerancing — Part 1: Linear sizes