Abstract / scope
Specifies requirements for protractors of the circular and semicircular types for drawing-office use, made from transparent plastics material. Does not apply to protractors made from other materials.
Instruments de dessin avec ou sans graduation — Partie 2: Rapporteurs
Specifies requirements for protractors of the circular and semicircular types for drawing-office use, made from transparent plastics material. Does not apply to protractors made from other materials.