(c) operated in accordance with sections 4 to 6 of CSA Standard B173.5–1979, Safety Requirements for the Use, Care and Protection of Abrasive Wheels.
c) elle est utilisée conformément aux articles 4 à 6 de la norme B173.5-1979 de la CSA, intitulée Safety Requirements for the Use, Care and Protection of Abrasive Wheels.