in accordance with sections 4 to 6 of CSA Standard B173.5-1979, Safety Requirements for the Use, Care and Protection of Abrasive Wheels, dated February, 1979.
conformément aux articles 4 à 6 de la norme B173.5-1979 de l’ACNOR, intitulée Safety Requirements for the Use, Care and Protection of Abrasive Wheels, publiée en février 1979.