S-2.1, r. 13 - Regulation respecting occupational health and safety

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198. Mounting a flat grinding wheel: A flat grinding wheel that is non-permanently mounted on its spindle shall be mounted between 2 plates whose diameter is at least 1/3 the nominal diameter of the grinding wheel by inserting a buffer of blotter paper between the wheel and the plates.
O.C. 885-2001, s. 198.