CSA C22.2 No. 60335-2-42
Household and similar electrical appliances - Safety - Part 2-42: Particular requirements for commercial electric forced convection ovens, steam cookers and steam-convection ovens (Adopted IEC 60335-2-42:2002, edition 5:2002 consolidated with amendment 1:2008 and amendment 2:2017, with Canadian deviations)