Radiation Emitting Devices Regulations — 2
2 (1) Every microwave oven shall be designed and constructed in such a manner that, under the conditions of use specified by the manufacturer, it functions in accordance with section 4 with its original components or replacement components recommended by the manufacturer for at least (a) 200 000 use cycles or openings and closings of the oven door, in the case of a commercial microwave oven; and (b) 100 000 use cycles or openings and closings of the oven door, in the case of any other microwave oven. (2) Every microwave oven shall be designed and constructed to include the following safety features: (a) for each microwave power source, a device or indicator that provides a visible indication of the status of operation of the oven; (b) a device to monitor one or more of the interlocks required by paragraph (g) that renders the oven inoperable when a monitored interlock fails or is otherwise rendered inoperable; (c) where the power can be varied by a user control, an indicator to show the level of microwave power applied to the cavity; (d) where a total microwave power generating capacity of 25 kilowatts or more is used, a lock on the control panel requiring the insertion of a key before microwave power can be generated; (e) where access to the cavity is not by a conveyor, a door constructed and positioned so as to ensure that any leakage radiation does not exceed the limits prescribed by section 4; (f) a covering or baffle arrangement over any viewing screen, vent or access port in the cavity wall, other than any opening through which conveyor borne material enters or leaves the cavity, that prevents the insertion of any object into the cavity while the microwave power source is in operation; (g) where the oven is equipped with a door as specified in paragraph (e), at least two electrically and mechanically independent interlocks positioned so as to ensure that (i) the door cannot be opened until the microwave power generating component has been turned off, and (ii) the microwave power generating component cannot be turned on while the door is open; and (h) components and shields constructed and positioned so that adjustments to the service controls and user controls to yield maximum possible output do not produce leakage radiation in excess of the limits prescribed by section 4. (3) Every microwave oven shall have permanently affixed to and clearly visible on its external surface the following information and warning sign: (a) the name of the manufacturer and the model number, serial number and place of manufacture of the oven; (b) the type of microwave power generating component and the normal operating voltage, operating frequency and normal maximum output power thereof; (c) a description of the test load prescribed by paragraph 4(3)(a); (d) the year and month of manufacture of the oven; (e) the sign described in section 3; and (f) where the oven is not a commercial microwave oven, the words “NOT FOR COMMERCIAL USE — NON DESTINÉ À UN USAGE COMMERCIAL ”. (4) Where a microwave oven is equipped with a conveyorized system, a warning sign described in section 3 shall be permanently affixed to its external surface adjacent to each entry and exit port. (5) Where the generation of X-rays within a microwave in excess of 2.5 milliroentgens per hour averaged over 10 square centimetres is possible while the oven is functioning in accordance with subsection 4(1), an X-radiation warning sign that is clearly visible while the microwave oven is being serviced shall be permanently affixed to the microwave power generating component.