### Q-2, r. 4.1 - Clean Air Regulation

94. The use in an industrial furnace of fuel referred to in subparagraph 3 of the second paragraph of section 92 is also subject to the following emission limits and other standards:
(1)  an emission limit for hydrogen chloride of 50 mg/Rm3, expressed on a dry basis corrected to 11% oxygen according to the formula in the second paragraph of section 79;
(2)  the fuels for which section 92 prescribes a destruction and removal efficiency equal to or greater than 99.9999% must not be introduced into the furnace before the combustion chamber and accessory equipment have reached and maintained normal operating temperature for a minimum period of 60 consecutive minutes;
(3)  the combustion chamber and accessory equipment must be maintained at normal operating temperature for a minimum period of 30 consecutive minutes after the last fuel for which section 92 prescribes a destruction and removal efficiency equal to or greater than 99.9999% have been introduced into the furnace, or for a minimum period of 10 consecutive minutes after the introduction of that fuel if it is in a liquid state; and
(4)  the furnace, except a clinker kiln or lime kiln, must have an emergency device that stops the supply of fuel if the carbon monoxide concentration in the combustion gases exceeds the limit of 57 mg/Rm3 on a dry basis corrected to 11% oxygen for 1 minute.
O.C. 501-2011, s. 94.