113. A residual hazardous materials or biomedical waste incinerator with a design feed rate equal to or greater than 1 ton per hour must have an emergency device that stops the supply of the materials or waste if the concentration of carbon monoxide exceeds the limits prescribed by section 103.
A residual hazardous materials incinerator for which a destruction and removal efficiency equal to or greater than 99.9999% is required must have an emergency device that stops the supply of the materials if the concentration of carbon monoxide in the combustion gases, on a dry basis corrected to 11% oxygen, exceeds 57 mg/Rm3 for 1 minute.