Incinerators with a maximum burning capacity of two hundred (200) pounds per hour or more shall not emit particulate matter in excess of 0.2 grains per dry cubic foot corrected to twelve percent (12%) carbon dioxide of exhaust gas under standard conditions. Incinerators with a maximum burning capacity of less than two hundred (200) pounds per hour shall not emit particulate matter in excess of 0.3 grains per dry cubic foot corrected to twelve percent (12%) carbon dioxide of exhaust gas under standard conditions. (Ord. 316 §19(e), 1970)