All incinerators shall be equipped with gas cleaning devices as necessary to meet the following emission standards:
(A) Particulate matter. Incinerators shall not emit more than 0.2 grain of particulate matter per standard cubic foot of exhaust gas adjusted to 50% excess air.
(B) Smoke. No incinerator shall emit or produce smoke, the appearance, density or shade of which is No. 2 or darker on the Ringelmann Chart, except that during an operational breakdown or while cleaning air pollution control equipment smoke may be emitted of an appearance or density of No. 2 or darker on the Ringelmann Chart for a period or periods aggregating not more than three minutes in any observed 60 minute period.
('81 Code, § 16-1.15) (Ord. 1971-7-18-815, passed 5-17-71) Penalty, see § 10.99