(a) containing dust, dirt, flies, insects or any other foreign substance or which are otherwise unclean; or

(b) containing water sprayed or dripped from a can washer; or

(c) which has been handled in other than a sanitary manner; or

(d) which has been handled in equipment not designed, installed or operated in conformity with the provisions of the New York State or the New York City Sanitary Code shall be sold, offered or exposed for sale or used either as human food or in the manufacture of any article or product which may be used for human food. Milk drippings, milk rinsings, mixtures, whey or combinations thereof, which before being strained, filtered or clarified contain in excess of three milligrams of extraneous matter in one pint drawn by the use of a suction type sediment tester from the bottom of an unstirred 40-quart can filled with such milk drippings, milk rinsing, mixtures, whey or combinations thereof, shall be deemed to be unclean.