For the purposes hereinbefore set forth, the Board shall cause to be made by inspectors appointed for that purpose an examination and inspection of all meat food products prepared in any slaughtering, meat-canning, salting, packing, rendering, or similar establishment, where such articles are prepared for intrastate commerce and for the purposes of any examination and inspection said inspectors shall have access at all times, by day or night, whether the establishment be operated or not, to every part of said establishment; and said inspectors shall mark, stamp, tag, or label as “Oklahoma Inspected and Passed” all such products found to be not adulterated; and said inspectors shall label, mark, stamp, or tag as “Oklahoma Inspected and Condemned” all such products found adulterated, and all such condemned meat food products shall be destroyed for food purposes, as hereinbefore provided, and the Board may remove inspectors from any establishment which fails to so destroy such condemned meat food products.