§ 6823. Factory inspection. For purposes of enforcement of this article, officers duly designated by the secretary are authorized:

(1) to enter, at reasonable times, any factory, warehouse or establishment in which drugs, devices or cosmetics are manufactured, processed, packed, or held, for introduction into commerce or are held after such introduction, or to enter any vehicle being used to transport or hold such drugs, devices or cosmetics in commerce; and

(2) to inspect, at reasonable times, such factory, warehouse, establishment or vehicle and all pertinent equipment, finished and unfinished materials, containers, and labeling therein.