For the purpose of the Flour and Bread Act, the director is authorized to take samples for analysis and to conduct examination and investigations and to enter, at reasonable times, any factory, mill, bakery, warehouse, shop or establishment where flour, white bread or rolls are manufactured, processed, packed, sold or held or any vehicle being used for the transportation thereof and to inspect any such place or

vehicle and any flour, white bread or rolls therein and all pertinent equipment, materials, containers and labeling.