The secretary, for the purpose of inspection, may enter any place where garlic or onions for dehydration purposes may be found and take for inspection such representative samples as may be necessary to determine whether or not any uncertified lot or load of garlic or onions complies with the quality standards established pursuant to this chapter, and the percentage of garlic or onions that are not suitable for dehydration purposes. The secretary may subject samples of garlic or onions to any method of inspection or testing prescribed by regulation.