The department shall, from time to time, weigh or measure and inspect packages or amounts of commodities kept, offered or exposed for sale, sold or in the process of delivery to determine whether the same contain the amounts represented and whether they are kept, offered or exposed for sale or sold in accordance with law, and, when such packages or amounts of commodities are found not to contain the amounts represented or are found to be kept, offered or exposed for sale in violation of law, the department may order them off sale and may so mark or tag them as to show them to be illegal. In carrying out the provisions of this section, the department shall use the National Institute of Standards and Technology Handbook 133, latest edition, containing any amendments or supplements thereto, or which may be superseded by a new handbook, except insofar as specifically modified, amended or rejected by a regulation issued by the department. No person shall:
3 Pa.C.S. § 4117