531.421 Powers and duties of local officials.—Any weights and measures official appointed for a county or city may exercise, in cooperation with the state, the duties enumerated in s. 531.41(9)-(13) and the powers enumerated in s. 531.42. These powers and duties shall extend to their respective jurisdictions, except that the jurisdiction of a county official shall not extend to any city for which a weights and measures official has been appointed.