Specifications for gasoline, kerosene, tractor fuel, diesel oil, heating oil, lubricating oil, alternative fuels, and liquefied petroleum gases, including propane, propylene, normal butane or isobutane, and butylene, must be determined by the department and must be based upon nationally recognized standards. When so determined by the department and adopted and promulgated as regulations and orders of the department in accordance with chapter 28-32, such specifications must be the specifications for such petroleum products sold in this state and official tests of such petroleum products must be based upon test specifications so determined adopted and promulgated.