1.1 This specification covers commercial combination, atmospheric pressure steaming, which includes low-temperature and bio-steaming, baking, roasting, and rethermalizing forced-air electric and gas-fired ovens.1.2 The values stated in inch-poun This specification covers the material, design, and performance requirements pertinent to the manufacture of commercial forced-air gas-fired (Style 1) and electric (Style 2) combination ovens capable of baking, roasting, rethermalizing, and atmospheric