This standard specifies the terms and definitions, classifications and models, basic requirements, technical requirements, test methods, inspection rules, signs, warnings and instructions for use, packaging, transportation and storage, and quality commitments of commercial gas steamers (hereinafter referred to as steamers). . This standard applies to steamers for steaming dishes with a rated heat load not exceeding 80 kW and a steam pressure in the steam chamber not exceeding 500 Pa. This standard applies to steamers that use gas that meets the requirements of GB/T 13611 as the energy source, the combustion air is taken from indoors, and the combustion products are discharged directly or indirectly to the outdoors. This standard does not apply to condensing steam generating steamers.