This International Standard gives guidelines and specifies a standard test method for the assessment of thermal comfort in vehicles using human subjects. It is not restricted to any particular vehicle but provides the general principles that allow assessment and evaluation.The standard applies to all vehicles including cars, buses, trucks, off-road vehicles, trains, aircraft, ships, submarines, crane cabins and similar spaces. It applies where people are enclosed inside of a vehicle and to those exposed to outside conditions. For those exposed to outside conditions, such as bicycles, motorcycles, sports cars and fork lift trucks without cabins, vehicle spee