SANS 20047-2004 关于就发动机的气体污染物排放方面批准装有点火发动机的轻便摩托车的统一规定
Uniform provisions concerning the approval of mopeds equipped with a positive-ignition engine with regard to the emission of gaseous pollutants by the engine
Applies to the emission of gaseous pollutants made by two-wheeled or three-wheeled vehicles having a maximum design speed not exceeding 50 km/h and a cylinder capacity not exceeding 50 cm3.