This Malaysian Standard specifies performance requirements for high-pressure sodium vapour lamps for general lighting purposes. It includes: - restriction to performance requirements - introduction of a test device for ignition; - split of the lamp data sheets which make use of the test device and those which do not; - provisions for measurement during starting, measurement of electrical and photometrical characteristics and tests for lumen maintenance and life; - general review e.g. of maximum lamp outlines and alignment of data; - new order of data sheets by wattage.
