Method of measurement of centre beam intensity and beam angle(s) of reflector lamps has-hardcopy The main changes are minor

The main changes are minor technical revisions

BS ISO 17090-3 deals with management issues involved in implementing and using digital certificates in healthcare

at a power level of up to 30 kW

BS EN 622-1 helps you produce fibreboards that fulfil the basic quality parameters

Post market surveillance

Method of measurement of centre beam intensity and beam angle(s) of reflector lamps has-hardcopy The main changes are minor1 Scope This Technical Report describes the method of measuring and specifying the centre beam intensity and the associated beam angle(s) of reflector lamps. It applies to incandescent, tungsten halogen and gas discharge and LED based reflector lamps for general lighting purposes. It does not apply to lamps for special purposes such as projection lamps. These recommendations relate to design testing of lamps only.