Light and lighting - Measurement and presentation of photometric data of lamps and luminaires - Part 1: Measurement and file format

This standard establishes general principles for the measurement of basic photometric data for lighting application purposes. It establishes the measurement criteria needed for the standardisation of basic photometric data and details of the CEN file format for electronic data transfer. In addition to it being a valuable standard in its own right, this standard has been written in two parts to provide the basis of photometric measurement in part 1 and verification and presentation techniques for specific lighting applications in part 2.