This British Standard specifies performance requirements for luminance meters for the measurement of photopic luminance for applications other than the measurement of luminaires. It specifies the performance requirements for two types of luminance meter, Type L (laboratory instruments) and Type F (field instruments). This standard is intended for use by meter manufacturers and users.
NOTE The requirements specified for a Type L meter in this standard are identical to the requirements specified for a luminance meter in BS EN 13032-1. However, BS EN 13032-1 specifies additional requirements which are not specified in this standard.
BS 7920:2005 history
0000 BS 7920:2005(2011)
2005BS EN 13032-1:2005 Light and lighting - Measurement and presentation of photometric data of lamps and luminaires - Measurement and file format