This international standard is applicable to instruments measuring radiant power emitted from
sources which are typical for the fibre-optic communications industry. These sources include
laser diodes, light emitting diodes (LEDs) and fibre-type sources. The radiation may be
divergent or collimated. The standard describes the calibration of power meters to be
performed by calibration laboratories or by power meter manufacturers.
BS EN 61315:2006 Referenced Document
IEC 60359 Electrical and electronic measurement equipment - Expression of performance