BS EN 60793-1-54. Optical fibres. Part 1-54. Measurement methods & test procedures. Gamma irradiation Optical fibres, Fibre optics, Optical communication systems, Fibre optic cables, Electronic equipment & components, Optical measurement, Temperature measurement, Environmental testing, Gamma-radiation, Electromagnetic radiation, Attenuation, Wave properties & phenomena, Radiolysis, Electrons, Defects, Safety devices, Laboratory testing