BS EN IEC 61280-4-1:2019 Fibre-optic communication subsystem test procedures Installed cabling plant. Multimode attenuation measurement

Performance testing
Fibre optics
Fibre optic connectors
Optical communication systems
Telecommunication
Optoelectronic devices
Fibre optic cables
Attenuation
Optical fibres

Link: BS EN IEC 61280-4-1:2019 Fibre-optic communication subsystem test procedures Installed cabling plant. Multimode attenuation measurement
Source: BSI Standards