STB PDF

Ultrasonics Hand-held probe Doppler foetal heartbeat detectors Performance requirements and methods of measurement and reporting. Original standard BS EN 61266-1995 (2000) in PDF full version. Additional info + preview on request

Document status: Active

Fibre optic communication subsystem test procedures - General communication subsystems. Central wavelength and spectral width measurement. Original standard BS EN 61280-1-3-2010 in PDF full version. Additional info + preview on request

Document status: Withdrawn

Fibre optic communication subsystem test procedures - General communication subsystems. Light source encircled flux measurement method. Original standard BS EN 61280-1-4-2010 in PDF full version. Additional info + preview on request

Document status: Replaced by STB BS EN IEC 61280-1-4-2023

Fibre optic communication subsystem test procedures - Installed cable plant. Multimode attenuation measurement. Original standard BS EN 61280-4-1-2009 in PDF full version. Additional info + preview on request

Document status: Replaced by STB BS EN IEC 61280-4-1-2019 + A1-2022

Fibre-optic communication subsystem test procedures - Installed cable plant. Single-mode attenuation and optical return loss measurement. Original standard BS EN 61280-4-2-2014 in PDF full version. Additional info + preview on request

Document status: Replaced by STB BS EN IEC 61280-4-2-2024

Optical amplifiers. Test methods - Power and gain parameters. Optical spectrum analyzer method. Original standard BS EN 61290-1-1-2015 in PDF full version. Additional info + preview on request

Document status: Replaced by STB BS EN IEC 61290-1-1-2020