Fibre optic sensors. Generic specification|Velocity measurement, Detail specification, Electrical components, Designations, Classification systems, Electrical testing, Electrical measurement, Radiation measurement, Physical properties of materials, Testing conditions, Chemical analysis and testing, Assessed quality, Marking, Quality assurance systems, Force measurement, Position, Meteorological measurement, Optical measurement, Electronic equipment and components, Optical fibres, Probes, Mechanical testing, Fibre optics, Acoustic measurement, Visual inspection (testing), Environmental testing, Magnetic field measurement, Optical communication systems