BS EN 4641-301. Aerospace series. Cables, optical 125m diameter cladding Part 301. Tight structure 50-125m GI fibre nominal 1.8 mm Outside Diameter. Product Standard|Tear tests, Elastic constants, Elongation, Tensile strength, Density, Hardness testing, Approval testing, Qualification approval, Quality assurance, Quality assurance systems, Synthetic rubber, Natural rubber, Air transport engineering, Testing conditions, Aircraft components, Dimensions, Marking, Coatings, Electric cables, Fibre optics, Performance, Designations, Fibre optic cables, Optical fibres, Mixing, Temperature, Circuit-breakers, Nickel alloys, Non-ferrous alloys, Alloys, Shape, Diameter, Sleeving (electrical), Durability, Environmental testing, Testing, Testing methods, Electrodes, Melting, Air, Steels, Contrast (optical), Measurement, Cables (electric), Test methods, Aerospace transport, Corrosion tests, Compression set