This standard specifies several methods for measuring the diameter of an optical fibre or cable, the non-circularity and the concentricity of the fibre core/cladding on an optical fibre.
EN 3745-202:2005 history
2018EN 3745-202:2018 Aerospace series - Fibres and cables@ optical@ aircraft use - Test methods - Part 202: Fibre dimensions
2005EN 3745-202:2005 Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 202: Fibre dimensions