The document specifies a test method to determine the deviation of the roundness and the concentricity of optical fibres.
DIN 58141-9:1995 history
2013DIN 58141-9:2013-07 Measurement of fiber optic elements - Part 9: Determination of deviation of the roundness and the concentricity of optical fibres; Text in German and English
2013DIN 58141-9:2013 Measurement of fiber optic elements - Part 9: Determination of deviation of the roundness and the concentricity of optical fibres; Text in German and English
1995DIN 58141-9:1995 Testing of fibre optic elements - Part 9: Determination of deviation of the roundness and the concentricity of optical fibres