DIN 58141-9 E:2012 Draft Document - 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 58141-9:2013-07 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