DIN EN 60793-1-21:2002 Optical fibres - Part 1-21: Measurement methods and test procedures; Coating geometry (IEC 60793-1-21:2001); German version EN 60793-1-21:2002
2002DIN EN 60793-1-21:2002 Optical fibres - Part 1-21: Measurement methods and test procedures; Coating geometry (IEC 60793-1-21:2001); German version EN 60793-1-21:2002