UNE-EN 60793-2-70:2017 Optical fibres - Part 2-70: Product specifications - Sectional specification for polarization-maintaining fibres (Endorsed by Asociación Española de Normalización in June of 2017.)
2017UNE-EN 60793-2-70:2017 Optical fibres - Part 2-70: Product specifications - Sectional specification for polarization-maintaining fibres (Endorsed by Asociación Española de Normalización in June of 2017.)