NF C93-850-2-21*NF EN 60794-2-21:2012 Optical fibres cables - Part 2-21 : indoor optical fibre cables - Detailed specification for multi-fibre optical distribution cables for use in premises cabling
2012NF C93-850-2-21*NF EN 60794-2-21:2012 Optical fibres cables - Part 2-21 : indoor optical fibre cables - Detailed specification for multi-fibre optical distribution cables for use in premises cabling