2014LST EN 61978-1-2014 Fibre optic interconnecting devices and passive components - Fibre optic passive chromatic dispersion compensators - Part 1: Generic specification (IEC 61978-1:2014)
2000LST EN 1351-2000 Determination of flexural strength of autoclaved aerated concrete
LST EN 1351-2000 Determination of flexural strength of autoclaved aerated concrete was changed to LST EN 61978-1-2014 Fibre optic interconnecting devices and passive components - Fibre optic passive chromatic dispersion compensators - Part 1: Generic specification (IEC 61978-1:2014).