2014LST EN 12326-1-2014 Slate and stone for discontinuous roofing and external cladding - Part 1: Specifications for slate and carbonate slate
2001LST EN 50186-2-2001 Live-line washing systems for power installations with nominal voltages above 1 kV. Part 2: National annexes
LST EN 50186-2-2001 Live-line washing systems for power installations with nominal voltages above 1 kV. Part 2: National annexes was changed to LST EN 12326-1-2014 Slate and stone for discontinuous roofing and external cladding - Part 1: Specifications for slate and carbonate slate.