Повучен
The temperature is fixed at 20 degrees centigrade, i.e. a metre gauge with the indication: reference temperature 20 degrees centigrade has at 20 degrees centigrade the same length as the international prototype at 0 degree centigrade.
ПОВУЧЕН
ISO 1:1975
95.99
Повучен
25. 7. 2002.
ПОВУЧЕН
ISO 1:2002