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.
Document published on: 1975-04 Edition: 1 (Monolingual) ICS: 17.040.10 Status: Withdrawn Stage: 95.99 (2002-07-25) TC/SC: ISO/TC 213 Number of Pages:
Revised by: ISO 1:2002
No corrigenda or amendments available