standard conditions for gases
Temperature, 273.15 K (
°
C) and pressure of 10
5
pascals. IUPAC recom-
mends that the former use of the pressure of 1 atm as standard pressure
(equivalent to 1.01325
×
10
5
Pa) should be discontinued.
1990, 62, 2216
IUPAC Compendium of Chemical Terminology 2nd Edition (1997)