Table 1. Defining fixed points.

Exact values assigned. The pressure is 1 standard atmosphere, except for the triple point of water.

	Temperature °C (Int. 1948)
Temperature of equilibrium between liquid oxygen and its vapor (oxygen point)	−182.97
Temperature of equilibrium between ice, liquid water, and water vapor (triple point of water)	+ 0.01
Temperature of equilibrium between liquid water and its vapor (steam point)	100
Temperature of equilibrium between liquid sulfur and its vapor (sulfur point)	444.6*
Temperature of equilibrium between solid silver and liquid silver (silver point)	960.8
Temperature of equilibrium between solid gold and liquid gold (gold point)	1063

^*In place of the sulfur point, it is recommended to use the temperature of equilibrium between solid zinc and liquid zinc (zinc point) with the value 419.505 °C (Int. 1948). The zinc point is more reproducible than the sulfur point and the value which is assigned to it has been so chosen that it use leads to the same values of temperature on the International Practical Temperature Scale as does the use of the sulfur point.