Keywords:thermometry, hydrogen, manometric
This article is about the gas thermometers on which modern thermometery is based.
Modern thermometry is based on the ideal gas scale established with the the aid of a Gas thermometer. Of all the properties of systems that have been studied for possible use in the measurement of temperature the pressure of a gas at constant volume has been found to excel in sensitivity accuracy and reproducibility.
Thermal physics —A.B. Gupta , H.P. Roy