helium temperature scale | has approval date 1958 | |
has definition The vapour pressure of helium 4 is used as an indication of temperature in the region 1 to 5.2 K. | |
is an instance of temperature unit | |
temperature unit | is a unit of temperature | |
has triple point of water -has source: Jerrard, H.G., McNeill, D.B. 1992 Dictionary of Scientific Units, Chapman and Hall | |
has absolute zero -has source: Jerrard, H.G., McNeill, D.B. 1992 Dictionary of Scientific Units, Chapman and Hall | |
unit | has historical origin | |
represents | |