莱顿温标

莱顿标度 (°L) 在20世纪初通过提供氦蒸气压的常规值来校准低温间接测量值。

莱顿标度可在-183°C以下使用,这也是1930年代国际温标的起点(Awbery 1934)。

参考资料

« The 1955 Leiden scale13 was used to convert helium vapor pressures into temperatures [...] (13) H. van Dijk and M. Durieux, in Progress in Low Temperature Physics II, edited by C. J. Gorter (North-Holland Publishing Company, Amsterdam, 1957), p. 461. In the region of calibration the 1955 Leiden scale, TL55, differs from the Clement scale, T55E, by less than 0.004 deg. » (emphasis added)
« The temperature scale used was the 1937 Leiden scale. » (emphasis added)
« It should be mentioned that below -183°C, the Leiden workers do not entirely agree with some of the other cryogenic laboratories, but use a scale of their own, generally known as the Leiden scale. » (emphasis added)