蘭金溫標

蘭氏度（蘭金，Rankine）是一個熱力學溫度單位。由英國工程師及物理學家威廉·约翰·麦夸恩·兰金在1859年提出，因而得名。现在已经废弃不用。

蘭金溫標的符號是 $\mathrm {R}$ （如果再細分為Rømer溫標和列氏溫標則以 $\mathrm {Ra}$ 表示）。有時亦會寫作 ${}^{\circ }\mathrm {R}$ ，但情況與絕對溫標一樣，是一種不正確的寫法。蘭金溫標和絕對溫標的零度皆為絕對零度，但蘭金溫標的間距是採用華氏溫標，而絕對溫標的間距則採用攝氏溫標。而-459.67 ${}^{\circ }\mathrm {F}$ 就等於0 ${}^{\circ }\mathrm {R}$ 。

現時，只有在美國的少部分工程領域是以蘭金溫標作量度單位。而科學界大多依照國際單位制即絕對溫標作為熱力學溫度的量度單位。

== 换算 =hah gay ! 華氏溫標 ! 蘭金溫標 ! 列氏溫標 |- ! 絕對零度
(根據定義) |align="center"|0 K |align="center"|−273.15 °C |align="center"|−459.67 °F |align="center"|0 R |align="center"|−218.52 °Ré |- ! 水的熔點^[1] |align="center"|273.15 K |align="center"|0 °C |align="center"|32 °F |align="center"|491.67 R |align="center"|0.00 °Ré |- ! 水的三相點
(根據定義) |align="center"|273.16 K |align="center"|0.01 °C |align="center"|32.018 °F |align="center"|491.688 R |align="center"|8×10^-3°Ré |- ! 水的沸點^[2] |align="center"|373.1339 K |align="center"|99.9839 °C |align="center"|211.9710 °F |align="center"|671.641 R |align="center"|80.00 °Ré |}

常見溫度換算表

参考资料

^ 純水的熔點是0.000089(10)度攝氏- 見Magnum, B.W. Reproducibility of the Temperature of the Ice Point in Routine Measurements (PDF). Nist Technical Note. 1995, 1411 [2007-02-11]. 已忽略未知参数|month=（建议使用|date=） (帮助)
^ For Vienna Standard Mean Ocean Water at one standard atmosphere (101.325 kPa) when calibrated solely per the two-point definition of thermodynamic temperature. Older definitions of the Celsius scale once defined the boiling point of water under one standard atmosphere as being precisely 100 °C. However, the current definition results in a boiling point that is actually 16.1 mK less. For more about the actual boiling point of water, see VSMOW in temperature measurement.

[1] 純水的熔點是0.000089(10)度攝氏- 見Magnum, B.W. Reproducibility of the Temperature of the Ice Point in Routine Measurements (PDF). Nist Technical Note. 1995, 1411 [2007-02-11]. 已忽略未知参数|month=（建议使用|date=） (帮助)

[2] For Vienna Standard Mean Ocean Water at one standard atmosphere (101.325 kPa) when calibrated solely per the two-point definition of thermodynamic temperature. Older definitions of the Celsius scale once defined the boiling point of water under one standard atmosphere as being precisely 100 °C. However, the current definition results in a boiling point that is actually 16.1 mK less. For more about the actual boiling point of water, see VSMOW in temperature measurement.

[1]

[2]