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The International Temperature Scale of 1990 (ITS-90) is an equipment calibration standard specified by the International Committee of Weights and Measures (CIPM) for making measurements on the Kelvin and Celsius temperature scales. It is an approximation of thermodynamic temperature that facilitates the comparability and compatibility of ...
2.2 International temperature scale of 1990. 2.3 OV. 3 Celsius scale. ... Scale of temperature is a methodology of calibrating the physical quantity temperature in ...
For practical measurements, the International Temperature Scale of 1990 defines several fixed points and interpolation procedures. Celsius temperature: t, φ: degree Celsius °C: The degree Celsius is a special name for the unit kelvin, for use in stating values of Celsius temperature. t = T − T 0, where T 0 = 273.15 K linear expansion ...
In TEOS-10 the current standard for temperature scales, ITS-90 (International Temperature Scale of 1990) is used, while EOS-80 used the IPTS-68 (International Practical Temperature of 1968). [12] In the SIA-Library of TEOS-10 implementations to convert outdated into current scales are included.
The Kelvin scale is an absolute temperature scale that starts at the lowest possible temperature ... International Temperature Scale of 1990; kT (energy) ...
Today there is an absolute thermodynamic temperature scale. Internationally agreed temperature scales are designed to approximate this closely, based on fixed points and interpolating thermometers. The most recent official temperature scale is the International Temperature Scale of 1990.
This is a collection of temperature conversion formulas and comparisons among eight different temperature scales, several of which have long been obsolete.. Temperatures on scales that either do not share a numeric zero or are nonlinearly related cannot correctly be mathematically equated (related using the symbol =), and thus temperatures on different scales are more correctly described as ...
Ljungqvist et al. 2012 "Northern Hemisphere temperature patterns in the last 12 centuries". Marcott et al. 2013 "A Reconstruction of Regional and Global Temperature for the Past 11,300 Years" PAGES 2k Consortium 2013 (78 researchers, corresponding author Darrell S. Kaufman) "Continental-scale temperature variability during the past two millennia"