ITS-90 Astronomy Abbreviation

ITS-90 has various meanings in the Astronomy category. Discover the full forms, definitions, and usage contexts of ITS-90 in Astronomy.

International Temperature Scale of 1990

An approximation to the thermodynamic temperature scale, it became the internationally recognized standard on January 1, 1990. On the ITS–90 scale, the atmospheric boiling temperature of water is approximately 373.124K (99.974degC).

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