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International Practical Temperature Scale of 1968

Nature volume 222, pages 929931 (07 June 1969) | Download Citation

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Abstract

The new International Practical Temperature Scale of 1968 (IPTS-68) was approved by the Comité International des Poids et Mesures in 1968 and put into force by the National Physical Laboratory on January 1 this year. This revision of the IPTS-48 achieves the two objectives of making it agree with thermodynamic temperature values and of extending its range down to 13.81 K.

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References

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    , and , Rev. Mod. Phys., 37, 537 (1965).

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Affiliations

  1. Division of Quantum Metrology, National Physical Laboratory, Teddington, Middlesex

    • C. R. BARBER

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DOI

https://doi.org/10.1038/222929a0

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