Recommendation-CIPM-2000-1

Recommendation 1 of the 89th CIPM (2000)

Extension of the International Temperature Scale below 0.65 K

The Comité International des Poids et Mesures,

considering

  • Resolution 9 of the 21st Conférence Générale des Poids et Mesures inviting the Comité International des Poids et Mesures to prepare a 3He melting pressure equation as a function of thermodynamic temperature to serve as the basis for an extension of the International Temperature Scale of 1990 (ITS-90) below its present lower limit of 0.65 K,
  • that agreement has now been reached on a Provisional Low Temperature Scale, 0.9 mK to 1 K, PLTS-2000,

recommends that the PLTS-2000 be adopted on a provisional basis.

reference The reader should note that the official version of this Resolution is the French text

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