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 to1 K, PLTS-2000,
recommends that the PLTS-2000 be adopted on a provisional basis.
DOI : 10.59161/CIPM2000REC1E
The reader should note that the official version of this Resolution is the French text