On 20 May 2019 it is anticipated that the most radical revision of the International System of
Units (the SI), since its inception, will come into force. From that point, all the SI units will be …

A review of research into high temperature fixed points (HTFPs), since their inception at
NMIJ in 1999 until 2011 is given. HTFPs discussed in this paper are those whose transition …

At the request of the Consultative Committee for Thermometry (CCT), Working Group 4
(WG4) has critically reviewed all available measurements of the differences between …

The thermodynamic temperature of the point of inflection of the melting transition of Re-C, Pt-
C and Co-C eutectics has been determined to be 2747.84±0.35 K, 2011.43±0.18 K and …

In 2018, it is expected that there will be a major revision of the International System of Units
(SI) which will result in all of the seven base units being defined by fixing the values of …

In 2019 the kelvin was redefined in terms of the Boltzmann constant. Here we outline the
implications of that redefinition for the realization and dissemination of the unit of …

Johnson noise thermometry (JNT) is a purely electronic method of thermodynamic
thermometry. In primary JNT, the temperature is inferred from a comparison of the Johnson …

The eutectic alloys rhenium–carbon, platinum–carbon and cobalt–carbon have been
proposed as reference standards for thermometry, with temperature and uncertainty values …

A series of metal–carbon (M–C) eutectics with robust reproducible melting phase transitions
are evolving as the reference high-temperature fixed-points up to 3000° C for radiation …

Previous research effort towards the determination of the Boltzmann constant has
significantly improved the supporting theory and the experimental practice of several primary …