Bilateral comparison of the realisations of the ITS-90 at the freezing points of Al (660,323 °C) and Ag (961,78 °C)

Project Description

Bilateral comparison between LNE-Cnam and KIM-LIPI to:

1) demonstrate KIM-LIPI's technical capabilities
2) link KIM-LIPI to main regional comparison EUROMET.T-K4


Final Report 2016-05-02

The thermometer RS90Z-7 of METROLOGI-LIPI has been measured at the freezing points of silver and aluminum at LNE-Cnam. At the silver freezing point, it shows a severe instability. At the aluminum freezing point it is reproducible within 1 mK, but shows a large deviation.

Such values do not allow assessing the calibration uncertainties declared by METROLOGI-LIPI at the freezing point of silver and aluminum.

It was not possible to solve the instabillity problems. So the comparison was stopped.

Subjects
Thermometry (T)
Coordinating Institute
LNE-LCM/CNAM (France)
Participating Partners
LNE (France)
Further Partners
KIM-LIPI (Research Center for calibration, instrumentation and metrology - Indonesian Institute of Sciences PUSPIPTEK, South Tangerang, Banten- INDONESIA)