L Lipiński et al 2006 Metrologia 43 435 doi:10.1088/0026-1394/43/5/015
L Lipiński1, A Kowal1, A Szmyrka-Grzebyk1, H Manuszkiewicz1, P P M Steur2 and F Pavese2
Show affiliationsWe present accurate measurements of the triple point of nitrogen. The quality of this triple point is once more confirmed, and its temperature value is found to be T90 = 63.1526 K (expanded uncertainty U = 0.30 mK, reproducibility better than 0.1 mK). This is the first direct determination of this point on ITS-90 since the introduction of the scale. This point is useful as a non-uniqueness checkpoint.
06.20.Dk Measurement and error theory
06.20.fb Standards and calibration
07.20.Mc Cryogenics; refrigerators, low-temperature equipment
Issue 5 (October 2006)
Received 31 May 2005
Published 21 September 2006
L Lipiński et al 2006 Metrologia 43 435
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Claudia L Torres-Martínez et al 1999 Nanotechnology 10 340
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Eric Akkermans and Sankalpa Ghosh 2004 J. Phys. B: At. Mol. Opt. Phys. 37 S127
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V N Rudenko et al 2003 Class. Quantum Grav. 20 317
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Bhinyo Panijpan et al 2009 Phys. Educ. 44 599