J Ancsin 1992 Metrologia 29 71 doi:10.1088/0026-1394/29/1/009
J Ancsin
Show affiliationsDesign considerations for the NRC sealed cryogenic triple point cells are discussed, together with their filling system. The versatility of the filling system is illustrated by the purification of CO2. Finally, it is shown that the effects of residual impurities upon the realized liquidus points of high-purity cryogenic substances may be demonstrated by observing the dependence of the liquidus points on the fraction of sample condensed.
07.20.Mc Cryogenics; refrigerators, low-temperature equipment
Issue 1 (1992)
Received 1 August 1991
J Ancsin 1992 Metrologia 29 71
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Geoffroy Piroux and Philippe Ruelle 2005 J. Phys. A: Math. Gen. 38 1451
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M Conti et al 2007 Phys. Med. Biol. 52 2335
D. Sen and S. Lal 2000 Europhys. Lett. 52 337
G.J. Kramer et al 2001 Nucl. Fusion 41 1135
R W Motley et al 1979 Plasma Phys. 21 567
A P Menushenkov et al 2009 J. Phys.: Conf. Ser. 190 012093