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CCT-K2: key comparison of capsule-type standard platinum resistance thermometers from 13.8 K to 273.16 K

From National Research Council Canada

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Linkhttps://www.bipm.org/documents/20126/28426029/working-document-ID-308/531f0fe7-39db-26ec-150d-10359f17c9e8
DOIResolve DOI: https://doi.org/10.4224/40003473
AuthorSearch for: 1
Affiliation
  1. National Research Council of Canada. Metrology Research Centre
SponsorSearch for: Bureau International des Poids et Mesures; Search for: Comité Consultatif de Thermométrie
FormatText, Technical Report
Physical description37 p.
Abstract
Calibrated capsule-style standard platinum resistance thermometers were used to compare national realizations of the International Temperature Scale of 1990 (ITS-90) from 13.8033 K, the triple point of equilibrium hydrogen, to 273.16 K, the triple point of water, for seven countries in CIPM Key Comparison CCT-K2. Measurements were made at temperatures close to the eight low temperature defining fixed points of the ITS-90, using a copper comparison block capable of simultaneously holding nine capsules. Two separate measurement runs were performed, allowing two different groups of capsules from each laboratory to be examined. The results are used to determine the degree of equivalence of the independent national realizations of the scale for use in the Mutual Recognition Arrangement Appendix B database. In addition, measurements were also made with the first group of thermometers at approximately eighty temperatures throughout the cryogenic range, which provide information to evaluate some of the so-called scale non-uniqueness issues inherent in the ITS-90 interpolation scheme.
Publication date
PublisherBureau International des Poids et Mesures
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  • Steele, A G, B Fellmuth, D I Head, Y Hermier, K H Kang, P P M Steur, and W L Tew. ‘CCT-K2: Key Comparison of Capsule-Type Standard Platinum Resistance Thermometers from 13.8 K to 273.16 K’. Metrologia 39, no. 6 (1 December 2002): 551–71. https://doi.org/10.1088/0026-1394/39/6/6.
NoteIncludes data in Appendices
Inclut des données en annexe
LanguageEnglish
IdentifierCCT/01-11
NRC numberNRC-INMS-618
NPARC number5764521
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Record identifier67374c84-8db3-44dd-903d-386bf83d2b63
Record created2009-03-29
Record modified2025-03-24
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