Investigation of the Equivalence of National Dew-Point Temperature Realizations in the -50 C to + 20 C Range

Martti Heinonen (Corresponding Author), Miltiadis Anagnostou, Stephanie Bell, Mark Stevens, Robert Benyon, Reidun Anita Bergerud, Jovan Bojkovski, Rien Bosma, Jan Nielsen, Norbert Böse, Plunkett Cromwell, Aliye Kartal Dogan, Seda Aytekin, Ali Uytun, Vito Fernicola, Krzysztof Flakiewicz, Bertrand Blanquart, Domen Hudoklin, Per Jacobson, Anders KentvedIsabel Lóio, George Mamontov, Alexandra Masarykova, Helmut Mitter, Regina Mnguni, Jan Otych, Anton Steiner, Nagyné Szilágyi Zsófia, Davor Zvizdic

Research output: Contribution to journalArticleScientificpeer-review

19 Citations (Scopus)

Abstract

In the field of humidity quantities, the first CIPM key comparison, CCT-K6 is at its end. The corresponding European regional key comparison, EUROMET.T-K6, was completed in early 2008, about 4 years after the starting initial measurements in the project. In total, 24 NMIs from different countries took part in the comparison. This number includes 22 EURAMET countries, and Russia and South Africa. The comparison covered the dew-point temperature range from -50 C to +20 C. It was carried out in three parallel loops, each with two chilled mirror hygrometers as transfer standards in each loop. The comparison scheme was designed to ensure high quality results with evenly spread workload for the participants. It is shown that the standard uncertainty due to the long-term instability was smaller than 0.008 C in all loops. The standard uncertainties due to links between the loops were found to be smaller than 0.025 C at -50 C and 0.010 C elsewhere. Conclusions on the equivalence of the dew-point temperature standards are drawn on the basis of calculated bilateral degrees of equivalence and deviations from the EURAMET comparison reference values (ERV). Taking into account 16 different primary dew-point realizations and 8 secondary realizations, the results demonstrate the equivalence of a large number of laboratories at an uncertainty level that is better than achieved in other multilateral comparisons so far in the humidity field.

Original languageEnglish
Pages (from-to)1422-1437
Number of pages16
JournalInternational Journal of Thermophysics
Volume33
Issue number8-9
DOIs
Publication statusPublished - 1 Sep 2012
MoE publication typeNot Eligible

Fingerprint

dew point
equivalence
temperature
humidity
hygrometers
Republic of South Africa
Russian Federation
mirrors
deviation

Keywords

  • Degrees of equivalence
  • Dew-point temperature
  • Key comparison

Cite this

Heinonen, Martti ; Anagnostou, Miltiadis ; Bell, Stephanie ; Stevens, Mark ; Benyon, Robert ; Bergerud, Reidun Anita ; Bojkovski, Jovan ; Bosma, Rien ; Nielsen, Jan ; Böse, Norbert ; Cromwell, Plunkett ; Kartal Dogan, Aliye ; Aytekin, Seda ; Uytun, Ali ; Fernicola, Vito ; Flakiewicz, Krzysztof ; Blanquart, Bertrand ; Hudoklin, Domen ; Jacobson, Per ; Kentved, Anders ; Lóio, Isabel ; Mamontov, George ; Masarykova, Alexandra ; Mitter, Helmut ; Mnguni, Regina ; Otych, Jan ; Steiner, Anton ; Szilágyi Zsófia, Nagyné ; Zvizdic, Davor. / Investigation of the Equivalence of National Dew-Point Temperature Realizations in the -50 C to + 20 C Range. In: International Journal of Thermophysics. 2012 ; Vol. 33, No. 8-9. pp. 1422-1437.
@article{7d2627a1932e4781a95dbc55d263e80f,
title = "Investigation of the Equivalence of National Dew-Point Temperature Realizations in the -50 C to + 20 C Range",
abstract = "In the field of humidity quantities, the first CIPM key comparison, CCT-K6 is at its end. The corresponding European regional key comparison, EUROMET.T-K6, was completed in early 2008, about 4 years after the starting initial measurements in the project. In total, 24 NMIs from different countries took part in the comparison. This number includes 22 EURAMET countries, and Russia and South Africa. The comparison covered the dew-point temperature range from -50 C to +20 C. It was carried out in three parallel loops, each with two chilled mirror hygrometers as transfer standards in each loop. The comparison scheme was designed to ensure high quality results with evenly spread workload for the participants. It is shown that the standard uncertainty due to the long-term instability was smaller than 0.008 C in all loops. The standard uncertainties due to links between the loops were found to be smaller than 0.025 C at -50 C and 0.010 C elsewhere. Conclusions on the equivalence of the dew-point temperature standards are drawn on the basis of calculated bilateral degrees of equivalence and deviations from the EURAMET comparison reference values (ERV). Taking into account 16 different primary dew-point realizations and 8 secondary realizations, the results demonstrate the equivalence of a large number of laboratories at an uncertainty level that is better than achieved in other multilateral comparisons so far in the humidity field.",
keywords = "Degrees of equivalence, Dew-point temperature, Key comparison",
author = "Martti Heinonen and Miltiadis Anagnostou and Stephanie Bell and Mark Stevens and Robert Benyon and Bergerud, {Reidun Anita} and Jovan Bojkovski and Rien Bosma and Jan Nielsen and Norbert B{\"o}se and Plunkett Cromwell and {Kartal Dogan}, Aliye and Seda Aytekin and Ali Uytun and Vito Fernicola and Krzysztof Flakiewicz and Bertrand Blanquart and Domen Hudoklin and Per Jacobson and Anders Kentved and Isabel L{\'o}io and George Mamontov and Alexandra Masarykova and Helmut Mitter and Regina Mnguni and Jan Otych and Anton Steiner and {Szil{\'a}gyi Zs{\'o}fia}, Nagyn{\'e} and Davor Zvizdic",
year = "2012",
month = "9",
day = "1",
doi = "10.1007/s10765-011-0950-x",
language = "English",
volume = "33",
pages = "1422--1437",
journal = "International Journal of Thermophysics",
issn = "0195-928X",
publisher = "Springer",
number = "8-9",

}

Heinonen, M, Anagnostou, M, Bell, S, Stevens, M, Benyon, R, Bergerud, RA, Bojkovski, J, Bosma, R, Nielsen, J, Böse, N, Cromwell, P, Kartal Dogan, A, Aytekin, S, Uytun, A, Fernicola, V, Flakiewicz, K, Blanquart, B, Hudoklin, D, Jacobson, P, Kentved, A, Lóio, I, Mamontov, G, Masarykova, A, Mitter, H, Mnguni, R, Otych, J, Steiner, A, Szilágyi Zsófia, N & Zvizdic, D 2012, 'Investigation of the Equivalence of National Dew-Point Temperature Realizations in the -50 C to + 20 C Range', International Journal of Thermophysics, vol. 33, no. 8-9, pp. 1422-1437. https://doi.org/10.1007/s10765-011-0950-x

Investigation of the Equivalence of National Dew-Point Temperature Realizations in the -50 C to + 20 C Range. / Heinonen, Martti (Corresponding Author); Anagnostou, Miltiadis; Bell, Stephanie; Stevens, Mark; Benyon, Robert; Bergerud, Reidun Anita; Bojkovski, Jovan; Bosma, Rien; Nielsen, Jan; Böse, Norbert; Cromwell, Plunkett; Kartal Dogan, Aliye; Aytekin, Seda; Uytun, Ali; Fernicola, Vito; Flakiewicz, Krzysztof; Blanquart, Bertrand; Hudoklin, Domen; Jacobson, Per; Kentved, Anders; Lóio, Isabel; Mamontov, George; Masarykova, Alexandra; Mitter, Helmut; Mnguni, Regina; Otych, Jan; Steiner, Anton; Szilágyi Zsófia, Nagyné; Zvizdic, Davor.

In: International Journal of Thermophysics, Vol. 33, No. 8-9, 01.09.2012, p. 1422-1437.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Investigation of the Equivalence of National Dew-Point Temperature Realizations in the -50 C to + 20 C Range

AU - Heinonen, Martti

AU - Anagnostou, Miltiadis

AU - Bell, Stephanie

AU - Stevens, Mark

AU - Benyon, Robert

AU - Bergerud, Reidun Anita

AU - Bojkovski, Jovan

AU - Bosma, Rien

AU - Nielsen, Jan

AU - Böse, Norbert

AU - Cromwell, Plunkett

AU - Kartal Dogan, Aliye

AU - Aytekin, Seda

AU - Uytun, Ali

AU - Fernicola, Vito

AU - Flakiewicz, Krzysztof

AU - Blanquart, Bertrand

AU - Hudoklin, Domen

AU - Jacobson, Per

AU - Kentved, Anders

AU - Lóio, Isabel

AU - Mamontov, George

AU - Masarykova, Alexandra

AU - Mitter, Helmut

AU - Mnguni, Regina

AU - Otych, Jan

AU - Steiner, Anton

AU - Szilágyi Zsófia, Nagyné

AU - Zvizdic, Davor

PY - 2012/9/1

Y1 - 2012/9/1

N2 - In the field of humidity quantities, the first CIPM key comparison, CCT-K6 is at its end. The corresponding European regional key comparison, EUROMET.T-K6, was completed in early 2008, about 4 years after the starting initial measurements in the project. In total, 24 NMIs from different countries took part in the comparison. This number includes 22 EURAMET countries, and Russia and South Africa. The comparison covered the dew-point temperature range from -50 C to +20 C. It was carried out in three parallel loops, each with two chilled mirror hygrometers as transfer standards in each loop. The comparison scheme was designed to ensure high quality results with evenly spread workload for the participants. It is shown that the standard uncertainty due to the long-term instability was smaller than 0.008 C in all loops. The standard uncertainties due to links between the loops were found to be smaller than 0.025 C at -50 C and 0.010 C elsewhere. Conclusions on the equivalence of the dew-point temperature standards are drawn on the basis of calculated bilateral degrees of equivalence and deviations from the EURAMET comparison reference values (ERV). Taking into account 16 different primary dew-point realizations and 8 secondary realizations, the results demonstrate the equivalence of a large number of laboratories at an uncertainty level that is better than achieved in other multilateral comparisons so far in the humidity field.

AB - In the field of humidity quantities, the first CIPM key comparison, CCT-K6 is at its end. The corresponding European regional key comparison, EUROMET.T-K6, was completed in early 2008, about 4 years after the starting initial measurements in the project. In total, 24 NMIs from different countries took part in the comparison. This number includes 22 EURAMET countries, and Russia and South Africa. The comparison covered the dew-point temperature range from -50 C to +20 C. It was carried out in three parallel loops, each with two chilled mirror hygrometers as transfer standards in each loop. The comparison scheme was designed to ensure high quality results with evenly spread workload for the participants. It is shown that the standard uncertainty due to the long-term instability was smaller than 0.008 C in all loops. The standard uncertainties due to links between the loops were found to be smaller than 0.025 C at -50 C and 0.010 C elsewhere. Conclusions on the equivalence of the dew-point temperature standards are drawn on the basis of calculated bilateral degrees of equivalence and deviations from the EURAMET comparison reference values (ERV). Taking into account 16 different primary dew-point realizations and 8 secondary realizations, the results demonstrate the equivalence of a large number of laboratories at an uncertainty level that is better than achieved in other multilateral comparisons so far in the humidity field.

KW - Degrees of equivalence

KW - Dew-point temperature

KW - Key comparison

U2 - 10.1007/s10765-011-0950-x

DO - 10.1007/s10765-011-0950-x

M3 - Article

AN - SCOPUS:84879605370

VL - 33

SP - 1422

EP - 1437

JO - International Journal of Thermophysics

JF - International Journal of Thermophysics

SN - 0195-928X

IS - 8-9

ER -