New Primary Standards for Establishing SI Traceability for Moisture Measurements in Solid Materials

Heinonen, M.VTT Technical Research Centre of Finland, Centre for Metrology MIKES, Espoo, Finland (author)

The SIB64 METefnet project is funded by the European Metrology Research Programme (EMRP) that is jointly funded by the EMRP participating countries within EURAMET and the European Union.
A European research project METefnet addresses a fundamental obstacle to improving energy-intensive drying process control: due to ambiguous reference analysis methods and insufficient methods for estimating uncertainty in moisture measurements, the achievable accuracy in the past was limited and measurement uncertainties were largely unknown. This paper reports the developments in METefnet that provide a sound basis for the SI traceability: four new primary standards for realizing the water mass fraction were set up, analyzed and compared to each other. The operation of these standards is based on combining sample weighing with different water vapor detection techniques: cold trap, chilled mirror, electrolytic and coulometric Karl Fischer titration. The results show that an equivalence of 0.2 % has been achieved between the water mass fraction realizations and that the developed methods are applicable to a wide range of materials.

Bell, S.National Physical Laboratory, Teddington, UK (author)
Il Choi, B.Korea Research Institute of Standards and Science, Daejeon, Republic of Korea (author)
Cortellessa, G.Università degli Studi di Cassino e del Lazio Meridionale, Cassino, Italy (author)
Fernicola, V.Istituto Nazionale di Ricerca Metrologica, Turin, Italy (author)
Georgin, E.Centre Technique des Industries Aérauliques et Thermiques, Lyon, France (author)
Hudoklin, D.Faculty of Electrical Engineering, University of Ljubljana, Ljubljana, Slovenia (author)
Ionescu, G. V.National Institute of Metrology, Bucharest, Romania (author)
Ismail, N.National Institute of Standard, Giza, Egypt (author)
Keawprasert, T.National Institute of Metrology, Pathumthani, Thailand (author)
Krasheninina, M.Ural Research Institute for Metrology, Yekaterinburg, Russia (author)
Aro, R.,1992-University of Tartu, Tartu, Estonia(Swepub:oru)rao (author)
Nielsen, J.Danish Technological Institute, Aarhus, Denmark (author)
Oğuz Aytekin, S.TÜBİTAK Ulusal Metroloji Enstitüsü, Kocaeli, Turkey (author)
Österberg, P.University of Oulu, Kajaani, Finland; Measurepolis Development Ltd, Kajaani, Finland (author)
Skabar, J.Instituto Nacional de Tecnologia Industrial, Buenos Aires, Argentina (author)
Strnad, R.Czech Metrology Institute, Brno, Czech Republic (author)
VTT Technical Research Centre of Finland, Centre for Metrology MIKES, Espoo, FinlandNational Physical Laboratory, Teddington, UK (creator_code:org_t)

By the author/editor: Heinonen, M.; Bell, S.; Il Choi, B.; Cortellessa, G.; Fernicola, V.; Georgin, E.; show more...; Hudoklin, D.; Ionescu, G. V.; Ismail, N.; Keawprasert, T.; Krasheninina, M.; Aro, R., 1992-; Nielsen, J.; Oğuz Aytekin, S.; Österberg, P.; Skabar, J.; Strnad, R.; show less...

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NATURAL SCIENCES: NATURAL SCIENCES; and Chemical Science ...; and Analytical Chemi ...

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