Report/Guide

Miao, P; Bell, S A; Rujan, M*; Mugurel, G*; McIlroy, C (2014) Report on literature review of recent development in loss on drying method for moisture determination. NPL Report. ENG 52

Bell, S A (2013) The beginner's guide to humidity measurement. Measurement Good Practice Guide. 124

Carroll, P A; Bell, S A (2012) Consultation on the use of certified reference materials for the calibration of moisture measurement instrumentation. NPL Report. ENG 40

Brewer, P J; Milton, M J T; Harris, P M; Bell, S A; Stevens, M; Scace, G*; Abe, H*; Mackrodt, P* (2011) EURAMET 1002: International comparability in measurements of trace water vapour. NPL Report. AS 59

Carroll, P A; Bell, S A; Stevens, M (2010) Calibration issues for measurement of moisture in materials. NPL Report. ENG 21

Bell, S A; Carroll, P; Stevens, M (2009) Study of the need for traceability for humidity measurements above 100 °C - summary report. NPL Report. ENG 12

Bell, S A; Carroll, P; Stevens, M (2009) Study of the need for improved traceability for air temperature measurements - summary report. NPL Report. ENG 11

Carroll, P A; Bell, S A (2008) Needs for NMS support for measurements of moisture in materials. NPL Report. ENG 7

Bell, S A; Gardiner, T; Stevens, M; Waterfield, K* (2002) Evaluation of trace moisture sensors - interim report. NPL Report. CBTLM 19

Bell, S A (2001) A beginner's guide to uncertainty of measurement. Measurement Good Practice Guide. 11

Boyes, S J; Bell, S A (1999) Assessment of fundamental data used in humidity metrology. NPL Report. CMAM 42

Bell, S A (1999) Study of conceptual design for flow-mixing stage of low-range humidity standard generator. NPL Report. CMAM 39

Bell, S A (1998) A study of the requirements for standards for the measurement of moisture in solid materials. NPL Report. CMAM 20

Bell, S A (1996) A guide to the Measurement of Humidity. Technical Report. NPL, Teddington.

Bell, S A (1995) A survey to assess the industrial requirement for a code of practice for humidity measurement. NPL Report. MOM 124

Article

Bell, S A; Miao, P; Carroll, P A (2018) Novel calibration technique for a coulometric evolved vapor analyzer for measuring water content of materials. International Journal of Thermophysics, 39 (4). 50

Underwood, R; Gardiner, T; Finlayson, A; Bell, S A; de Podesta, M (2017) An improved non-contact thermometer and hygrometer with rapid response. Metrologia, 54 (1). S9-S15

Bell, S A; Carroll, P A; Beardmore, S L; England, C*; Mander, N* (2017) A methodology for study of in-service drift of meteorological humidity sensors. Metrologia, 54 (3). S63-S73

Lovell-Smith, J W*; Feistel, R*; Harvey, A H*; Hellmuth, O*; Bell, S A; Heinonen, M*; Cooper, J R* (2016) Metrological challenges for measurements of key climatological observables. Part 4: atmospheric relative humidity. Metrologia, 53 (1). R40-R59

Feistel, R*; Wielgosz, R*; Bell, S A; Camoes, M F*; Cooper, J R*; Dexter, P*; Dickson, A G*; Fisicaro, P*; Harvey, A H*; Heinonen, M*; Hellmuth, O*; Kretzschmar, H J*; Lovell-Smith, J W*; McDougall, T J*; Pawlowicz, R*; Ridout, P*; Seitz, S*; Spitzer, P*; Stoica, D*; Wolf, H* (2016) Metrological challenges for measurements of key climatological observables: oceanic salinity and pH, and atmospheric humidity. Part 1: overview. Metrologia, 53 (1). R1-R11

Bell, S A; Stevens, M*; Abe, H*; Benyon, R*; Bosma, R*; Fernicola, V*; Heinonen, M*; Huang, P*; Kitano, H*; Li, Z*; Nielsen, J*; Ochi, N*; Podmurnaya, O A*; Scace, G*; Smorgon, D*; Vicente, T*; Vinge, A F*; Wang, L*; Yi, H* (2015) Final report on CCT-K6: comparison of local realisations of dew-point temperature scales in the range -50 ºC to +20 ºC. Metrologia, 52 (1A). 03005.

Merlone, A*; Lopardo, G*; Sanna, F*; Bell, S A; Benyon, R*; Bergerud, R A*; Bertiglia, F*; Bojkovski, J*; Bose, N*; Brunet, M*; Cappella, A*; Coppa, G*; del Campo, D*; Dobre, M*; Drnovsek, J*; Ebert, V*; Emardson, R*; Fernicola, V*; Flakiewicz, K*; Gardiner, T; Garcia-Izquierdo, C*; Georgin, E*; Gilabert, A*; Grykalowska, A*; Grudniewicz, E*; Heinonen, M*; Holmsten, M*; Hudoklin, D*; Johansson, J*; Kajastie, H*; Kaykisizli, H*; Klason, P*; Knazovicka, L*; Lakka, A*; Kowal, A*; Muller, H*; Musacchio, C*; Nwaboh, J*; Pavlasek, P*; Piccato, A*; Pitre, L*; de Podesta, M; Rasmussen, M K*; Sairanen, H*; Smorgon, D*; Sparasci, F*; Strnad, R*; Szmyrka-Grzebyk, A*; Underwood, R (2015) The MeteoMet project - metrology for meteorology: challenges and results. Meteorological Applications, 22. pp. 820-829.

Bell, S A; Boese, N*; Bosma, R*; Buzoianu, M*; Carroll, P; Fernicola, V*; Georgin, E*; Heinonen, M*; Kentved, A*; Melvad, C*; Nielsen, J* (2015) Status and strategy for moisture metrology in European metrology institutes. Int. J. Thermophysics, 36 (8). pp. 2185-2198.

Carroll, P A; Bell, S A; Stevens, M (2015) A calibration facility for dew point in air up to 1 Mpa. Int. J. Thermophysics, 36 (12). pp. 3453-3465.

Underwood, R; Gardiner, T; Finlayson, A; Few, J; Wilkinson, J; Bell, S A; Merrison, J*; Iverson, J J*; de Podesta, M (2015) A combined non-contact acoustic thermometer and infrared hygrometer for atmospheric measurements. Meteorological Applications, 22. pp. 830-835.

Gallegos, J G*; Benyon, R*; Avila, S*; Benito, A*; Gavioso, R M*; Mitter, H*; Bell, S A; Stevens, M; Bose, N*; Ebert, V*; Heinonen, M*; Sairanen, M*; Peruzzi, A*; Bosma, R*; Val'kova, R* (2015) An investigation of the comparative performance of diverse humidity sensing techniques in natural gas. J. Natural Gas Sci. Eng., 23. pp. 407-416.

Heinonen, M*; Anagnostou, M*; Bartolo, J*; Bell, S A; Benyon, R*; Bergerud, R A*; Bojkovski, J*; Bose, N*; Dinu, C*; Smorgon, D*; Flakiewicz, K*; Martin, M J*; Nedialkov, S*; Nielsen, M B*; Aytekin, S O*; Otych, J*; Pedersen, M*; Rujan, M*; Testa, N*; Turzo-Andras, E*; Vilbaste, M*; White, M* (2014) Comparison of air temperature calibrations. Int. J. Thermophysics, 35 (6-7). pp. 1251-1272.

Willett, K M*; Dunn, R J H*; Thorne, P W*; Bell, S A; de Podesta, M; Parker, D E*; Jones, P D*; Williams, C N* (2014) HadISDH land surface multi-variable humidity and temperature record for climate monitoring. Climate of the Past, 10 (6). pp. 1983-2006.

Willett, K M*; Williams, C N*; Dunn, R J H*; Thorne, P W*; Bell, S A; de Podesta, M; Jones, P D*; Parker, D E* (2013) HadISDH: An updated land surface specific humidity product for climate monitoring. Climate of the Past, 9 (2). pp. 657-677.

Merlone, A*; Lopardo, G*; Antonsen, I*; Bell, S A; Benyon, R*; Boese, N*; del Campo, D*; Dobre, M*; Drnovsek, J*; Elkatmis, A*; Georgin, E*; Grudniewicz, E*; Heinonen, M*; Holstein-Rathiou, C*; Johansson, J*; Klason, P*; Knorova, R*; Melvad, C*; Merrison, J*; Migala, K*; de Podesta, M; Saathoff, H*; Smorgon, D*; Sparasci, F*; Strnad, R*; Szmyrka-Grzebyk, A*; Vuillermoz, E* (2013) A new challenge for meteorological measurements: the "MeteoMet" project - metrology for meteorology. AIP Conf. Proc., 1552. pp. 1030-1035.

Bell, S A; Hinds, G; de Podesta, M; Stevens, M; Wilkinson, J (2012) Humidity, pressure and temperature measurements in an interdigitated-flow PEM hydrogen fuel cell. Int. J. Thermophysics, 33 (8-9). pp. 1583-1594.

Heinonen, M*; Anagnostou, M*; Bell, S A; Stevens, M; Benyon, R*; Bergerud, R A*; Bojkovski, J*; Bosma, R*; Nielsen, J*; Bose, N*; Cromwell, P*; Dogan, A K*; Aytekin, S*; Uytun, A*; Fernicola, V*; Flakiewicz, K*; Blanquart, B*; Hudokin, D*; Jacobson, P*; Kentved, A*; Loio, I*; Mamontov, G*; Masarykova, A*; Mitter, H*; Mnguni, R*; Otych, J*; Steiner, A*; Zsofia, N S*; Zvizdic, D* (2012) Investigation of the equivalence of national dew-point temperature realizations in the range -50 °C to +20 °C. Int. J. Thermophysics, 33 (8-9). pp. 1422-1437.

Carroll, P A; Bell, S A; Maxwell, A S; Tomlins, P E (2012) Non-destructive moisture content measurement of bioabsorbable polymers used in medical implants. Int. J. Thermophysics, 33 (8-9). pp. 1650-1660.

Underwood, R J; Cuccaro, R*; Bell, S A; Gavioso, R M*; Ripa, D M*; Stevens, M; de Podesta, M (2012) A microwave resonance dew-point hygrometer. Meas. Sci. Technol., 23 (8). 085905

de Podesta, M; Sutton, G; Underwood, R; Bell, S A; Stevens, M; Byrne, T; Josephs-Franks, P W (2011) Outgassing of water vapour, and its significance in experiments to determine the Boltzmann constant. Metrologia, 48 (1). pp. L1-L6.

Hinds, G; Stevens, M; Wilkinson, J*; de Podesta, M; Bell, S A (2009) Novel in-situ measurements of relative humidity in a polymer electrolyte membrane fuel cell. J. Power Sources, 186 (1). pp. 52-57.

Bell, S A; Benyon, R*; Böse, N*; Heinonen, M* (2008) A roadmap for humidity and moisture measurement. Int. J. Thermophysics, 29 (5). pp. 1537-1543.

Stevens, M; Benyon, R*; Bell, S A; Vicente, T* (2008) A trial intercomparison of humidity generators at extremes of range using relative humidity transmitters. Int. J. Thermophysics, 29 (5). pp. 1685-1695.

Bell, S A (2007) Humidity measurement and applications - an introduction. Meas. Control, 40 (9). p. 267.

Edwards, C S; Barwood, G P; Bell, S A; Gill, P; Stevens, M (2001) A tunable diode laser absorption spectrometer for moisture measurements in the low ppbv range. Meas. Sci. Technol., 12. pp. 1214-8.

Bell, S A; Scott, M* (1995) A code of practice for humidity measurement. Meas. Control, 28 (May). 106 - 108

Conference or Workshop Item

Bell, S A; Hinds, G; Stevens, M; Wilkinson, J; de Podesta, M (2009) Localised relative humidity and temperature measurements in a PEM hydrogen fuel cell. In: Metrologia 09 - International Congress of Metrologia 2009, 10 March 2009, Lisbon, Portugal.

Edwards, C S; Barwood, G P; Gill, P; Bell, S A; Stevens, M; Schirmer, B*; Melling, A*; Venzke, H*; Weber, H*; Benyon, R*; Mackrodt, P*; Nielsen, J*; de Groot, M J*; Pusterla, L* (2001) Development and evaluation of a tunable diode laser absorption spectrometer for trace humidity measurements. In: TEMPMEKO 01, June 2001, Berlin, Germany.

Bell, S A; Stevens, M; Barwood, G P; Edwards, C S; Gill, P (2001) Evaluation of a tuneable diode laser absorption spectrometer against the NPL low frost-point generator. In: TEMPMEKO 01, June 2001, Berlin, Germany.

Bell, S A; Boyes, S J (2001) An assessment of experimental data that underpin formulae for water vapour enhancement factor. In: TEMPMEKO 01, June 2001, Berlin, Germany.

Bell, S A (1999) A beginner's guide to uncertainty of measurement. In: National Measurement Conference (NMC) 1999, 2-4 November 1999, Brighton. UK.

Bell, S A (1998) Validation of the NPL primary gravimetric hygrometer. In: Proc. Third international symposium on humidity and moisture., April 1998, London, UK.

Actis, A*; Bell, S A; Benyon, R*; Cretinon, B*; de Groot, M*; Heinonen, M*; Scholz, G*; Steiner, A* (1998) The use of a humid air generator as a reference method for measuring humidity. In: Proc. Third International Symposium on Humidity and Moisture., April 1998, London, UK.