Bacquart, T; van der Veen, A M H*; Bartlett, S; Ent, H*; van Wijk, J I T*; Minarro, M D; Hill-Pearce, R E; Brewer, P J; Brown, R J C; Brown, A S; Murugan, A (2017) Euramet 1220: International comparability on hydrogen purity analysis. NPL Report. ENV 16
Brown, R J C; Braysher, E C*; McGhee, E A; Goddard, S L; Ent, H*; Kim, K H*; Nielsen, J* (2017) Characterising and reducing the blank response from mercury vapour sorbent tubes. Anal. Methods, 9 (18). pp. 2654-2659.
Brown, R J C; Brewer, P J; Harris, P M; Davidson, S; van der Veen, A M H*; Ent, H* (2017) On the traceability of gaseous reference materials. Metrologia, 54 (3). L11-L18
Brown, R J C; Brewer, P J; Ent, H*; Fisicaro, P*; Horvat, M*; Kim, K-H*; Quetel, C R* (2015) Who should take responsibility for decisions on internationally recommended datasets? The case of the mass concentration of mercury in air at saturation. Metrologia, 52 (5). L25-L30
Quetel, C R*; Zampella, M*; Brown, R J C; Ent, H*; Horvat, M*; Paredes, E*; Tunc, M* (2014) International system of units traceable results of Hg mass concentration at saturation in air from newly developed measurement procedure. Anal. Chem., 86 (15). pp. 7819-7827.
Brown, A S; van der Veen, A M H*; Arrhenius, K*; Downey, M L; Kuhnemuth, D*; Li, J R*; Ent, H*; Culleton, L P* (2014) Traceable reference gas mixtures for sulfur-free natural gas odorants. Anal. Chem., 86 (13). pp. 6695-6702.
Ent, H*; van Andel, I*; Heemskerk, M*; van Otterloo, P*; Bavius, W*; Baldan, A*; Horvat, M*; Brown, R J C; Quetel, C R* (2014) A gravimetric approach to providing SI traceability for concentration measurement results of mercury vapor at ambient air levels. Meas. Sci. Technol., 25 (11). 115801
Baldan, A*; Ent, H*; van der Veen, A M H*; Held, A*; Ulberth-Buchgraber, M*; Daroda, R J*; da Cunha, V S*; Wise, S A*; Schantz, M*; Brewer, P J; Brown, R J C (2013) The BIOREMA project - part 1: Towards international comparability for biofuel analysis. Accred. Qual. Assur., 18 (1). pp. 19-28.
Ulberth-Buchgraber, M*; Potalivo, M*; Held, A*; Baldan, A*; van der Veen, A M H*; Ent, H*; Cunha, V S*; Daroda, R J*; Lang, B*; Schantz, M*; Hearn, R*; Brown, R J C; Brewer, P J (2013) The BIOREMA project - part 2: International interlaboratory comparison for biodiesel test methods. Accred. Qual. Assur., 18 (1). pp. 29-39.
van der Veen, A M H*; Ent, H*; Baldan, A*; da Cunha, V S*; Daroda, R J*; Lang, B*; Schantz, M*; Ulberth-Buchgraber, M*; Held, A*; Hearn, R*; Brown, R J C; Brewer, P J (2013) The BIOREMA project - part 3: International interlaboratory comparison for bio-ethanol test methods. Accred. Qual. Assur., 18 (1). pp. 41-50.
Brown, A S; Jones, D N; Milton, M J T; Downey, M L; Vargha, G M; van der Veen, A M H*; Ent, H*; Arrhenius, K*; Tuma, D* (2011) Towards a European infrastructure for the characterisation of energy gases. In: 2nd IMEKO TC11 International Symposium Metrological Infrastructure, 15-17 June 2011, Cavtat, Dubrovnik Riviera, Croatia.