1. Viscosity and density of common anaesthetic gases: implications for flow measurements 
W. Habre, T. Asztalos, P.D. Sly, F. Petak 
British Journal of Anaesthesia 
Volume 87, Issue 4, Pages (October 2001)
DOI: /bja/
Copyright © 2001 British Journal of Anaesthesia Terms and Conditions

2. Fig 1
The measurement set‐up. Pb, box pressure; PTG, pneumotachograph; V˙ box flow.
British Journal of Anaesthesia  , DOI: ( /bja/ )
Copyright © 2001 British Journal of Anaesthesia Terms and Conditions

3. Fig 2
Resistance (R) and reactance (X) values for air and oxygen (the dashed lines indicate the calculated resistance and reactance values, and the continuous lines represent the resistance and reactance values measured with the present set‐up). Error bars represent sd.
British Journal of Anaesthesia  , DOI: ( /bja/ )
Copyright © 2001 British Journal of Anaesthesia Terms and Conditions