Summary
Equations are derived for viscosities of H2, He, N2 and Ar for use at chromatographic temperatures which are accurate to within 0.3% for H2, and 0.1% for the other gases. The effect of pressure is usually negligible but may increase the viscosity of N2 or Ar by as much as 0.5% at 25°C or lower and 5 atm or higher.
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Hawkes, S.J. Viscosities of carrier gases at gas chromatograph temperatures and pressures. Chromatographia 37, 399–401 (1993). https://doi.org/10.1007/BF02272255
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DOI: https://doi.org/10.1007/BF02272255