Matter
Name
ultra high vacuum - ~1e-9 mbar
Family
fluid
Comments
Vacuum dominated by $H_2$ and CO
Origins
laboratory
Phase type
gas
Component type (group)
molecular (mixture)
Density
1e-15 $\pm$ 1e-15 $g.cm^{-3}$
Number
1
Mode of mixing
single material
Materials
  Name Arrangement Mass Mass fraction
Ultra high vacuum - ~1e-9 mbar 1.0