For gas fuel or for both gas and other fuels (HS 732111), -- For gas fuel or for both gas and other fuels (HS 732181) . Fuels (ICS 75.160)

This draft test method covers the determination of the existent gum content of aviation fuels, and the gum content of motor gasolines or other volatile distillates in their finished form, (including those containing alcohol and ether type oxygenates and deposit control additives) .