Across various industries, vacuum purging is used to remove volatile substances/chemicals from the test item at low temperatures first before heating. Under vacuum, butane, propane, and other solvents convert into a gaseous form and evaporate, also known as “outgassing.” Vacuum purging works by lowering the atmospheric pressure in a vacuum oven chamber. Atmospheric pressure prevents “outgassing” from the surface area of the test specimen.
Published by Oerlikon Leybold Vacuum. Oerlikon Leybold Vacuum, a member of the globally active industrial Oerlikon Group of companies has developed into the world market leader in the area of vacuum technology.