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Outgassing Testing: Measuring Outgassing in Vacuum Environments by ASTM E595

10/29/24
By Engaged Expert Bruce Sauer and Gerry Minogue

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A free guide to the industry standard ASTM E595 for measuring outgassing in space.

Outgassed effluents from materials used in space environments can have a detrimental effect on the performance of critical applications such as optical and electronic equipment. For this reason, materials that are to be used in a vacuum environment like space require assessment of their outgassing properties.  

Testing against ASTM E595 allows quantifying the outgassing performance of materials. This enables the manufacturing of long-life reliable components that can be safely utilized in the world’s most sophisticated satellites and spacecraft.  

To learn more about outgassing testing, complete the form and download our guide.

This article will explain the phenomenon of outgassing and describe ASTM E595, covering all relevant parameters of testing, including:

  • Total mass loss (TML) 
  • Collected volatile condensable materials (CVCD) 
  • Amount of water vapor regained (WVR)

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