Look up: outgassing

1. 
   outgassing
   Refers to gaseous emissions from solids or liquids, usually caused by exposure to high operating temperatures and/or altitude (low external pressure). Outgassing may come from absorbed gas, from the vaporisation of volatile contaminants, or from the breakdown of constituent materials. In a printed circuit board, outgassing may result in delaminati ...
   Found on http://www.ami.ac.uk/courses/topics/0100
   
   
2. 
   Outgassing
   Release of solvents and moisture from composite parts under the hard vacuum of space.
   Found on http://www.komprex.com/Glossary/index.ht
   
   
3. 
   outgassing
   the gas evolution rate per unit surface area of material used in a vacuum system; specified figures represent the ultimate rates for freshly-cleaned specimens contained in a high vacuum for many hours Category: Electrical engineering and energy • the emanation of volatile matter of any kind from solid materials in a vacuum Category: Physics
   Found on http://www.mijnwoordenboek.nl/definition
   
   
4. 
   Outgassing
   `Outgassing` (sometimes called `offgassing`, particularly when in reference to indoor air quality) is the slow release of a gas that was trapped, frozen, absorbed or adsorbed in some material. It can include sublimation and evaporation which are phase transitions of a substance into a gas, as well as desorption, seepage from cracks or internal volumes and gaseous products of slow chemical reactions. Boiling is generally thought of as a separate p...
   Found on http://en.wikipedia.org/wiki/Outgassing
   
   
5. 
   Outgassing
   When a beam line or device is under vacuum, any oils or moisture in the device has a lower vapor pressure and evaporates. This is known as outgassing and spoils vacuum making it difficult for the device in question to pump down to operating vacuum levels. For this reason it is necessary to ensure that vacuum devices are exceptionally clean on the inside before they are used.
   Found on http://www-bdnew.fnal.gov/operations/acc
   
   
6. 
   Outgassing
   When a beam line or device is under vacuum, any oils or moisture in the device has a lower vapor pressure and evaporates. This is known as outgassing and spoils vacuum making it difficult for the device in question to pump down to operating vacuum levels. For this reason it is necessary to ensure that vacuum devices are exceptionally clean on the inside before they are used.
   Found on http://www-bdnew.fnal.gov/operations/acc
   
   
7. 
   Outgassing
   evaporation of oil, dirt, or any other substance from a surface after it is placed in a low pressure or vacuum environment.
   Found on http://www.empiremagnetics.com/glossary/
   
   
8. 
   Outgassing
   The process by which materials expel or release gasses.
   Found on http://www.electromn.com/glossary/o.htm
   
   
9. 
   outgassing
   Venting of gases from the crust of a planet or moon. Outgassing is believed to be a principal source of secondary atmospheres.
   Found on http://www.daviddarling.info/encyclopedi
   
   
10. 
    outgassing
    The process by which materials expel or release gases.
    Found on http://www.daviddarling.info/encyclopedi