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... > Sample > Material > Material processing > Material treatment > Heat-treatment > Heat-treatment description > Pressure > High Vacuum (HV)
... > Sample > Sample handling > Sample handling precaution > Sample sensitivity factor > Mechanical stress > Pressure > High Vacuum (HV)

Preferred term

High Vacuum (HV)  

Definition

  • 1. High vacuum refers to a pressure low enough that the mean free path (the distance traveled between collisions) of molecules in the residual gas is greater than the dimensions of the vacuum vessel. (Britannica). 2. A vacuum with pressure in the range from 100 mPa to 100 nPa (Wikipedia).

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URI

https://purls.helmholtz-metadaten.de/evoks/sdv/HighVacuum

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