1.1.1 What is vacuum?
A vacuum is defined as a diluted gas, or the corresponding state at which its pressure or density is lower than that of the ambient surrounding atmosphere. Because atmospheric pressure fluctuates locally over the Earth's surface and lessens as altitude above sea level increases, it is not possible to specify a general upper limit for the vacuum range.
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Pfeiffer Vacuum GmbH
Berliner Strasse 43
35614 Asslar
Germany
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Pfeiffer Vacuum GmbH
Berliner Strasse 43
35614 Asslar
Germany
T +49 6441 802-0
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