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2. Elements of low-pressure gas theory
2.1 Pressures and vacuum ranges
Visit pressure is the force exerted by a gas on the area of a real surface divided by this area.
This force comes from the impact of gas molecules hitting the surface.
A force of one newton applied to one square meter generates a pressure of one pascal.
The standard ISO 3529-1 defines different vacuum domains:
100 kPa to 100 Pa: coarse vacuum
100 Pa to 0.1 Pa: medium vacuum
0.1 Pa at 10 6 Pa:...
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Elements of low-pressure gas theory
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Bibliography
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Standards and norms
- Symboles graphiques. - DIN 28401 - 2008
- Vocabulaire et termes généraux. - ISO 3529-1 - 2019
- Pompes à vide et termes associés. - ISO 3529-2 - 2019
- Mesure des performances des pompes à vide. - ISO 21360-1 et 2 - 2020
- Dimensions et raccords rapides à colliers. - ISO 2861 - 2020
- Dimensions des brides. - ISO 1609 - 2020
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