2. Dense fluids under pressure

The notions of critical state and supercritical phase were discovered in 1822 by the Frenchman Cagnard de Latour . Above a critical temperature, the distinction between liquid and gas phase disappears, giving rise to a single phase, called supercritical. The term critical point was coined by the Englishman Andrews in 1869, based on experiments carried out on CO ₂ .

The values established experimentally, for CO...

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Dense fluids under pressure

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page Definition of cleanliness levels

Principles of dense CO2 cleaning under pressure

Bibliography

(1) - KOHLI (R.) - Surface contamination removal using dense-phase fluids: Liquid and supercritical carbon dioxide. - In Developments in surface contamination cleaning, Elsevier, p. 2-38 (2013).
(2) - NASA Document JPR 5322.1 - Contamination...

Standards and norms

Clean rooms and related controlled environments – Part 1: Classification of air particulate cleanliness - ISO 14644-1 - 2015
Clean rooms and related controlled environments – Part 2: Monitoring the maintenance of cleanroom performance for particulate air cleanliness - ISO 14644-2 - 2000
Clean rooms and related controlled environments – Part 14: Assessment of equipment suitability for use by determining...

Regulations

Order of 11/20/17 on in-service monitoring of pressure equipment and simple pressure vessels. JO n° 282 of December 3, 2017.

Arrêté du 02/05/02 relatif aux prescriptions générales applicables aux installations classées pour la protection de l'environnement soumises à déclaration sous la rubrique n° 2345 relatives à l'utilisation de solvants pour le nettoyage à sec et le traitement des textiles ou des...