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7. Fans – Mechanical ventilation – Drainage
7.1 Choosing a fan
For a technique involving the use of a fan, the fan must :
be robust, as it will run continuously;
be protected from the risk of condensation in the ducts, which can damage the fan;
weatherproof if placed outdoors.
There are three main fan families: axial fans, centrifugal fans and helical-centrifugal or tubular fans.
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Fans – Mechanical ventilation – Drainage
Bibliography
Standards and norms
- Nuclear energy – Measuring radioactivity in the environment – Air – Radon 222: methods for integrated measurement of the mean volumetric activity of radon, in the atmospheric environment, with passive sampling and off-line analysis [cancelled on October 5, 2012, replaced by NF ISO 11665-4] - NF M60-766 - Septembre 2004
- Measuring radioactivity in the environment – Air: radon 222 – Part 4: Integrated measurement method...
Regulations
Code de la santé publique (new regulatory part) : Chapter 3 Ionizing radiation – Section 1 General measures to protect the population against ionizing radiation – Section 2 Exposure to ionizing radiation of natural origin – Articles R. 1333-1 to R. 1333-16.
Code de la santé publique (new legislative part) : Titre 3 Prévention des risques sanitaires liés à l'environnement et au travail – Chapter 3 Ionizing...
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