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Image / Defense passive. Aeration et ventilation. Dans un abri hermetiquement clos, on admet …

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Title
Defense passive. Aeration et ventilation. Dans un abri hermetiquement clos, on admet qu'un homme au repos utilise environ 1 metre cube d'air par heure, donc : apres un certain temps d'occupation, il sera necessaire de renouveler l'air de l'abri : quand la proportion de gaz carbonique monte au-dessus de 1,50 % ; quand la proportion d'oxygene descend au-dessous de 17 %. 3 methodes : 1. Appel d'air en hauteur ... 2. Appel d'air exterieur ... 3. Regeneration
Creator
Oeuvre pour la securite
Date Created and/or Issued
1939/1940?
Contributing Institution
Hoover Institution
Collection
Hoover Institution Digital Collections
Rights Information
Please contact the contributing institution for more information regarding the copyright status of this object.
Type
image
Identifier
XX343.2614
Relation
Poster collection

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