{"id":7970,"date":"2021-03-10T16:07:49","date_gmt":"2021-03-10T15:07:49","guid":{"rendered":"https:\/\/www.atollplongee.com\/glossary\/pression\/"},"modified":"2021-03-10T16:07:49","modified_gmt":"2021-03-10T15:07:49","slug":"pression","status":"publish","type":"glossary","link":"https:\/\/www.atollplongee.com\/en\/glossary\/pression\/","title":{"rendered":"Pression<\/span>"},"content":{"rendered":"

“La pression est une grandeur physique qui se définit comme étant l’intensité de la force qu’exerce un gaz par unité de surface. En plongée sous-marine, elle permet d’évaluer la quantité de gaz contenu dans un volume donné.
\nElle se mesure en pascals dans le système international (symbole Pa), mais se mesure plutôt en bars en plongée : 1bar=100000Pa=1kg\/cm2
\nEn plongée, on distingue plusieurs types de pression :
\n•\tLa pression absolue<\/a> (ou pression ambiante, ou pression environnante),
\n•\tLa pression hydrostatique<\/a>,
\n•\tla haute pression, la pression intermédiaire et la basse pression,
\n•\tLa mi-pression,
\n•\tLa notion de pression partielle<\/a>”<\/p>","protected":false},"excerpt":{"rendered":"

“La pression est une grandeur physique qui se d\u00e9finit comme \u00e9tant l’intensit\u00e9 de la force qu’exerce un gaz par unit\u00e9 de surface. En plong\u00e9e sous-marine, elle permet d’\u00e9valuer la quantit\u00e9 de gaz contenu dans un volume donn\u00e9. Elle se mesure en pascals dans le syst\u00e8me international (symbole Pa), mais se mesure plut\u00f4t en bars en […]<\/p>","protected":false},"author":13,"featured_media":0,"menu_order":0,"template":"","meta":[],"glossary-categories":[],"glossary-tags":[],"acf":[],"yoast_head":"\nPression - Atoll Plong\u00e9e Marseille<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.atollplongee.com\/en\/glossary\/pression\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pression - Atoll Plong\u00e9e Marseille\" \/>\n<meta property=\"og:description\" content=\"“La pression est une grandeur physique qui se d\u00e9finit comme \u00e9tant l’intensit\u00e9 de la force qu’exerce un gaz par unit\u00e9 de surface. En plong\u00e9e sous-marine, elle permet d’\u00e9valuer la quantit\u00e9 de gaz contenu dans un volume donn\u00e9. 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En plong\u00e9e sous-marine, elle permet d’\u00e9valuer la quantit\u00e9 de gaz contenu dans un volume donn\u00e9. 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