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Thread: Gas Blending Calculations

  1. #1
    RBW Member Beanie has a brilliant future Beanie has a brilliant future Beanie has a brilliant future Beanie has a brilliant future Beanie has a brilliant future Beanie has a brilliant future Beanie has a brilliant future Beanie has a brilliant future Beanie has a brilliant future Beanie has a brilliant future Beanie has a brilliant future Beanie's Avatar
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    Question Gas Blending Calculations

    I'm just filling in 5 minutes at work by creating a quick crib sheet ot go in my blending / booster box. I have the start from empty Gas blending calculations, well I think there right:

    Trimix
    He Pressure: He * Fill Pres
    O2 Pessure: (O2 / (1 - He) -.21) / .79) * (Fill pres - He Pres)

    Nitrox
    O2 Pessure: (O2 -.21 / .79) * (Fill pres)

    But I want the ones for top ups, I know there in various books which I have at home but I want to do it now and then put the calculations over in Scupedia.

    So if you guys could check my calculations and let me know what the top up ones are. I'd be greatful.
    :D
    Last edited by Beanie; 26th June 2006 at 13:08.

  2. #2
    Hammerhead CCR diverklondike has a reputation beyond repute diverklondike has a reputation beyond repute diverklondike has a reputation beyond repute diverklondike has a reputation beyond repute diverklondike has a reputation beyond repute diverklondike has a reputation beyond repute diverklondike has a reputation beyond repute diverklondike has a reputation beyond repute diverklondike has a reputation beyond repute diverklondike has a reputation beyond repute diverklondike has a reputation beyond repute diverklondike's Avatar
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    Re: Gas Blending Calculations

    Beanie,

    Here is a link to a great set of gas mixing references...

    http://www.advanceddivermagazine.com/GasStationPage.htm

    I keep a copy next to my booster...

    Many thanks to Curt for making this part of his ADM site...

    Dive Safe...

    Mark

  3. #3
    RBW Member Beanie has a brilliant future Beanie has a brilliant future Beanie has a brilliant future Beanie has a brilliant future Beanie has a brilliant future Beanie has a brilliant future Beanie has a brilliant future Beanie has a brilliant future Beanie has a brilliant future Beanie has a brilliant future Beanie has a brilliant future Beanie's Avatar
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    Re: Gas Blending Calculations

    Very nice apart from I use Bar :) don't be understanding them PSi :)

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