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Thread: OSEL iCCR

  1. #71
    Last of the Mohicans gobfish1's Avatar
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    He with no name is no doubt working hard trying to save us all with his next dig idea.
    That or him and Brad are hunkerd down at the Portuguese villa/HQ and enjoying a 2nd honeymoon.
    Last edited by gobfish1; 03-03-2021 at 07:50 AM.
    None diver as of 2018.

  2. #72
    Bananas! Chimp's Avatar
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    Quote Originally Posted by plazma View Post
    It's the way CE tests are defined. It only calculates the surface area inside the "Lissajous" curve. It doesn't calculate negative pressure to WOB. There are only limits for hydrostatic imbalance (+-20mbar from lung centroid). For human lungs it doesn't matter if the pressure comes from resistive flow restriction or hydrostatic imbalance.
    For CE WOB calculation you get the same result for same curve shape even if its around the 0 x-axis or clearly below or above it.
    Wasn't always this way. Prior to latest EN14143 (2013) the earlier version had max inhale/exhale pressures mandated at 25mbar. So the top and bottom of the Lissajous had to be between these levels (and so be centralised fairly close to the x-axis). Also had slightly greater limits for hydrostatic imbalance in certain orientations (+23/-25).
    Believe it or not, bananas do contain a small quantity of Musa Sapientum bananadine, which is a mild, short-lasting psychedelic

  3. #73
    New TDF Member plazma's Avatar
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    Quote Originally Posted by Chimp View Post
    Wasn't always this way. Prior to latest EN14143 (2013) the earlier version had max inhale/exhale pressures mandated at 25mbar. So the top and bottom of the Lissajous had to be between these levels (and so be centralised fairly close to the x-axis). Also had slightly greater limits for hydrostatic imbalance in certain orientations (+23/-25).
    Here is the prEN14143:2010 version which is quite close to the latest official version:
    http://diyrebreathers.com/data/uploa...143_pr2010.pdf

    And the old 2003 version:
    http://diyrebreathers.com/data/uploa...14143_2003.pdf

    Just in case someone wants to take a look. I also bought the 2013 version but can't share it publicly.

  4. #74
    Bananas! Chimp's Avatar
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    Quote Originally Posted by plazma View Post
    Nice.
    5.6.1.3 & 5.6.1.4
    Believe it or not, bananas do contain a small quantity of Musa Sapientum bananadine, which is a mild, short-lasting psychedelic


 
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