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    selvaa.1549's Avatar
    selvaa.1549 Posts: 1, Reputation: 1
    New Member

    Aug 30, 2010, 02:49 PM
    What is ppm?how I do ppm calculate?
    What is ppm?how I do ppm calculate?
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
    Uber Member

    Aug 30, 2010, 03:33 PM

    Ppm is parts per million, 1 ppm equals 1 millionth of 100%

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