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    subodh sahasrab's Avatar
    subodh sahasrab Posts: 1, Reputation: 1
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    #1

    Apr 13, 2015, 10:09 AM
    Calculation of p.p.m.
    How to calculate part per million doses
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #2

    Apr 13, 2015, 05:42 PM
    Volume or weight. 1 milligram per 999,999 grams of something else. 1 ML per 999,999 ML. One grain of black sand in 999,999 grains of white sand.
    kreysiz's Avatar
    kreysiz Posts: 37, Reputation: 2
    Junior Member
    		  
    #3

    Jul 19, 2015, 06:46 AM
    In a solution, there is solute and a solvent.
    Now, if the total number of species in the solution is 10^6 (i.e a million) and the number of solute species is 'x', then the concentration of the species in terms of ppm = (number of solute species/number of solution species)*10^6 = 'x' in the above case.
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