Mass to PPM conversation


        
            
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            ppm vs. Mass per Unit Volume

The concentration of a component can be measured as mass per unit volume - like mg/liter, mg/cm3 etc.
Weight of substance added to one unit volume of water to give one part per million (ppm)
1 ppm
= 2.72 pounds per acre-foot

= 1,233 grams per acre-foot

= 1.233 kilograms per acre-foot

= 0.0283 grams per cubic foot

= 0.0000624 pounds per cubic foot

= 0.0038 grams per US gallon

= 0.058419 grains per US gallon

= 0.07016 grains per Imperial gallon

= 1 milligram per liter (mg/L)

= 1 microlitre ( μL ) per liter

= 0.001 gram per litre

= 8.345 pounds per million gallons of water