CBSE Class 12-science Answered
what is ppm ?
Asked by Mukesh Kumar Mahto | 07 Nov, 2010, 12:00: AM
Expert Answer
“Parts per million” – usually abbreviated as “ppm” – means out of a million."Parts per Million" is a way to quantify very low concentrations of substances. For example, 1 ppm is equivalent to 1 milligram of something per liter of liquid (abbreviated as mg/L) or 1 milligram of something per kilogram of solid substance (abbreviated as mg/kg).
In terms of percents, 1 ppm equals 0.0001 percent.
Answered by | 07 Nov, 2010, 05:34: PM
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