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Produkter & Tjänster Luftkvalitetsmätning Gasanalysatorer

You can perform the unit conversion the other way, too. Remember, for dilute solutions, you can use the approximation that 1 ppm is 1 mg/L. Use the atomic masses from the periodic table to find the molar mass of the solute. expressed in units of ppm: X ppm = ppm expressed in units of mg/m 3: X mg/m 3 = mg/m 3 In the metric system ppm for mass can be expressed in terms of milligram versus kg where 1 mg/kg = 1 part per million ppm can be also be expressed as 1 ppm = 10-6 = 0.0001 % = 0.001 ‰ (ppm) miligrams/L (mg/L) 1 M: 35.5: 35,500: 35,500: 10-1 M: 3.55: 3,550: 3,550: 10-2 M: 0.355: 355.0: 355.0: 10-3 M: 0.0355: 35.5: 35.5: 10-4 M: 0.00355: 3.55: 3.55 mg/kg to ppm (milligram/kilogram to part per million) 7 grams/decagram to milliliter/liter (g/dag to ml/l) 10 mg/cg to cm/m (milligrams/centigram to centimeters/meter) mg/kg to percent (milligram/kilogram to pct) 1 centiliter/deciliter to grams/kilogram (cl/dl to g/kg) g/kg to ppm (gram/kilogram to part per million) more from this category CONVERT MG/M 3 TO PPM. Formula: concentration (ppm) = 24.45 x concentration (mg/m 3) ÷ molecular weight For example: 50 mg/m 3 of NH 3 (17.03 g/mol) 24.45 x 100 ppm / 17.03 = 71.785ppm Re: kg/mt to ppm by Robert Fogt on 08/26/05 at 01:56:07 kilogram/tonne = 1/1000 = part per thousand (PPT) part per thousand / 1000 = part per million (PPM) So you just divide by 1000.