Parts Per Million (ppm)

• (w/w) unless stated otherwise1 ppm = =

• for dilute aqueous solutions, ppm ~ mg solute/L solution

• (v/v) ppm is sometimes written ppmv1 ppmv = 1 mL solute/1 L solution.

1 g solute

106 g solution

1 mg solute

1 kg solution

Previous slide

Next slide

Back to first slide

View graphic version