16.5 PSU to ppm

16.5 PSU = 16,419.5 ppm

PSUppm
13.5 PSU13,434.2
14.5 PSU14,429.3
15.5 PSU15,424.4
16.516,419.5
17.5 PSU17,414.7
18.5 PSU18,409.8
19.5 PSU19,404.9

16.5 PSU = 16,419.5 ppm

Formula

1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)