4,585 ppm to PSU

4,585 ppm = 4.607 PSU

ppmPSU
4,570 ppm4.592
4,575 ppm4.597
4,580 ppm4.602
4,5854.607
4,590 ppm4.612
4,595 ppm4.618
4,600 ppm4.623

4585 ppm = 4.607 PSU

Formula

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