4,600 ppm to PSU

4,600 ppm = 4.623 PSU

ppmPSU
4,585 ppm4.607
4,590 ppm4.612
4,595 ppm4.618
4,6004.623
4,605 ppm4.628
4,610 ppm4.633
4,615 ppm4.638

4600 ppm = 4.623 PSU

Formula

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