590 g/kg to PSU

590 g/kg = 592.891 PSU

g/kgPSU
575 g/kg577.817
580 g/kg582.842
585 g/kg587.866
590592.891
595 g/kg597.915
600 g/kg602.94
605 g/kg607.964

590 g/kg = 592.891 PSU

Formula

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