548 g/kg to PSU

548 g/kg = 550.685 PSU

g/kgPSU
533 g/kg535.612
538 g/kg540.636
543 g/kg545.661
548550.685
553 g/kg555.71
558 g/kg560.734
563 g/kg565.759

548 g/kg = 550.685 PSU

Formula

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