554 g/kg to PSU

554 g/kg = 556.715 PSU

g/kgPSU
539 g/kg541.641
544 g/kg546.666
549 g/kg551.69
554556.715
559 g/kg561.739
564 g/kg566.764
569 g/kg571.788

554 g/kg = 556.715 PSU

Formula

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