3 g/kg to PSU

3 g/kg = 3.015 PSU

g/kgPSU
1.5 g/kg1.507
2 g/kg2.01
2.5 g/kg2.512
33.015
3.5 g/kg3.517
4 g/kg4.02
4.5 g/kg4.522

3 g/kg = 3.015 PSU

Formula

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