67.5 g/kg to PSU

67.5 g/kg = 67.831 PSU

g/kgPSU
52.5 g/kg52.757
57.5 g/kg57.782
62.5 g/kg62.806
67.567.831
72.5 g/kg72.855
77.5 g/kg77.88
82.5 g/kg82.904

67.5 g/kg = 67.831 PSU

Formula

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