64.5 g/kg to PSU

64.5 g/kg = 64.816 PSU

g/kgPSU
49.5 g/kg49.743
54.5 g/kg54.767
59.5 g/kg59.792
64.564.816
69.5 g/kg69.841
74.5 g/kg74.865
79.5 g/kg79.89

64.5 g/kg = 64.816 PSU

Formula

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