647 g/kg to PSU

647 g/kg = 650.17 PSU

g/kgPSU
632 g/kg635.097
637 g/kg640.121
642 g/kg645.146
647650.17
652 g/kg655.195
657 g/kg660.219
662 g/kg665.244

647 g/kg = 650.17 PSU

Formula

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