630 g/kg to PSU

630 g/kg = 633.087 PSU

g/kgPSU
615 g/kg618.013
620 g/kg623.038
625 g/kg628.062
630633.087
635 g/kg638.111
640 g/kg643.136
645 g/kg648.16

630 g/kg = 633.087 PSU

Formula

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