677 g/kg to PSU

677 g/kg = 680.317 PSU

g/kgPSU
662 g/kg665.244
667 g/kg670.268
672 g/kg675.293
677680.317
682 g/kg685.342
687 g/kg690.366
692 g/kg695.391

677 g/kg = 680.317 PSU

Formula

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