596.5 g/kg = 599.423 PSU
| g/kg | PSU |
|---|---|
| 581.5 g/kg | 584.349 |
| 586.5 g/kg | 589.374 |
| 591.5 g/kg | 594.398 |
| 596.5 | 599.423 |
| 601.5 g/kg | 604.447 |
| 606.5 g/kg | 609.472 |
| 611.5 g/kg | 614.496 |
596.5 g/kg = 599.423 PSU
1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)