594.5 g/kg = 597.413 PSU
| g/kg | PSU |
|---|---|
| 579.5 g/kg | 582.34 |
| 584.5 g/kg | 587.364 |
| 589.5 g/kg | 592.389 |
| 594.5 | 597.413 |
| 599.5 g/kg | 602.438 |
| 604.5 g/kg | 607.462 |
| 609.5 g/kg | 612.487 |
594.5 g/kg = 597.413 PSU
1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)