567.5 g/kg = 570.281 PSU
| g/kg | PSU |
|---|---|
| 552.5 g/kg | 555.207 |
| 557.5 g/kg | 560.232 |
| 562.5 g/kg | 565.256 |
| 567.5 | 570.281 |
| 572.5 g/kg | 575.305 |
| 577.5 g/kg | 580.33 |
| 582.5 g/kg | 585.354 |
567.5 g/kg = 570.281 PSU
1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)