455.5 g/kg = 457.732 PSU
| g/kg | PSU |
|---|---|
| 440.5 g/kg | 442.658 |
| 445.5 g/kg | 447.683 |
| 450.5 g/kg | 452.707 |
| 455.5 | 457.732 |
| 460.5 g/kg | 462.756 |
| 465.5 g/kg | 467.781 |
| 470.5 g/kg | 472.805 |
455.5 g/kg = 457.732 PSU
1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)