451.5 g/kg = 453.712 PSU
| g/kg | PSU |
|---|---|
| 436.5 g/kg | 438.639 |
| 441.5 g/kg | 443.663 |
| 446.5 g/kg | 448.688 |
| 451.5 | 453.712 |
| 456.5 g/kg | 458.737 |
| 461.5 g/kg | 463.761 |
| 466.5 g/kg | 468.786 |
451.5 g/kg = 453.712 PSU
1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)