389.5 g/kg = 391.409 PSU
| g/kg | PSU |
|---|---|
| 374.5 g/kg | 376.335 |
| 379.5 g/kg | 381.36 |
| 384.5 g/kg | 386.384 |
| 389.5 | 391.409 |
| 394.5 g/kg | 396.433 |
| 399.5 g/kg | 401.458 |
| 404.5 g/kg | 406.482 |
389.5 g/kg = 391.409 PSU
1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)