210.5 g/kg = 211.531 PSU
| g/kg | PSU |
|---|---|
| 195.5 g/kg | 196.458 |
| 200.5 g/kg | 201.482 |
| 205.5 g/kg | 206.507 |
| 210.5 | 211.531 |
| 215.5 g/kg | 216.556 |
| 220.5 g/kg | 221.58 |
| 225.5 g/kg | 226.605 |
210.5 g/kg = 211.531 PSU
1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)