549.5 g/kg = 552.193 PSU
| g/kg | PSU |
|---|---|
| 534.5 g/kg | 537.119 |
| 539.5 g/kg | 542.144 |
| 544.5 g/kg | 547.168 |
| 549.5 | 552.193 |
| 554.5 g/kg | 557.217 |
| 559.5 g/kg | 562.242 |
| 564.5 g/kg | 567.266 |
549.5 g/kg = 552.193 PSU
1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)