238.5 g/kg = 239.669 PSU
| g/kg | PSU |
|---|---|
| 223.5 g/kg | 224.595 |
| 228.5 g/kg | 229.62 |
| 233.5 g/kg | 234.644 |
| 238.5 | 239.669 |
| 243.5 g/kg | 244.693 |
| 248.5 g/kg | 249.718 |
| 253.5 g/kg | 254.742 |
238.5 g/kg = 239.669 PSU
1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)