742.5 g/kg = 746.138 PSU
| g/kg | PSU |
|---|---|
| 727.5 g/kg | 731.065 |
| 732.5 g/kg | 736.089 |
| 737.5 g/kg | 741.114 |
| 742.5 | 746.138 |
| 747.5 g/kg | 751.163 |
| 752.5 g/kg | 756.187 |
| 757.5 g/kg | 761.212 |
742.5 g/kg = 746.138 PSU
1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)