91.5 g/kg = 91.948 PSU
| g/kg | PSU |
|---|---|
| 76.5 g/kg | 76.875 |
| 81.5 g/kg | 81.899 |
| 86.5 g/kg | 86.924 |
| 91.5 | 91.948 |
| 96.5 g/kg | 96.973 |
| 101.5 g/kg | 101.997 |
| 106.5 g/kg | 107.022 |
91.5 g/kg = 91.948 PSU
1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)