131.5 g/kg = 132.144 PSU
| g/kg | PSU |
|---|---|
| 116.5 g/kg | 117.071 |
| 121.5 g/kg | 122.095 |
| 126.5 g/kg | 127.12 |
| 131.5 | 132.144 |
| 136.5 g/kg | 137.169 |
| 141.5 g/kg | 142.193 |
| 146.5 g/kg | 147.218 |
131.5 g/kg = 132.144 PSU
1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)