129.5 g/kg = 130.135 PSU
| g/kg | PSU |
|---|---|
| 114.5 g/kg | 115.061 |
| 119.5 g/kg | 120.086 |
| 124.5 g/kg | 125.11 |
| 129.5 | 130.135 |
| 134.5 g/kg | 135.159 |
| 139.5 g/kg | 140.184 |
| 144.5 g/kg | 145.208 |
129.5 g/kg = 130.135 PSU
1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)