156.5 g/kg = 157.267 PSU
| g/kg | PSU |
|---|---|
| 141.5 g/kg | 142.193 |
| 146.5 g/kg | 147.218 |
| 151.5 g/kg | 152.242 |
| 156.5 | 157.267 |
| 161.5 g/kg | 162.291 |
| 166.5 g/kg | 167.316 |
| 171.5 g/kg | 172.34 |
156.5 g/kg = 157.267 PSU
1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)