187.5 g/kg = 188.419 PSU
| g/kg | PSU |
|---|---|
| 172.5 g/kg | 173.345 |
| 177.5 g/kg | 178.37 |
| 182.5 g/kg | 183.394 |
| 187.5 | 188.419 |
| 192.5 g/kg | 193.443 |
| 197.5 g/kg | 198.468 |
| 202.5 g/kg | 203.492 |
187.5 g/kg = 188.419 PSU
1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)