185.5 g/kg = 186.409 PSU
| g/kg | PSU |
|---|---|
| 170.5 g/kg | 171.335 |
| 175.5 g/kg | 176.36 |
| 180.5 g/kg | 181.384 |
| 185.5 | 186.409 |
| 190.5 g/kg | 191.433 |
| 195.5 g/kg | 196.458 |
| 200.5 g/kg | 201.482 |
185.5 g/kg = 186.409 PSU
1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)