174.5 g/kg = 175.355 PSU
| g/kg | PSU |
|---|---|
| 159.5 g/kg | 160.282 |
| 164.5 g/kg | 165.306 |
| 169.5 g/kg | 170.331 |
| 174.5 | 175.355 |
| 179.5 g/kg | 180.38 |
| 184.5 g/kg | 185.404 |
| 189.5 g/kg | 190.429 |
174.5 g/kg = 175.355 PSU
1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)