170.5 g/kg = 171.335 PSU
| g/kg | PSU |
|---|---|
| 155.5 g/kg | 156.262 |
| 160.5 g/kg | 161.286 |
| 165.5 g/kg | 166.311 |
| 170.5 | 171.335 |
| 175.5 g/kg | 176.36 |
| 180.5 g/kg | 181.384 |
| 185.5 g/kg | 186.409 |
170.5 g/kg = 171.335 PSU
1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)