34,640 mg/L = 34.81 PSU
| mg/L | PSU |
|---|---|
| 34,625 mg/L | 34.795 |
| 34,630 mg/L | 34.8 |
| 34,635 mg/L | 34.805 |
| 34,640 | 34.81 |
| 34,645 mg/L | 34.815 |
| 34,650 mg/L | 34.82 |
| 34,655 mg/L | 34.825 |
34640 mg/L = 34.81 PSU
1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)