779.5 PSU = 775,699.1 ppm
| PSU | ppm |
|---|---|
| 764.5 PSU | 760,772.2 |
| 769.5 PSU | 765,747.8 |
| 774.5 PSU | 770,723.5 |
| 779.5 PSU | 775,699.1 |
| 784.5 PSU | 780,674.7 |
| 789.5 PSU | 785,650.3 |
| 794.5 PSU | 790,625.9 |
779.5 PSU = 775,699.1 ppm
1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)