815 g/kg = 818.993 PSU
| g/kg | PSU |
|---|---|
| 800 g/kg | 803.92 |
| 805 g/kg | 808.944 |
| 810 g/kg | 813.969 |
| 815 g/kg | 818.993 |
| 820 g/kg | 824.018 |
| 825 g/kg | 829.042 |
| 830 g/kg | 834.067 |
815 g/kg = 818.993 PSU
1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)