943 PSU = 938,401.8 ppm
| PSU | ppm |
|---|---|
| 928 PSU | 923,475 |
| 933 PSU | 928,450.6 |
| 938 PSU | 933,426.2 |
| 943 PSU | 938,401.8 |
| 948 PSU | 943,377.5 |
| 953 PSU | 948,353.1 |
| 958 PSU | 953,328.7 |
943 PSU = 938,401.8 ppm
1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)