923 PSU = 918,499.4 mg/L
| PSU | mg/L |
|---|---|
| 908 PSU | 903,572.5 |
| 913 PSU | 908,548.1 |
| 918 PSU | 913,523.7 |
| 923 PSU | 918,499.4 |
| 928 PSU | 923,475 |
| 933 PSU | 928,450.6 |
| 938 PSU | 933,426.2 |
923 PSU = 918,499.4 mg/L
1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)