5,945 ppm = 5.974 PSU
| ppm | PSU |
|---|---|
| 5,930 ppm | 5.959 |
| 5,935 ppm | 5.964 |
| 5,940 ppm | 5.969 |
| 5,945 ppm | 5.974 |
| 5,950 ppm | 5.979 |
| 5,955 ppm | 5.984 |
| 5,960 ppm | 5.989 |
5945 ppm = 5.974 PSU
1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)