525.5 g/kg = 528.075 PSU
| g/kg | PSU |
|---|---|
| 510.5 g/kg | 513.001 |
| 515.5 g/kg | 518.026 |
| 520.5 g/kg | 523.05 |
| 525.5 | 528.075 |
| 530.5 g/kg | 533.099 |
| 535.5 g/kg | 538.124 |
| 540.5 g/kg | 543.148 |
525.5 g/kg = 528.075 PSU
1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)