745.5 mg/L = 745.5 ppm
| mg/L | ppm |
|---|---|
| 730.5 mg/L | 730.5 |
| 735.5 mg/L | 735.5 |
| 740.5 mg/L | 740.5 |
| 745.5 | 745.5 |
| 750.5 mg/L | 750.5 |
| 755.5 mg/L | 755.5 |
| 760.5 mg/L | 760.5 |
745.5 mg/L = 745.5 ppm
1 ppm = 1 mg/L (aqueous, density ≈ 1 kg/L) · 1 ppb = 0.001 mg/L · 1% = 10,000 ppm