742.5 mg/L = 742.5 ppm
| mg/L | ppm |
|---|---|
| 727.5 mg/L | 727.5 |
| 732.5 mg/L | 732.5 |
| 737.5 mg/L | 737.5 |
| 742.5 | 742.5 |
| 747.5 mg/L | 747.5 |
| 752.5 mg/L | 752.5 |
| 757.5 mg/L | 757.5 |
742.5 mg/L = 742.5 ppm
1 ppm = 1 mg/L (aqueous, density ≈ 1 kg/L) · 1 ppb = 0.001 mg/L · 1% = 10,000 ppm