774.5 mg/L = 774.5 ppm
| mg/L | ppm |
|---|---|
| 759.5 mg/L | 759.5 |
| 764.5 mg/L | 764.5 |
| 769.5 mg/L | 769.5 |
| 774.5 | 774.5 |
| 779.5 mg/L | 779.5 |
| 784.5 mg/L | 784.5 |
| 789.5 mg/L | 789.5 |
774.5 mg/L = 774.5 ppm
1 ppm = 1 mg/L (aqueous, density ≈ 1 kg/L) · 1 ppb = 0.001 mg/L · 1% = 10,000 ppm