771.5 mg/L = 771.5 ppm
| mg/L | ppm |
|---|---|
| 756.5 mg/L | 756.5 |
| 761.5 mg/L | 761.5 |
| 766.5 mg/L | 766.5 |
| 771.5 | 771.5 |
| 776.5 mg/L | 776.5 |
| 781.5 mg/L | 781.5 |
| 786.5 mg/L | 786.5 |
771.5 mg/L = 771.5 ppm
1 ppm = 1 mg/L (aqueous, density ≈ 1 kg/L) · 1 ppb = 0.001 mg/L · 1% = 10,000 ppm