768.5 mg/L = 768.5 ppm
| mg/L | ppm |
|---|---|
| 753.5 mg/L | 753.5 |
| 758.5 mg/L | 758.5 |
| 763.5 mg/L | 763.5 |
| 768.5 | 768.5 |
| 773.5 mg/L | 773.5 |
| 778.5 mg/L | 778.5 |
| 783.5 mg/L | 783.5 |
768.5 mg/L = 768.5 ppm
1 ppm = 1 mg/L (aqueous, density ≈ 1 kg/L) · 1 ppb = 0.001 mg/L · 1% = 10,000 ppm