777.5 mg/L = 777.5 ppm
| mg/L | ppm |
|---|---|
| 762.5 mg/L | 762.5 |
| 767.5 mg/L | 767.5 |
| 772.5 mg/L | 772.5 |
| 777.5 | 777.5 |
| 782.5 mg/L | 782.5 |
| 787.5 mg/L | 787.5 |
| 792.5 mg/L | 792.5 |
777.5 mg/L = 777.5 ppm
1 ppm = 1 mg/L (aqueous, density ≈ 1 kg/L) · 1 ppb = 0.001 mg/L · 1% = 10,000 ppm