728.5 mg/L = 728.5 ppm
| mg/L | ppm |
|---|---|
| 713.5 mg/L | 713.5 |
| 718.5 mg/L | 718.5 |
| 723.5 mg/L | 723.5 |
| 728.5 | 728.5 |
| 733.5 mg/L | 733.5 |
| 738.5 mg/L | 738.5 |
| 743.5 mg/L | 743.5 |
728.5 mg/L = 728.5 ppm
1 ppm = 1 mg/L (aqueous, density ≈ 1 kg/L) · 1 ppb = 0.001 mg/L · 1% = 10,000 ppm