604.5 mg/L = 604.5 ppm
| mg/L | ppm |
|---|---|
| 589.5 mg/L | 589.5 |
| 594.5 mg/L | 594.5 |
| 599.5 mg/L | 599.5 |
| 604.5 | 604.5 |
| 609.5 mg/L | 609.5 |
| 614.5 mg/L | 614.5 |
| 619.5 mg/L | 619.5 |
604.5 mg/L = 604.5 ppm
1 ppm = 1 mg/L (aqueous, density ≈ 1 kg/L) · 1 ppb = 0.001 mg/L · 1% = 10,000 ppm