347.5 mg/L = 347.5 ppm
| mg/L | ppm |
|---|---|
| 332.5 mg/L | 332.5 |
| 337.5 mg/L | 337.5 |
| 342.5 mg/L | 342.5 |
| 347.5 | 347.5 |
| 352.5 mg/L | 352.5 |
| 357.5 mg/L | 357.5 |
| 362.5 mg/L | 362.5 |
347.5 mg/L = 347.5 ppm
1 ppm = 1 mg/L (aqueous, density ≈ 1 kg/L) · 1 ppb = 0.001 mg/L · 1% = 10,000 ppm