523.5 mg/L = 523.5 ppm
| mg/L | ppm |
|---|---|
| 508.5 mg/L | 508.5 |
| 513.5 mg/L | 513.5 |
| 518.5 mg/L | 518.5 |
| 523.5 | 523.5 |
| 528.5 mg/L | 528.5 |
| 533.5 mg/L | 533.5 |
| 538.5 mg/L | 538.5 |
523.5 mg/L = 523.5 ppm
1 ppm = 1 mg/L (aqueous, density ≈ 1 kg/L) · 1 ppb = 0.001 mg/L · 1% = 10,000 ppm