Sodium hazard classes based on USSL classification
| Sodium Hazard Class . | SAR in Equivalents per mole . | Remarks on Quality . | Pre-monsoon Samples . | Post-monsoon samples . |
|---|---|---|---|---|
| S1 | 10 | Excellent | – | – |
| S2 | 10–18 | Good | 0.29–16.80 | 0.85–12.46 |
| S3 | 18–26 | Doubtful | ||
| S4 | >26 | Unsuitable | – | – |
| Sodium Hazard Class . | SAR in Equivalents per mole . | Remarks on Quality . | Pre-monsoon Samples . | Post-monsoon samples . |
|---|---|---|---|---|
| S1 | 10 | Excellent | – | – |
| S2 | 10–18 | Good | 0.29–16.80 | 0.85–12.46 |
| S3 | 18–26 | Doubtful | ||
| S4 | >26 | Unsuitable | – | – |