Parameters | WHO Standard | Weight (wi) | Relative Weight (Wi) |
pH | 8.5 | 4 | 0.117647059 |
TDS | 1000 | 5 | 0.147058824 |
| 50 | 5 | 0.147058824 |
Ca2+ | 200 | 3 | 0.088235294 |
Mg2+ | 50 | 3 | 0.088235294 |
Na+ | 200 | 3 | 0.088235294 |
K+ | 30 | 2 | 0.058823529 |
| 280 | 1 | 0.029411765 |
Cl− | 250 | 3 | 0.088235294 |
| 250 | 5 | 0.147058824 |
Total |
| ∑wi = 34 | ∑Wi = 1 |