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To qualify for Class C category the TC should be 5000MPN/l or less (IS-
2296-1982)
As per Indian Standards (IS- 2296-1982)
| Class |
Desired TC range |
| A |
50 or less |
| B |
500 or less |
| C |
5000 or less |
| D |
NA |
| E |
NA |
| Below E |
Not Meeting A, B, C, D & E Criteria |
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Source: Central Pollution Control Board
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