According to the WHO , what is the minimum bacteriological standard for drinking water –
Correct Answer: All the samples should not contain coliform organisms
Description: Must not detect E. coli or thermotolerant bacteria in any 100 ml sample. Total coliform bacteria should be nil in any 100 ml sample Park's Textbook of Preventive and Social Medicine, 25th edition, Page No. 782
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Social & Preventive Medicine
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