split sample results

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magandangbutiki
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split sample results

Post by magandangbutiki » Thu Jul 25, 2013 6:34 am

hello guys !! what cn you say about this:
water samples was drawn in a faucet of a potable water purifying system (purified water). 5 split samples (100mL each) for coliform analysis.
the results ; 1 out of 5 samples failed the test, while the other 4 samples passed the coliform test,
whats the explanation for this? thnks!

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