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| IHS
Mission & Goals: |
Groom
Skills,
Gather Evidence and
Generate Knowledge for people's health.
To Improve the
Efficacy,
Quality & Equity
of Health Systems.
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Water
Quality Testing Services ...
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Bacteriological
Analysis (BCT) | |
| Basic
potability or Complete potability tests will establish
bacteriological and chemical characteristic of water
from a source. Usually the chemical characteristics of
a source does not change so much. Hence, there is no
need to repeat the chemical characteristics at short
intervals. This test is same asthe bacteriological
component of the basic potability test. This test is
recommended to enable you to monitor bacteriological
contamination of water at frequent intervals for a
source for which basic potability test has been done
at least once. The test helps monitor contamination
due to seasonal changes. And
also to assess the quality of treatment. | |
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| A.
Sample Required: | |
| 100
ml of sample water is collected in 125 ml (B125) water
sample collection bottle or
equivalent, delivered at laboratory preferably within
6 hrs, but not later than 24 hrs
from time of collection. Keep away from sunlight.
Avoid exposure to excessive heat. Keep
in refrigerator, if delayed delivery is anticipated. | |
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| B.
Test Duration: | |
| If
sample is found satisfactory, then report will be
available after 48 hours. If
sample is found to have bacteria then further test
will be made to look for
indication of fecal contamination. This test will take
another 48 hours. So report will
be available after 96 hours. | |
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| C.
Report Details: | |
| 1.
Most probably number of organisms (MPN) present per
100 ml of water.This is an indicator of bacterial
contamination.
2. Confirmatory test for E.Coli
which indicates fecal contamination. This test will be done only if the MPN
value is found unsatisfactory.
3. Interpretation, based on test
results and sample collection record. | |
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