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Water Quality Testing Services ...


Basic Potability Test (BPT)


This test checks for presence of bacteria, and indicators of contamination with putrefying material. Fluoride level is also checked. This is a cost-effective means to reassure yourself whether the water consumed by you, your family and colleagues is potable or not. But the test will not help much to investigate the source of contamination.

A. Sample Required: 

At least 500 ml of water collected in Water Collection Bottle - 1000 ml (B01L), 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.

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.

C. Report Details:

1. Most probably number of organisms (MPN) present per 100 ml of water.
    This is an indicator of bacterial contamination.

2. Physical indicators of contamination: pH, Color, Turbidity and Conductivity.

3. Chemical Indicators of Contamination : (a) Ammonia, (b) Nitrites, and (c) Nitrates.

4. Total Hardness which includes Calcium and Magnesium.

5. Confirmatory test for E.Coli which indicates fecal contamination. This test will be 
    done only if the MPN value is found unsatisfactory.

6. Interpretation, based on test results and sample collection record.


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