Water sampling for microbiological test

Is it necessary to exposure sampling points to flame before take the sample

No, it is not necessary. You must flush the sampling point for about 1 minute.

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Additionally IPA can be sprayed before sampling

No,a open the tap for few min. After rinse the bottle with water and collect the sample.

Hi guys,
sujatha was told correctly we are also following the same.

Before collecting the sample 2-3 minutes drain

it s based on your drain study.