Selecting a random sample from a set is simple. But what about selecting a fair random sample from a set of unknown or indeterminate size? That’s where reservoir sampling comes in, and [Sam R… ...

This article outlines the factors to take into account when choosing the best sample points for particle monitoring.

Whether or not there is a need to disinfect the sampling point; Location and timing of the sample—concerning normal operating conditions and control measures of the system.