Water sampling relatd

Some laboratories provide water sampling containers which contain a small tablet or powder. This substance is sodium thiosulfate which is used to neutralize any residual chlorine present in the water sample. That’s I know but which guidelines are telling this one pls give me the details.

There are two methods used for sampling water: isokinetic and non-isokinetic . Isokinetic methods includes taking samples across a cross section of water to see what the water looks like at different depths. Non-isokinetic methods takes random points in the water and sample in those locations.

There are two methods used for sampling water: isokinetic and non-isokinetic . Isokinetic methods includes taking samples across a cross section of water to see what the water looks like at different depths. Non-isokinetic methods takes random points in the water and sample in those locations.