In general means that the sample collected in one place and time, and then analyzed as a separate sample. sample this is a source of water, a representative of the store and the only time only if it appears that there is source of water quality.At the time, and the point may be considered as a representative sample, horror sources of water at the time and place of storage in this case for example separate examples can be used as a single source of water, such as a representative of soil water tap water pond depthThe samples separately in the appropriate range, and it will help to know the analysis of the extent and the time period of time such as a change in the sample depends on the frequency of the changes, so it may vary from 5.Up to 1 hours, or more than this in the case where the quality of water sources will vary based on the distance instead of the variable according to the time you use the store (Set) of an example of a good spot, with a specific time.An example of this is stored in a representative sample of all
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