This method describes how to correctly collect a sample of water.
Water intended for use as an ingredient in the production of beer (brewing liquor) or other foods
Collecting samples correctly is a prerequisite for obtaining flawless analytical results. The sample collection method must be adapted to align with the purpose of the analysis method. As a rule, separate samples are taken for chemical and microbiological analyses, since different equipment and containers are required for the collection and treatment of samples.
In principle, sample collection methods are distinguished as follows:
Random samples collected for analysis identify possible contamination or can be collected for purposes of orientation prior to more extensive sampling.
Both intermittent (discontinuous) sample collection (according to certain time intervals, volumes or flow rates) and continuous sampling, which allows for constant monitoring of flowing water for compliance with quality standards, are possible. Samples taken continuously can be mixed to create composite samples and provide mean data.
A series of samples (taken at different depths or over a given area to perform profile tests) are collected for analysis in the process of testing standing water.