Each of these procedures yields a result based on the formation of microbial colonies on the surface of a collection medium (usually agar), but the specific instruments and techniques differ between ...

The benefits of zero tolerance as a test criterion have been oversold. A critical examination of zero tolerance reveals that many of the supposed benefits are not attainable. More important, ...

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Understanding the differences between convenience, target, and self-selected samples. Representative samples and sampling are addressed multiple times in the cGMPs. For example, in Part 21 of the Code ...