Procedural Control
Definition
Material or a blank used to assess contamination or process behaviour. Controls examine relevant background from devices, reagents or processing. Their selection should match the contamination pathways and stages being assessed.
- Context
- Contamination controls
For example, a process control can help assess a preparation stage without reproducing every possible contamination event before the specimen reached the laboratory.
A clean control does not rule out every earlier contamination event. A positive control finding needs investigation rather than an automatic conclusion about every exhibit.
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