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Question: How often should critical and regular test sites be swabbed?
Answer:
Critical (high-risk) test sites should be swabbed on a daily basis, after each cleaning or anytime prior to start-up. If a failure is generated, immediate corrective action should be taken and the area re-swabbed until a passing result can be obtained. Corrective action steps may include and additional water rinsing of the entire area or a complete re-cleaning if necessary. Regular (lower-risk) control points may not need to be tested as frequently.
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