What pressure is required on the manometer on containment?

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Study for the Colorado Air Monitoring Specialist Test. Dive into flashcards and multiple choice questions, each enriched with hints and explanations. Prepare confidently and excel on exam day!

Multiple Choice

What pressure is required on the manometer on containment?

Explanation:
Containment must be kept at a negative pressure relative to adjacent spaces, and a small differential is used to ensure air flows into the containment rather than out. The required minimum difference is 0.02 inches of water gauge, or more. Using the manometer, you’re checking that the containment area maintains at least this negative pressure; if the reading drops below 0.02" w.g., leaks or outward flow can occur, so you’d adjust the ventilation or seal any gaps. A reading of 0.02" w.g. or higher is sufficient, with 0.1" w.g. being stronger than needed but still acceptable.

Containment must be kept at a negative pressure relative to adjacent spaces, and a small differential is used to ensure air flows into the containment rather than out. The required minimum difference is 0.02 inches of water gauge, or more. Using the manometer, you’re checking that the containment area maintains at least this negative pressure; if the reading drops below 0.02" w.g., leaks or outward flow can occur, so you’d adjust the ventilation or seal any gaps. A reading of 0.02" w.g. or higher is sufficient, with 0.1" w.g. being stronger than needed but still acceptable.

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