How long should demand system and air pressure tests last during inspection?

The duration of demand system and air pressure tests is critical to ensure that all components operate correctly and safely. A testing duration of 10 minutes is standard because it provides sufficient time to assess the system's integrity and performance without being excessively lengthy. This period allows for a comprehensive check of any potential leaks or failures that might not be immediately apparent.

During this time, inspectors can monitor system responses to pressure changes and detect any irregularities, ensuring compliance with safety standards. Shorter durations might not provide enough data for an accurate assessment, while longer durations could extend inspection times unnecessarily, potentially affecting workflow and operational efficiency. Therefore, a 10-minute test strikes an optimal balance for thoroughness and practicality.