How long must a timed pressure drop test be conducted according to RV standards?

The correct duration for conducting a timed pressure drop test according to RV standards is indeed 3 minutes. This duration has been established to ensure that the test accurately assesses the integrity of the RV's holding tank or pressure systems.

During this 3-minute interval, the test allows for sufficient time to observe any pressure changes that might indicate leaks or issues with the integrity of the system. This thoroughness helps in maintaining safety standards and ensuring that the RV is fit for use, providing both functionality and reliability to users.

Shortening the duration of the test could lead to inaccurate readings, potentially overlooking minor leaks that could develop into more significant issues. A 3-minute test strikes a balance between efficiency and accuracy, providing a comprehensive assessment without unnecessary prolongation. Therefore, the specification of 3 minutes is critical in standard operating procedures for RV maintenance and safety checks.