What is the minimum holding time for a hose under hydrostatic test conditions?

The minimum holding time for a hose under hydrostatic test conditions is set at 1 minute. This duration is crucial because it allows sufficient time for the test to observe the hose for any leaks or failures that may not be immediately apparent. During the test, the hose is pressurized with water, and maintaining that pressure for at least 1 minute helps to ensure that any weaknesses in the material can be identified. This careful testing process is essential for safety, ensuring that hoses meet required standards before being put into service, thereby reducing the risk of failure during firefighting operations. Holding the hose under pressure for a shorter duration, such as 30 seconds, may not provide enough time to reveal potential issues, while too long a period might not be necessary based on the established standards. Ensuring compliance with the 1-minute minimum allows for effective evaluation of the hose’s integrity.