What is the acceptable drop in psi during hose testing before it is considered a failure?

In hose testing, an acceptable drop in psi before a hose is considered to have failed is a critical parameter for ensuring the integrity and safety of firefighting equipment. A drop of 10 psi is the industry-standard threshold. This limit accounts for slight fluctuations or minor leaks that could occur during the testing process but still allows for hoses to pass if the loss is within this range.

If the pressure drops beyond 10 psi, it usually indicates a more significant issue with the hose, such as a leak or a failure in the material, which could compromise its effectiveness in a real-world situation. Thus, maintaining a maximum allowable drop of 10 psi is crucial to ensuring that the hoses remain functional and safe for use during firefighting operations.