What is another name for a proof test?

A proof test is a specific examination method used to validate the integrity and performance of equipment, particularly pressure vessels and piping systems. It usually involves subjecting the component to a predetermined, non-operational pressure to ensure it can handle expected service conditions without leaking or failing.

The term "Hydrostatic deformation test" aligns well with the concept of a proof test, as this method often incorporates the use of water (hydrostatic) to apply pressure (deformation) to the vessel being tested. This procedure helps to confirm not only that the vessel can withstand the pressure but also that it does not exhibit failures in material integrity, such as leaks or structural weaknesses.

In contrast, dynamic load tests evaluate how materials respond to moving or changing loads, fatigue tests determine a material's endurance against repeated loading, and yield strength tests measure the maximum stress that can be applied before a material begins to deform permanently. While these tests all assess material properties and integrity, they focus on different aspects than a proof test, which is primarily concerned with the safe operational limits of pressure-containing systems.