For ASME containers, how many pressure relief devices should they have at a minimum?

ASME containers are designed to ensure safety when storing propane and other gases under pressure. The requirement for pressure relief devices is crucial because these devices prevent excessive pressure build-up within the container, which could lead to a dangerous situation, including explosions or ruptures.

The minimum requirement for ASME containers is to have one pressure relief device. This device is essential for the proper functioning of the container and must be capable of relieving pressure in case of temperature fluctuations or other conditions that lead to an increase in internal pressure. Having at least one pressure relief device ensures that there is a safety mechanism in place to alleviate excess pressure, maintaining the structural integrity of the container.

While more pressure relief devices can be beneficial for larger containers or specific applications, the minimum standard established ensures basic safety compliance. Therefore, "one" is the correct answer to reflect the foundational requirement for safety in the design of ASME containers.