What is the minimum rated working pressure that container appurtenances must have?

The correct answer, which indicates that the minimum rated working pressure for container appurtenances must be 250 PSIG, is based on safety standards established for the design and construction of pressure vessels. These appurtenances are safety and operational devices attached to LP gas containers, such as pressure relief valves, which are critical for preventing hazardous conditions during gas storage and handling.

Having a minimum rated working pressure of 250 PSIG ensures that these components can safely operate under typical conditions, accommodating the pressures that may be encountered without risk of failure. This rating also complies with industry and regulatory standards, which mandate robust safety measures to protect against potential overpressure situations.

Ensuring that these components exceed the pressures typically present within the systems is essential for maintaining the integrity of gas handling systems and ensuring the safety of both users and the surrounding environment.