What type of discharge devices should be used to avoid developing internal pressure on the container?

The correct answer focuses on the importance of using non-pressurizing discharge devices for preventing internal pressure build-up inside a container. Non-pressurizing devices are designed to release contents without adding additional pressure, thereby maintaining the integrity of the container and reducing the risk of rupture or failure due to excessive internal pressure.

Using self-regulating devices may create fluctuations in internal pressure based on varying conditions, which could potentially lead to pressure-related issues. Manual and electric devices often operate under different principles and may not specifically address the concern of pressure build-up. In contrast, non-pressurizing discharge devices ensure that the release of contents occurs safely and without the risk of contributing to increased internal pressure, making them the optimal choice in this scenario.