Containers must be designed and tested according to which codes?

The correct choice indicates that containers must be designed and tested according to ASME, API-ASME, and DOT codes. ASME, or the American Society of Mechanical Engineers, provides codes that establish the standards for the design and construction of pressure vessels, ensuring they can safely handle the pressures associated with propane. The API-ASME refers to standards that focus on quality and safety in the oil and natural gas industries, including aspects relevant to containers holding flammable gases like propane.

The DOT, or Department of Transportation, governs the safe transportation of hazardous materials, which includes propane. This agency sets regulations for the design and testing of containers used to transport propane to ensure they are safe and compliant with national safety standards.

Together, these organizations establish a comprehensive framework for ensuring that propane containers are not only built to handle the specific physical properties of propane but are also suitable for the environmental conditions and handling practices they may encounter. This framework is essential for maintaining safety and effectiveness in the use of propane as fuel.

In contrast, the other codes mentioned in the other choices focus on different aspects of safety and standards. For example, OSHA (Occupational Safety and Health Administration) and EPA (Environmental Protection Agency) govern workplace safety and environmental regulations respectively but are not specific to