What do you call a Pressure Vessel according to ASME?

According to the American Society of Mechanical Engineers (ASME), a pressure vessel is defined as a container designed to hold gases or liquids at a pressure substantially different from the ambient pressure. These vessels are subject to specific design, construction, and inspection standards outlined in the ASME Boiler and Pressure Vessel Code (BPVC). Pressure vessels are typically classified based on their operating pressure, temperature, and the nature of the contained substance. Compliance with ASME standards ensures safety and reliability in their operation.