Which code mandates that boilers and pressure vessels be stamped with a specific symbol?

The correct answer pertains to the ASME Code, which establishes standards for the construction and design of pressure vessels and boilers. Specifically, the ASME Boiler and Pressure Vessel Code (BPVC) includes guidelines regarding the certification and stamping of boilers and pressure vessels with specific symbols. This stamping certifies that the equipment has been manufactured in compliance with the stringent safety and design criteria set forth in the code, ensuring that these vessels are safe for operation.

The ASME Code is widely recognized in many jurisdictions and is often required for equipment to be operated legally. The proper symbol stamped on a vessel indicates it has passed inspections and met all required standards for strength, durability, and safety.

While the CSA B51 is relevant to boilers and pressure vessels in Canada, and does provide direction on their design and construction, it is not the code that dictates the specific symbol stamping requirement—that responsibility lies with the ASME Code. The IEC Standard and ISO Certification do not specifically pertain to the stamping of boilers and pressure vessels, as they cover broader electrical and quality management standards, respectively.