Which statement about code stamping is true?

Which statement about code stamping is true?

• A. After welding and heat treatment
• B. Before any testing
• C. During fabrication
• D. After inspection and hydrotest approval

Answer: (D)

Code stamping is the official confirmation that a pressure vessel meets the ASME Code and is ready for service. The stamp is applied only after the vessel has undergone all required fabrication steps, welding, any necessary heat treatment, and the mandatory nondestructive examinations, and after the hydrostatic or pneumatic tests have been performed and approved. In other words, stamping is the final verification that all inspections and tests are complete and satisfactory. That’s why the true statement is that stamping occurs after inspection and hydrotest approval. The other options place stamping too early in the process or during fabrication, which would not reflect the stamp’s purpose as a final conformity verification.

Code stamping is the official confirmation that a pressure vessel meets the ASME Code and is ready for service. The stamp is applied only after the vessel has undergone all required fabrication steps, welding, any necessary heat treatment, and the mandatory nondestructive examinations, and after the hydrostatic or pneumatic tests have been performed and approved. In other words, stamping is the final verification that all inspections and tests are complete and satisfactory. That’s why the true statement is that stamping occurs after inspection and hydrotest approval. The other options place stamping too early in the process or during fabrication, which would not reflect the stamp’s purpose as a final conformity verification.