What document covers the National Board Inspection code?

• A. ASME B31.3
• B. NB-23
• C. API RP 2201
• D. ASME PCC-2

Answer: (B)

The National Board Inspection Code (NBIC) is specifically covered by the NB-23 document. The NBIC provides requirements for the inspection and maintenance of facilities and pressure-relieving devices, ensuring safety and compliance with established standards. This document is vital for inspectors and organizations seeking to maintain quality assurance and safety measures within the industry.

The other options relate to different standards or codes in the realm of pressure vessels, piping, and equipment but do not specifically address the National Board Inspection Code. For instance, ASME B31.3 pertains to process piping, API RP 2201 deals with the operation and maintenance of pressure-relief valves, and ASME PCC-2 focuses on the repair of pressure vessels and piping systems. Therefore, while these documents are important in their own right, they do not specifically cover the NBIC like the NB-23 document does.