NBIC NB 23 Part 4

NBIC NB 23 Part 4 – Pressure Relief Devices, 2023 Edition

This Part provides guidelines and requirements for the installation, in-service inspection and testing, and repairs of pressure relief devices.

CONSTRUCTION STANDARDS FOR PRESSURE RELIEF DEVICES

• When the standard governing the original construction is the ASME Code, installation and repairs to pressure relief devices shall conform to the ASME Code section and edition most applicable to the work planned.
• If the pressure relief device was not constructed to the ASME Code, then installation, inspection and repair shall wherever possible reference the original code of construction most applicable to the work.
• If the pressure relief device was not constructed to any recognized construction code or standard, then installation, inspection, and repair shall reference a construction standard or specification most applica-ble to the work.
• Where this is not possible or practicable, it is permissible to use other codes, standards, or specifica-tions, including the ASME Code, provided there is concurrence of the Inspector (if applicable) and the Jurisdiction where the pressure relief device is installed.

The NBIC recognizes four important areas of post-construction activities where information, understanding, and following specific requirements will promote public and personal safety. These areas include:

• NBIC NB 23 Part 1 – Installation
• NBIC NB 23 Part 2 – Inspection
• NBIC NB 23 Part 3 – Repairs and Alterations
• NBIC NB 23 Part 4 – Pressure Relief Devices