NBBI Inservice Inspector (IS) study guide
NBBI Inservice Inspector (IS) · Work through your exam, one topic at a time.
The National Board Inservice Inspector (IS) credential is issued by The National Board of Boiler and Pressure Vessel Inspectors (NBBI), the organization whose site lists commissioned inspectors, pressure equipment inspectors, and inspection organizations among its credential and accreditation programs. The IS credential is aimed at inspectors who examine boilers and pressure vessels already in service rather than at the point of new construction, and who must judge whether that equipment remains safe to operate under the National Board Inspection Code (NBIC). The NBBI Inservice Inspector (IS) study guide has 4 sections and about 1,443 words.
01NBIC Part 1 - Installation of Boilers and Pressure Vessels
NBIC Part 1 governs installation: placing a new boiler or pressure vessel on its foundation, making the connections, mounting the appurtenances, and putting the item into service. It also applies when used equipment is relocated and reinstalled.
383 words, about 2 min02NBIC Part 2 - In-Service Inspection of Boilers and Pressure Vessels
Part 2 tells the inspector how to judge whether an in-service boiler or pressure vessel is safe to keep operating. It is not a repeat of the original construction inspection; the inspector is measuring change - corrosion, cracking, deformation - against the original code of construction and the item's service history.
354 words, about 2 min03NBIC Part 3 - Repairs and Alterations
A repair restores an item to a safe condition consistent with its original design. An alteration changes something fundamental: pressure-retaining capability, design temperature, minimum design metal temperature, service fluid, or an appurtenance that affects pressure retention.
350 words, about 2 min04NBIC Part 4 - Pressure Relief Devices
Part 4 covers pressure relief valves, pilot-operated valves, and rupture disk devices: installation, inspection, testing, setting, and repair. Manufacturers hold ASME V (boilers) or UV (vessels) stamps; repair organizations hold a National Board VR Certificate of Authorization.
356 words, about 2 min