NBIC NB23-1 2015 provides Part 1, Installation, of the 2015 National Board Inspection Code. This PDF code document covers installation requirements and guidance for power boilers, steam heating boilers, hot-water heating boilers, hot-water supply boilers, potable water heaters, pressure vessels, piping, and specialized supplements.
The document is intended for inspectors, engineers, installers, jurisdictional authorities, facility operators, and compliance professionals working with boiler and pressure vessel installations. It includes structured sections on certification, inspection, equipment room requirements, source and discharge requirements, controls and gages, pressure relief devices, testing, acceptance, and installation reporting.
Supplemental material addresses topics such as Yankee dryers, safety valves on the low-pressure side of steam pressure-reducing valves, liquid carbon dioxide storage vessels, biomass-fired boilers, and thermal fluid heaters.
Application Scope: Applies to installation practices and inspection-related requirements for boilers, pressure vessels, piping, and associated systems covered by Part 1 of the 2015 National Board Inspection Code.
