ASME Q0003B 1998 Edition, July 1, 1998
SECTION III: DIVISION 1 SUBDIVISION NB - CLASS 1 COMPONENTS
Includes all amendments and changes through Supplement W00, July 2000
Additional Comments: CNCL S/S BY ASME S0003B * SEE ALSO IHS TA3
Published By:ASME International (ASME)
ASPECTS OF CONSTRUCTION COVERED BY THESE RULES
(a) Subsection NB contains rules for the material, design, fabrication, examination, testing, overpressure relief, marking, stamping, and preparation of reports by the Certificate Holder of items which are intended to conform to the requirements for Class 1 construction.
(b) The rules of Subsection NB cover the requirements for strength and pressure integrity of items, the failure of which would violate the pressure-retaining boundary. The rules cover initial construction requirements, but do not cover deterioration which may occur in service as a result of corrosion, radiation effects, or instability of material. NCA-1130 gives further limitations to the rules of this Subsection.