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ASME B31.3-2016 Chapter IV Standards for Piping Components 326 DIMENSIONS AND RATINGS OF requirements of applicable standards listed in COMPONENTS Table 326.1 or Appendix A. 326.1 Dimensional Requirements 326.2 Ratings of Components 326.1.1 Listed Piping Components. Dimensional 326.2.1 Listed Components. The pressure— standards' for piping components are listed in temperature ratings of components listed in Table 326.1 Table 326.1. Dimensional requirements contained in are accepted for pressure design in accordance with specifications listed in Appendix A shall also be consid- para. 303. ered requirements of this Code. 326.2.2 Unlisted Components. The pressure- 326.1.2 Unlisted Piping Components. Piping com- temperature ratings of unlisted piping components shall ponents not listed in Table 326.1 or Appendix A shall conform to the applicable provisions of para. 304. meet the pressure design requirements described in 326.3 Reference Documents para. 302.2.3 and the mechanical strength requirements The documents listed in Table 326.1 contain references described in para. 302.5. to codes, standards, and specifications not listed in 326.1.3 Threads. The dimensions of piping connec- Table 326.1.Such unlisted codes,standards,and specifi- tion threads not otherwise covered by a governing com- cations shall be used only in the context of the listed ponent standard or specification shall conform to the documents in which they appear. The design,materials,fabrication,assembly,examina- tion,inspection, and testing requirements of this Code lIt is not practical to refer to a specific edition of each standard are not applicable to components manufactured in accor- throughoutthe Code text.Instead,the approved edition references, along with the names and address of sponsoring organizations, dance with the documents listed in Table 326.1, unless are shown in Appendix E. specifically stated in this Code,or the listed document.