Document: NRC Regulatory Guide
Document ID: 4056a39f-0c52-46d1-b8d4-097c0827389f
Document Type: regulatory_guide
Title: Spray Pond Piping Made from Fiberglass-Reinforced Thermosetting Resin (Rev. 2)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML0037/ML003740253.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.72
CFR Part: 
CFR Title: 

Content:
ued, the acceptability of future minor revisions to Code Case N-155 (1792) will be noted in Regulatory Guide 1.84, "Design and Fabrication Code Case Acceptability--ASME Section III Division I1." Major revisions to the Code Case will, however, result in a revision -to this guide -(1.72). Filament-wound struc tures have mechanical properties superior to fiberglass-filled laminates, and they are con sidered more desirable when intended for safety-related pressure components. The Code Case obtains an allowable design stress from the hydrostatic design basis (HDB) strength as derived from either Procedure A Copies Jay be obtained from the American Society of Mechan ticl Inghieers. United Ingieerling Canter, 345 Seat 47th Street. New Terk. New Yorkt 10017. Connffao awloid be se nt fto Ssem" of Me CommisIonS U.S. Nucea noguitor Commission Washingon D.C. *W Attntion: Ockstlng anO Ma e gildas ua ied in 1ft Ioowg ten bod tlona: 1. ftwr Reactors S. PoducM 2. Iosearch wed Tat Rescto 7. Trsrporatn 3. -uek and Maltis Fact Wes .c Heath 4. gnvoniwntdl and SRing S. Antitrust ind Financial Review S. tairla end Pi P cton 10. Gen•eal. Request for singe coples of lasued Suides lutch nay be uspaoduedl for f placement en en automat dalbutlon Ist fo g o f at u.gd In specfick dvimsn etmiod be wadle hInwm an7le UMSNuclarReulaimy Comission. Wash n. D.C. 0 . Aato Okectr. DivIon of Techicsl Iformation and Document Contol. (cyclic) or Procedure B (static) of Specifica tion ASTM D-2992, "Standard Method for Ob taining Hydrostatic Design Basis for Reinforced Thermosetting Resin Pipe and Fittings Proce dures." 2 These procedures are intended to be used for general applications for Class 3 piping. For safety-related systems such as spray pond piping, a design factor of 6 is desired. Under some conditions, the qualifica tion procedures may not result in. a design factor of 6, and it is therefore necessary to perform an additional short-time cyclic and burst test to ensure that the desired design