Document: NRC Regulatory Guide
Document ID: 5ec01b96-5209-446f-95b3-7342d73ba086
Document Type: regulatory_guide
Title: Design, Inspection, and Testing Criteria for Air Filtration and Adsorption Units of Post-Accident Engineered-Safety-Feature Atmosphere Cleanup Systems in Light-Water-Cooled Nuclear Power Plants + HISTORY - HISTORY 12/2011 – DG-1274 , Proposed Revision 4 10/2000 – DG-1102 , Proposed Revision 3 (Rev. 4)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1124/ML11244A045.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.52
CFR Part: 
CFR Title: 

Content:
t Design Criteria and Qualification Testing Components of ESF atmosphere cleanup systems should be designed, constructed, and tested in accordance with Division II of ASME AG-1-2009 with addenda (Ref. 13), as modified and supplemented by the following:2 a. Moisture separators should be designed, constructed, and tested in accordance with Section FA of ASME AG-1-2009 with addenda. b. Air heaters should be designed, constructed, and tested in accordance with Section CA of ASME AG-1-2009 with addenda. c. Materials used in the prefilters should withstand the radiation levels and environmental conditions prevalent during the postulated DBA. Prefilters should be designed, constructed, and tested in accordance with Section FB or FJ of ASME AG-1-2009 with addenda. d. HEPA filters used in ESF atmosphere cleanup systems should be designed, constructed, and tested in accordance with Section FC of ASME AG-1-2009 with addenda. HEPA filters should be compatible with the chemical composition and physical conditions of the air stream. Each HEPA filter should be tested for penetration of a challenge aerosol, such as dioctyl phthalate or 4 centistoke polyalpha olephin (PAO), in accordance with section TA of ASME AG-1-2009 with addenda. 2 The pertinent quality assurance requirements of Appendix B, “Quality Assurance Criteria for Nuclear Power Plants and Fuel Reprocessing Plants,” to 10 CFR Part 50 apply to all activities affecting the safety-related functions of all components of the ESF atmosphere cleanup system. DG-1274, Page 11 Testing and documentation should be in accordance with a quality assurance program consistent with Appendix B to 10 CFR Part 50. e. The HEPA filter and Type II adsorber cell mounting frames should be constructed and designed in accordance with Section FG of ASME AG-1-2009 with addenda. f. Filter and adsorber banks should be arranged in accordance with the recommendations of Section HA of ASME AG-1-2009 with addenda. g. System filter housings, including