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MONTHYEARML14196A0432014-06-23023 June 2014 Requested Changes to Nbsr Technical Specifications Project stage: Request ML14202A3572014-07-23023 July 2014 National Institute of Standards and Technology Center for Neutron Research - Change of Technical Specification Amendment Request for the National Bureau of Standards Reactor Project stage: Other ML14241A3842014-08-20020 August 2014 U.S. Dept of Commerce, NIST, Statement of No Significant Hazards Resulting from License Amendment Request Dated June 23, 2014 (ML14196A043) Project stage: Request ML15022A1012015-01-30030 January 2015 National Institute of Standards and Technology - Request for Additional Information for the Review of Technical Specification Amendment Request Project stage: RAI ML15058A7142015-02-26026 February 2015 Response to NRC Request for Additional Information Project stage: Response to RAI ML15237A1462015-09-10010 September 2015 National Institute of Standards and Technology, Issuance of Amendment No. 10 to the Renewed Facility License No. TR-5 for the National Bureau of Standards Reactor Project stage: Approval 2014-08-20
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Category:Letter
MONTHYEARIR 05000184/20232012024-01-25025 January 2024 National Institute of Standards and Technology - U.S. Nuclear Regulatory Commission 1st and 2nd Quarter Supplemental Inspection Report 05000184/2023201 ML24023A6182024-01-23023 January 2024 Us Dept. of Commerce, National Institute of Standards & Technology - Nuclear Program Assessments Response and Leadership Accountability ML23257A1972023-12-26026 December 2023 Examination Results Letter No. 50-184/OL-23-02, National Institute of Standards and Technology ML23257A1982023-12-26026 December 2023 Examination Report No. 50-184/OL-23-02, National Institute of Standards and Technology ML23306A1642023-11-0202 November 2023 Examination Report Letter No. 50-182/OL-24-01, University of Missouri - Columbia ML23306A1652023-11-0202 November 2023 Examination Result Letter No. 50-184/OL-24-01, University of Missouri - Columbia ML23207A0402023-07-26026 July 2023 Us Dept. of Commerce, National Institute of Standards & Technology, Nuclear Safety Culture Assessment and Response ML23195A1042023-07-12012 July 2023 NIST Center for Neutron Research (Ncnr), Withdrawal of License Amendment Request of December 11, 2020 ML23104A3002023-04-10010 April 2023 U.S. Dept. of Commerce, National Institute of Standards & Technology (Nist), Transmitted Herewith Is Operations Report No. 74 for the Nbsr for the Cy 2022 ML23089A1132023-03-30030 March 2023 Us Dept. of Commerce - National Institute of Standards & Technology - Non-Availability of Fuel and Funding to Convert Nbsr from HEU to LEU in 2021 ML23086B3832023-03-27027 March 2023 Us Dept. of Commerce, National Institute of Standards & Technology (NIST) - Change of Ncnr Director ML23040A3372023-03-0909 March 2023 NIST Restart Authorization Letter ML23059A0502023-03-0707 March 2023 Examination Confirmation Letter No. 50-184/OL-23-02, National Institute of Standards and Technology IR 05000184/20222022023-03-0707 March 2023 National Institute of Standards and Technology U.S. Nuclear Regulatory Commission 4th 2022 Quarter Supplemental Inspection Report 05000184/2022202 ML23055A3002023-03-0303 March 2023 NIST License Amendment 15 - Core Alternative Reload Methodology Scheme ML23020A9112023-02-0101 February 2023 National Institute of Standards and Technology Issuance of Amendment No. 14 to Renewed Facility Operating License No. TR 5 ML23033A1152023-02-0101 February 2023 Us Dept. of Commerce, National Institute of Standards & Technology, License Amendment Request IR 05000184/20222032023-01-27027 January 2023 National Institute of Standards and Technology - U.S. Nuclear Regulatory Commission Security Inspection Report 05000184/2022203 ML22350A0652022-12-13013 December 2022 Us Dept. of Commerce, National Institute of Standards & Technology (Nist), License Amendment Request ML22322A2182022-11-28028 November 2022 National Institute of Standards and Technology - Report on the Regulatory Audit Re Restart Request Following Exceedance of Cladding Temperature Safety Limit ML22322A2112022-11-17017 November 2022 NIST Center for Neutron Research, License Amendment Request. Response to NRC Questions Regarding the Primary and Effluent Monitoring Systems ML22293B8082022-10-19019 October 2022 National Institute of Standards & Technology (NIST) - License Amendment Request ML22235A1172022-08-23023 August 2022 Us Dept of Commerce, National Institute of Standards & Technology, Transmittal of Draft of a Proposed Presentation of 02/03/2021, Nbsr Event for NRC Review ML22227A1502022-08-15015 August 2022 Us Dept of Commerce, National Institute of Standards & Technology (Nist), Request NRC Permission to Restart the Reactor Upon Completion of Listed Corrective Actions and Recovery Efforts ML22223A1462022-08-11011 August 2022 Docket Number 50-184 and the Nbsr Requalification Plan ML22206A2132022-08-0101 August 2022 Letter to National Institute of Standards and Technology, Center for Neutron Research - Confirmatory Order (EA-21-148) ML22206A0102022-08-0101 August 2022 U.S. Nuclear Regulatory Commission Supplemental Inspection Plan for National Institute of Standards and Technology ML22181A1282022-07-21021 July 2022 National Institute of Standards and Technology - Issuance of Amendment No. 13 to Renewed Facility Operating License No. TR-5 ML22187A1272022-06-29029 June 2022 Nbsr Restart Request ML22160A2852022-06-0808 June 2022 Nbsr License Amendment Request Supplement ML22122A0882022-04-27027 April 2022 Letter for T. H. Newton, NIST Center for Neutron Research, from J. S. Bowen, Nrc/Nrr/Danu, NRC Office of Investigations Report No. 1-2022-005 - Release of OI Synopsis ML22094A1082022-04-0404 April 2022 Transmittal of Operations Report No. 74 for the Nbsr for January 1, 2021 to December 31, 2021 ML22084A4082022-03-30030 March 2022 NIST - Non-availability of Fuel and Funding to Convert Nbsr from HEU to LEU in 2021 IR 05000184/20222012022-03-16016 March 2022 National Institute of Standards and Technology - Us Nuclear Regulatory Commission Special Inspection Report No 05000184-2022201 ML22012A0902022-01-11011 January 2022 Nbsr License Amendment Request, Revised No Significant Hazard Consideration Determination ML21349A3772022-01-0404 January 2022 December 7, 2021, Summary of Mtg with Nist to Discuss Proposed Technical Specification Changes at the National Bureau of Standards Reactor EPID L-2021-LLN-0000 ML21361A2472021-12-23023 December 2021 Nbsr License Amendment Request ML21355A2752021-12-21021 December 2021 Us Dept. of Commerce, National Institute of Standards & Technology, Nbsr Response to Request for Supplemental Information on Request to Restart the Nbsr ML21355A2742021-12-20020 December 2021 Us Dept. of Commerce, National Institute of Standards & Technology, Supplement to October 1, 2021 Report and Restart Request ML21340A0092021-12-0303 December 2021 Nbsr Response to Request for Supplemental Information on Request to Restart the Nbsr ML21294A2772021-11-18018 November 2021 National Institute of Standards and Technology - Supplemental Information Needed for the Request to Restart the National Bureau of Standards Reactor ML21294A3732021-10-21021 October 2021 National Institute of Standards and Technology - Submittal of Supplement to October 1, 2021 Report and Restart Request ML21288A5552021-10-15015 October 2021 Us Dept. of Commerce, National Institute of Standards and Technology (NIST) - Supplement to October 1, 2021 Report and Restart Request ML21274A0272021-10-0101 October 2021 Nbsr Report on February 3, 2021 Fuel Failure Event, Root Causes, Corrective Actions, and Restart Readiness ML21265A4352021-09-24024 September 2021 National Institute of Standards and Technology - Change of Facility Project Manager ML21153A4162021-06-15015 June 2021 National Institute of Standards and Technology - Acceptance of the Application for a License Amendment Request for License Amendment and Addjustment of Tritium Effluent Values for D2 Cold Source Under Title 10 of the Code of Federal Regulat ML21153A3962021-06-0202 June 2021 Us Dept of Commerce, National Institute of Standards & Technology (NIST) - Docket Number 50-184 and the Nbsr Requalification Plan ML21133A2662021-05-13013 May 2021 Us Dept. of Commerce, National Institute of Standards & Technology, Follow-Up to Event Report ML21130A6042021-04-30030 April 2021 Us Dept of Commerce, National Institute of Standard & Technology - Non-Availability of Fuel and Funding to Convert Nbsr from HEU to LEU in 2021 IR 05000184/20212012021-04-14014 April 2021 National Institute of Standards and Technology U.S. Nuclear Regulatory Commission Interim Special Inspection Report No. 05000184/2021201 2024-01-25
[Table view] Category:Request for Additional Information (RAI)
MONTHYEARML22342A5062022-12-0707 December 2022 NRR E-mail Capture - Request for Additional Information Regarding Nist'S Request to Operate with Debris in Primary Coolant ML22322A0872022-11-18018 November 2022 NRR E-mail Capture - Request for Additional Information Regarding Nist'S Proposed Revision to the Reactor Operator Requalification Plan ML21294A2772021-11-18018 November 2021 National Institute of Standards and Technology - Supplemental Information Needed for the Request to Restart the National Bureau of Standards Reactor ML17318A6952017-11-16016 November 2017 National Institute of Standards and Technology, Request for Additional Information of License Amendment Request for the Renewed Facility License No. TR-5 for the National Bureau of Standards Test Reactor (CAC No. 000955) ML17187B0122017-08-10010 August 2017 National Institute of Standards and Technology Request for Additional Information Preliminary Safety Analysis Report for the National Bureau of Standards Reactor ML16103A1402016-04-25025 April 2016 National Institute Of Standards And Technology - Preliminary Safety Analysis Report For The National Bureau Of Standards Reactor ML15022A1012015-01-30030 January 2015 National Institute of Standards and Technology - Request for Additional Information for the Review of Technical Specification Amendment Request ML0906100612009-03-0303 March 2009 National Institute of Standards and Technology Test Reactor - Request for Additional Information Advisory Committee on Reactor Safeguards Subcommittee Meeting Follow-up Items (Tac MD3410) ML0903707372009-02-18018 February 2009 National Institute of Standards and Technology Test Reactors - Request for Additional Information Operator Requalification Program ML0832307102008-11-19019 November 2008 Request for Additional Information Regarding Emergency Planning for the National Institute of Standards and Technology Test Reactor License Renewal ML0822802192008-08-25025 August 2008 Request for Additional Information Regarding Financial Qualifications and Decommissioning Funding for the National Institute of Standards and Technology Test Reactor Application for License Renewal ML0818302942008-07-0101 July 2008 Request for Additional Information Regarding the National Institute of Standards and Technology Test Reactor Application for License Renewal ML0718300212007-06-29029 June 2007 Request for Additional Information, Nist'S May 30, 2007 Response ML0704400432007-02-13013 February 2007 Request for Additional Information Regarding the National Institute of Standards and Technology Test Reactor Application for Re-Licensing ML0703200102007-02-0202 February 2007 National Institute of Standards and Technology Test Reactor (Nbsr) - Draft Request for Additional Information (Rai), Regarding Amendment Request for Re-Licensing ML0527104802005-10-0707 October 2005 RAI Letter - Security Measures - Richards 2022-12-07
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January 30, 2015 Dr. Robert Dimeo, Director NIST Center for Neutron Research National Institute of Standards and Technology U. S. Department of Commerce 100 Bureau Drive, Mail Stop 8561 Gaithersburg, MD 20899-8561
SUBJECT:
NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY - CHANGE OF TECHNICAL SPECIFICATION AMENDMENT REQUEST FOR THE NATIONAL BUREAU OF STANDARDS REACTOR (TAC NO. MF4420)
Dear Dr. Dimeo:
By letter dated June 23, 2014, National Institute of Standards and Technology (NIST) Center for Neutron Research (NCNR) Test Reactor (NBSR) submitted a license amendment request for NBSR. The proposed amendment request would change NBSRs technical specifications on the replacement of uninterruptable power supplies. During our review, questions have arisen for which we require additional information and clarification. Please provide responses to the enclosed request for additional information within 30 days of the date of this letter. In accordance with Title 10 of the Code of Federal Regulations (10 CFR), Section 50.30(b), you must execute your response in a signed original document under oath or affirmation. Your response must be submitted in accordance with 10 CFR 50.4, Written Communications.
Information included in your response that is considered security, sensitive, or proprietary, that you seek to have withheld from the public, must be marked in accordance with 10 CFR 2.390, Public inspections, exemptions, requests for withholding. Following receipt of the additional information, we will continue our evaluation of your license amendment request.
If you have any questions, please contact me at (301) 415-1404.
Sincerely,
/RA/
Xiaosong Yin, Project Manager Research and Test Reactors Licensing Branch Division of Policy and Rulemaking Office of Nuclear Reactor Regulation Docket No.: 50-184
Enclosure:
Request for Additional Information cc: See next page
ML15022A101 *Concurrence via e-mail NRR-058 OFFICE NRR/DPR/PRLB* NRR/DPR/PRLB* NRR/DPR/PRLB NRR/DPR/PRLB NAME XYin GLappert AAdams XYin DATE 1/ 22 /15 1/ 22 /15 1/ 29 /15 1/ 30 /15 National Institute of Standards and Technology Docket No. 50-184 cc:
Director, Department of State Planning 301 West Preston Street Baltimore, MD 21201 Director, Air & Radiation Management Adm.
Maryland Dept of the Environment 1800 Washington Blvd., Suite 710 Baltimore, MD 21230 Director, Department of Natural Resources Power Plant Siting Program Energy and Coastal Zone Administration Tawes State Office Building Annapolis, MD 21401 President Montgomery County Council 100 Maryland Avenue Rockville, MD 20850 Test, Research, and Training Reactor Newsletter University of Florida 202 Nuclear Sciences Center Gainesville, FL 32611
OFFICE OF NUCLEAR REACTOR REGULATION REQUEST FOR ADDITIONAL INFORMATION REGARDING LICENSE AMENDMENT FOR NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY CENTER FOR NEUTRON RESEARCH LICENSE NO. TR-5 DOCKET NO. 50-184 By letter dated June 23, 2014 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML14196A043), as supplemented by letter dated August 20, 2014, ADAMS Accession No. ML14241A384), the National Institute of Standards and Technology (NIST) Center for Neutron Research (NCNR) requested a revision to the Operating License for its Test Reactor (NBSR). The license amendment request (LAR) would change the NBSRs technical specifications in connection with the replacement of both Uninterruptable Power Supplies (UPS). The following questions were developed as a result of the staffs review of your LAR using NUREG-1537, Guidelines for Preparing and Reviewing Applications for the Licensing of Non-Power Reactors.
- 1. On page 1 of the LAR, you proposed to replace both NBSRs UPS that supply emergency alternating current (AC) electrical power to reactor critical loads.
NUREG-1537, Part 1, Section 8.2, Emergency Electrical Power Systems, states that the information contained in this section should be commensurate with required design basis developed in other chapters of the SAR.
a) Provide an overview of the systems that are affected by this LAR.
b) Provide a one-line diagram that shows the current and the proposed configurations of the UPS system including the station battery, direct current (DC) Distribution Panel, and Critical Power Panel.
- 2. On page 1 of the LAR, you stated the following:
Two redundant battery chargers will be purchased and installed to replace the function previously provided by the T-9 and T-10 UPS. The two replacement UPS are state-of-the-art systems with valve-regulated lead acid (VLRA) or sealed batteries rather than flooded or wet lead acid batteries. Each of the redundant UPS and batteries are capable of carrying the 20 kVA (design basis value for NBSR) of AC reactor critical power loads for 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> (assumes full 20 kVA loading) independently.
NUREG-1537, Part 1, Section 8.2, Emergency Electrical Power Systems, states that the information contained in this section should present a detailed functional description and circuit diagram.
a) Clarify if the battery charger and the VLRA battery are included in the UPS unit.
Also, provide a simplified block diagram that shows how the UPS, the VLRA battery, and the battery charger are interconnected.
ENCLOSURE
b) Provide manufacturer ratings and specifications of the battery chargers, UPS, and the VLRA batteries.
c) Provide a summary of the calculation performed to determine the adequacy of the new equipment (i.e. battery chargers, UPS, VRLA batteries) to supply the reactor critical loads.
- 3. The current Technical specification (TS) 4.6, Emergency Power System" requires testing the voltage and specific gravity of each cell of the station battery annually. The proposed revised TS 4.6 does not include these requirements for the VRLA battery. You clarified that the specific gravity of the VRLA battery cannot be measured because the electrolyte of the VRLA battery is immobilized in an absorbed glass matte (AGM).
However, you provided no justification for omitting testing of the VRLA battery cell voltage.
NUREG-1537, Part 1, Section 8.2, Emergency Electrical Power Systems, states that the information contained in this section should also identify the . . ., important design parameters, and surveillance and inspection functions that ensure operability of the emergency electric power systems . . .
Provide the TS requirement for testing of the VRLA battery cell voltage. If this testing is not required for the VLRA battery, provide justification for deviating from the requirement of the current TS 4.6.
- 4. On page 1 of the LAR, you stated: The NCNR [NIST Center for Neutron Research] is not replacing the existing flooded lead acid battery (Vented Lead Acid or VLA),
designated as the Station Battery in the Safety Analysis Report, because it is required to supply the various emergency loads that operate on 125 VDC.
NUREG-1537, Part 1, Section 8.2, Emergency Electrical Power Systems, states that the information contained in this section should be commensurate with required design basis developed in other chapters of the SAR.
a) Provide a copy of the sections of the above Safety Analysis Report (SAR) that are related to NIST emergency electrical power systems including the UPS, the battery chargers, and the station batteries. Also, provide a markup of the changes made to the affected sections as a result of this amendment request.
b) Clarify whether the VRLA batteries will supply the various emergency loads served by the Station Battery at any time.
- 5. On page 1 of the LAR, you stated that the VLRA maintenance guidance found in the Institute of Electrical and Electronics Engineers (IEEE) standard 1188-2005, IEEE Recommended Practice for Maintenance, Testing, and Replacement of Valve-Regulated Lead-Acid (VRLA) Batteries for Stationary Applications, will be used for the VLRA batteries. As described in the IEEE standard 1188-2005, a service test is a test of the batterys ability, as found, to satisfy the design requirements (battery duty cycle) of the DC system.
Provide an explanation why a service test was not included in TS 4.6.