RG 5.49-75 相关标准章节.docxVIP

Publication Date: 3/1/75  Pages: 4  Date Entered: 2/23/84  Title: INTERNAL TRANSFERS OF SPECIAL NUCLEAR MATERIAL  March 1975  U.S. NUCLEAR REGULATORY COMMISSION  REGULATORY GUIDE  OFFICE OF STANDARDS DEVELOPMENT  REGULATORY GUIDE 5.49  INTERNAL TRANSFERS OF SPECIAL NUCLEAR MATERIAL A. INTRODUCTION  Paragraph 70.51(e) of 10 CFR Part 70 requires, with certain  exceptions stated in the rule, that each licensee authorized to possess  more than one effective kilogram of special nuclear material (SNM)  maintain certain procedures. These procedures are to include:  (1) Records of the quantities of SNM added to or removed from  the process;  (2) Documentation of all transfers of SNM between  material-balance areas to show the identity and quantity of SNM  transferred;  (3) Requirements for authorized signatures on each document used  to record the transfer of SNM between material-balance areas; and  (4) Means for control of and accounting for internal transfer  documents.  Paragraph 70.58(e) requires licensees to establish, maintain, and  follow a system for measuring the SNM transferred between  material-balance areas and item-control areas.  Paragraph 70.58(f) requires that licensees have a program that  evaluates and controls the quality of their measurement system.  Additionally, all licensees authorized to possess SNM must comply  with paragraph 70.51(b) of 10 CFR Part 70. That rule requires licensees  to keep records showing, among other things, the inventory of all SNM in  their possession and its location.  This guide sets forth acceptable methods for controlling and  documenting transfers of SNM within a plant site in order to meet the  requirements listed above. B. DISCUSSION  To help determine when and where losses of SNM have occurred  within a plant, each licensee subject to the requirements of paragraph  70.58(d)