MATERIAL BALANCE REPORT (MBR)
ANNEX IVSupplementary provisions
ANNEX IV MATERIAL BALANCE REPORT (MBR) Label/tag Content Comments # MBA Character (4) MBA code of reporting MBA 1 Report type Character (1) M for Material Balance Report 2 Report date DDMMYYYY Date on which the report was completed 3 Start report DDMMYYYY Starting date of MBR (date of last PIT +1 day) 4 End report DDMMYYYY End date of MBR (date of current PIT) 5 Report number Number (8) Sequential number, no gaps 6 Element category Character (1) Category of nuclear material 7 Line count Number (8) Total number of lines reported 8 Reporting person Character (30) Name of person responsible for report 9 IC code Character (2) Type of inventory change 10 Line number Number (8) Sequential number, no gaps 11 Element weight Number (24.3) Element weight 12 Isotope Character (1) G for U-235, K for U-233, J for a mixture of U-235 and U-233 13 Fissile weight Number (24.3) Weight of fissile isotope 14 Obligation Character (2) Safeguards obligation 15 Correction Character (1) D for deletions, A for additions forming part of a deletion/addition pair, L for late lines (stand-alone additions) 16 Previous report Number (8) Report number of line to be corrected 17 Previous line Number (8) Line number of line to be corrected 18 Comment Character (256) Operator comment 19 CRC Number (20) Hash code of line for quality control purposes 20 Previous CRC Number (20) Hash code of line to be corrected 21 Explanatory notes 1. MBA: Code of the reporting material balance area. This code is notified to the installation concerned by the Commission. 2. REPORT TYPE: M for material balance reports. 3. REPORT DATE: Date on which the report was completed. 4. START REPORT: Start date of MBR, date of the day immediately following the day of the previous physical inventory taking. 5. END REPORT: End date of MBR, date of current physical inventory taking. 6. REPORT NUMBER: Sequential number, no gaps. 7. ELEMENT CATEGORY: The following code for categories of nuclear material must be used: Category of nuclear material Code Plutonium P High enriched uranium (20 % enrichment and above) H Low enriched uranium (higher than natural but less than 20 % enrichment) L Natural uranium N Depleted uranium D Thorium T 8. LINE COUNT: Total number of lines reported. 9. REPORTING PERSON: Name of person responsible for report. 10. IC CODE: The different types of inventory information and of inventory change should be entered in the sequence indicated below. The following codes must be used: Keyword Code Explanation Beginning physical inventory PB Physical inventory at the beginning of the reporting period (must be equal to the physical inventory at the end of the previous reporting period). Inventory changes (only codes in the list below) For each type of inventory change, one consolidated line has to be entered for the entire reporting period (first increases, then decreases). Ending book inventory BA Book inventory at the end of the reporting period. It must be equal to the arithmetic sum of the MBR entries above. Ending physical inventory PE Physical inventory at the end of the reporting period. Material unaccounted for MF Material unaccounted for. Must be calculated as ‘ending physical inventory (PE)’ minus ‘ending book inventory (BA)’. For inventory changes, one of the following codes must be used: Keyword Code Explanation Receipt RD Receipt of nuclear material from a material balance area within the European Union. Import RF Import of nuclear material from a Third Country Receipt from non-safeguarded activity RN Receipt of nuclear material from a non-safeguarded activity (Article 34). Shipment SD Transfer of nuclear material to a material balance area within the European Union. Export SF Export of nuclear material to a Third Country. Shipment to non-safeguarded activity SN Transfer of nuclear material to a non-safeguarded activity (Article 34). Transfer to conditioned waste TC Nuclear material contained in waste that is measured or estimated on the basis of measurements, and which has been conditioned in such a way (e.g. in glass, cement, concrete or bitumen) that it is not suitable for further nuclear use. The quantity of nuclear material involved is to be subtracted from the inventory of the material balance area. Separate records must be kept for this type of material. Discards to the environment TE Nuclear material contained in waste that is measured or estimated on the basis of measurements, and which has been irrevocably discarded to the environment as the result of a planned discharge. The quantity of nuclear material involved is to be subtracted from the inventory of the material balance area. Transfer to retained waste TW Nuclear material generated from processing or from an operational accident contained in waste that is measured or estimated on the basis of measurements and which has been transferred to a specific location within the material balance area from which it could be retrieved. The quantity of nuclear material involved is to be subtracted from the inventory of the material balance area. Separate records must be kept for this type of material. Retransfer from conditioned waste FC Retransfer of conditioned waste to the inventory of the material balance area. This applies whenever conditioned waste undergoes processing. Retransfer from retained waste FW Retransfer of retained waste to the inventory of the material balance area. This applies whenever retained waste is retrieved from the specific location within the material balance area, either for any processing involving the separation of elements in the material balance area or for any shipment from the material balance area. Accidental loss LA Irretrievable and inadvertent loss of a quantity of nuclear material as the result of an operational accident. Use of this code in the MBR is only allowed if a special report was sent to the Commission when the inventory change occurred or became known. Accidental gain GA Nuclear material unexpectedly found, except when detected in the course of a physical inventory taking. Use of this code in the MBR is only allowed if a special report was sent to the Commission when the inventory change occurred or became known. Category change CE Accountancy transfer of a quantity of nuclear material from one category (Article 18) to another as a result of an enrichment process. Category change CB Accountancy transfer of a quantity of nuclear material from one category (Article 18) to another as a result of a blending operation. Category change CC Accountancy transfer of a quantity of nuclear material from one category (Article 18) to another for all types of category change not covered by codes CE and CB. Change in particular obligation BR Accountancy transfer of a quantity of nuclear material from one particular safeguards obligation to another (Article 17(1)), to balance the total uranium stock following a blending operation. Change in particular obligation PR Accountancy transfer of a quantity of nuclear material from one particular safeguards obligation to another (Article 17(1)), used when nuclear material enters or leaves an accountancy pool. Change in particular obligation SR Accountancy transfer of a quantity of nuclear material from one particular safeguards obligation to another (Article 17(1)), following an obligation exchange or a substitution. Change in particular obligation CR Accountancy transfer of a quantity of nuclear material from one particular safeguards obligation to another (Article 17(1)), for all cases not covered by codes BR, PR or SR. Nuclear production NP Increase in the quantity of nuclear material due to nuclear transformation. Nuclear loss NL Decrease in the quantity of nuclear material due to nuclear transformation. Shipper/receiver difference DI Shipper/receiver difference (See Article 2.19). New measurement NM Quantity of nuclear material, in one particular batch, accounted for in the nuclear material balance area, being the difference between a newly measured quantity and the quantity formerly accounted for, and which is neither a shipper/receiver difference nor a correction. Balance adjustment BJ Quantity of nuclear material accounted for in the material balance area, being the difference between the result of a physical inventory taken by the plant operator for his own purposes (without reporting a physical inventory listing to the Commission) and the book inventory established on the same date. Roundings RA Rounding adjustment to make the sum of the quantities reported in a given period coincide with the ending book inventory of the material balance area. Isotope adjustment R5 Adjustment to make the sum of the isotope quantities reported coincide with the ending book inventory for U-235 of the material balance area. Material production MP Quantity of nuclear material, obtained from substances originally not subject to safeguards, which has become subject to safeguards because its concentration now exceeds the minimum levels. Termination of use TU Quantity of nuclear material considered as irrecoverable for practical or economic reasons which is: (i) incorporated in end products used for non-nuclear purposes; or (ii) contained in waste in very low concentrations measured or estimated on the basis of measurements, even if these materials are not discarded to the environment. The quantity of nuclear material involved is to be subtracted from the inventory of the material balance area. 11. LINE NUMBER: Sequential number starting with 1, no gaps. 12. ELEMENT WEIGHT: The weight of the element category referred to in field 7 must be reported. All weights must be reported in grams. The decimal digits appearing in the accounting lines can be reported up to a maximum of three decimal places. 13. ISOTOPE: This code indicates the kind of fissile isotopes involved and should be used when the weight of fissile isotopes is reported. Use the code G for U-235, K for U-233, and J for a mixture of U-235 and U-233. 14. FISSILE WEIGHT: Unless otherwise stated in the particular safeguard provisions, the weight of fissile isotopes must only be reported for enriched uranium and category changes involving enriched uranium. All weights must be reported in grams. The decimal digits appearing in the accounting lines can be reported up to a maximum of three decimal places. 15. OBLIGATION: Indication of the particular safeguards obligation assumed by the Community under an Agreement concluded with a third country or an international organisation, to which the material is subject (Article 17). The Commission will communicate the appropriate codes to the installations. 16. CORRECTION: Corrections have to be made by deleting the wrong line(s) and adding the correct one(s), where appropriate. The following codes must be used: Code Explanation D Deletion. The line to be deleted must be identified by indicating in field 17 the report number (6), in field 18 the line number (11) and in field 21 the CRC (20) which were declared for the original line. Other fields need not be reported. A Addition (forming part of a deletion/addition pair). The correct line must be reported with all data fields, including the ‘previous report’ field (17) and the ‘previous line’ field (18). The ‘previous line’ field (18) must repeat the line number (11) of the line being replaced by the deletion/addition pair. L Late line (stand-alone addition). The late line to be added must be reported with all data fields, including the ‘previous report’ field (17). The ‘previous report’ field (17) must contain the report number (6) of the report in which the late line should have been included. 17. PREVIOUS REPORT: Indicate the report number (6) of the line to be corrected. 18. PREVIOUS LINE: For deletions, or additions forming part of a deletion/addition pair, indicate the line number (11) of the line to be corrected. 19. COMMENT: Free-text comment field for short comments by operator (replaces separate concise note). 20. CRC: Hash code of line for quality control purposes. The Commission will inform the operator of the algorithm to be used. 21. PREVIOUS CRC: Hash code of the line to be corrected. GENERAL REMARKS CONCERNING THE COMPLETION OF THE REPORTS General remarks 2, 3, 4, 5 and 6 at the end of Annex III apply mutatis mutandis .