《BS-ISO-14943-2004.pdf》由会员分享，可在线阅读，更多相关《BS-ISO-14943-2004.pdf（12页珍藏版）》请在三一文库上搜索。
1、BRITISH STANDARD BS ISO 14943:2004 Nuclear fuel technology Administrative criteria related to nuclear criticality safety ICS 27.120.20 ? Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 11:45:14 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 14943:2004 This British Standard was published un
2、der the authority of the Standards Policy and Strategy Committee on 20 October 2004 BSI 20 October 2004 ISBN 0 580 44626 3 National foreword This British Standard reproduces verbatim ISO 14943:2004 and implements it as the UK national standard. The UK participation in its preparation was entrusted t
3、o Technical Committee NCE/9, Nuclear fuel cycle technology, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this docume
4、nt may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. U
5、sers are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for chan
6、ge, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to iv, pages 1 to 5 and a back cover. The BSI copyright notice di
7、splayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 11:45:14 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Reference number ISO 14943:2004(E) OSI 4002 INTERNATIONAL STANDAR
8、D ISO 14943 First edition 2004-10-01 Nuclear fuel technology Administrative criteria related to nuclear criticality safety Technologie du combustible nuclaire Critres administratifs concernant la sret-criticit nuclaire BS ISO 14943:2004 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 11:45:14
9、 GMT+00:00 2006, Uncontrolled Copy, (c) BSI IS:34941 O4002(E) DPlcsid Fremia ihTs PDF file may ctnoian emdebt dedyfepcaes. In ccaocnadrw eith Aebods licensilop gnic,y this file mairp eb ynted iv roweb detu slahl ton ide ebtlnu deess the typefaces whice era hml era deddebicsnede to i dnanstlaled t no
10、eh computfrep reormign tide ehtin.g In wodlnidaot gnhis file, trapise atpecc tiereht nser ehnopsiiblity fo not infriigngn Aebods licensilop gnic.y ehT ISO tneClar Secrteiraat caceptl on siibality in this .aera Ai ebods a tredamafo kr Aebod SystemI sncotaropr.de teDails fo teh softwacudorp erts sut d
11、eo crtaee this PDF file cna f ebi dnuon tlareneG eh Info leratit evo the file; tP ehDc-Frtaeion marapterew setpo erimizde for irpnti.gn Evyre caer neeb sah taken to sneeru that the file is suitlbae fosu re yb ISO memdob rebeis. In tlnu ehikletneve y ttah lborp aem leratit gno it is f,dnuo plsaee inf
12、orm ttneC ehlar Secrteiraat ta the serddaig sleb nevwo. ISO 4002 All irthgs erse.devr lnUeto sswrehise specified, on trap fo this lbupictaion maeb y cudorperro de tuilizi den yna form ro na ybm ynae,s lecetrinoc ro mecinahcal, inclidung tohpcoiypodna gn micrfoilm, wittuoh repmissii non writign from
13、ietI rehSa Ot tsserdda eh ebolw or ISOs memreb i ydobn the cnuotrfo y ttseuqer ehe.r ISO cirypothg fofice saCe tsopale 65 eneG 1121-HC 02 av leT. 4 + 10 947 22 1 11 xaF0 947 22 14 + 9 74 E-mail coirypthgiso.o gr We bwww.is.o gro Pulbisdehi n Switlrez dna ii ISO 4002 Allr ithgsr esedevr BS ISO 14943:
14、2004 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 11:45:14 GMT+00:00 2006, Uncontrolled Copy, (c) BSI IS:34941 O4002(E) I SO 4002 All irthgs ersedevr iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bod
15、ies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and
16、 non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives,
17、Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies cast
18、ing a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 14943 was prepared by Technical Committee ISO/TC 85, Nuclear energy, Subcommittee SC
19、5, Nuclear fuel technology. BS ISO 14943:2004 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 11:45:14 GMT+00:00 2006, Uncontrolled Copy, (c) BSI IS:34941 O4002(E) iv I SO 4002 All irthgs ersedevr Introduction An effective nuclear criticality-safety programme includes cooperation among manage
20、ment, supervision, and the nuclear criticality-safety staff and, for each employee, relies upon conformance with operating procedures. Although the extent and complexity of safety-related activities may vary greatly with the size and type of operation with fissile material, certain safety elements a
21、re common. This International Standard represents a codification of such elements related to nuclear criticality safety. General guidance for nuclear criticality safety may be found in ISO 1709. BS ISO 14943:2004 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 11:45:14 GMT+00:00 2006, Uncontr
22、olled Copy, (c) BSI INTENRATIONAL TSANDADR IS:34941 O4002(E) I SO 4002 All irthgs ersedevr 1 Nuclear fuel technology Administrative criteria related to nuclear criticality safety 1 Scope This International Standard provides criteria for the administration of nuclear criticality-safety-related activi
23、ties for operations which take place outside of reactors and for which there exists a potential for criticality accidents. The responsibilities of management, supervision, and the nuclear criticality-safety staff are addressed. The Objectives and characteristics of operating and emergency procedures
24、 are included in this International Standard. 2 Responsibilities 2.1 Management Management shall formulate a nuclear criticality-safety policy and make it known to all employees involved in operations with fissile material. Management shall accept overall responsibility for nuclear criticality safet
25、y of operations. Management shall assign responsibility and delegate commensurate authority to implement the established policy. Responsibility for nuclear criticality safety should be assigned in a manner that is no less rigorous than for other safety disciplines. Management shall provide nuclear c
26、riticality-safety staff, familiar with the physics of nuclear criticality and with associated safety practices, to furnish technical guidance appropriate to the scope of operations. This function should, to the extent practicable, be administratively independent of operations. Management shall estab
27、lish a means for monitoring the nuclear criticality-safety programme. Management shall establish a defined process and an equipment change control procedure. Management shall be involved in periodic reviews of their nuclear criticality-safety programme effectiveness. Management shall establish opera
28、tion procedures and their modification. 2.2 Operations supervisors Each supervisor shall accept responsibility for the safety of operations under his/her control. Each supervisor shall be aware of the controlled parameters and associated limits relevant to operations under his/her control. Additiona
29、lly, they shall have a working knowledge of relevant basic criticality methods of control (e.g. mass, concentration, shape, etc.). Training and assistance with regard to these basic criticality methods of control should be obtained from the nuclear criticality-safety staff. BS ISO 14943:2004 License
30、d Copy: sheffieldun sheffieldun, na, Sun Nov 26 11:45:14 GMT+00:00 2006, Uncontrolled Copy, (c) BSI IS:34941 O4002(E) 2 I SO 4002 All irthgs ersedevr Each supervisor shall provide training and shall require that the personnel under his/her supervision have an understanding of procedures and safety c
31、onsiderations such that they may be expected to perform their functions without undue risk. Records of training activities and verification of personnel understanding should be maintained. Each supervisor shall develop, or participate in the development of, written procedures applicable to the opera
32、tions under their control. Maintenance of these procedures to reflect changes in operations shall be a continuing supervisory responsibility. Each supervisor, with the help of the nuclear criticality-safety staff as needed, shall verify compliance with nuclear criticality-safety specifications for n
33、ew or modified processes or equipment before their application. Verification may be based on inspection reports or other features of the quality-control system. Each supervisor shall require conformance with good safety practices, including unambiguous identification of fissile materials and good ho
34、usekeeping. 2.3 Nuclear criticality-safety staff The nuclear criticality-safety staff shall provide and accept responsibility for documented nuclear criticaity- safety guidance for the design of equipment and processes and for the development of operating procedures. The staff shall maintain familia
35、rity with current developments in nuclear criticality-safety standards and guides. Knowledge of current nuclear criticality information and computational codes should be maintained. The staff should consult knowledgeable individuals to obtain technical assistance as needed. The staff shall maintain
36、familiarity with all fissionable material operations within their area of responsiblity for nuclear criticality safety. The staff shall assist supervision, on request, in training personnel. The staff shall conduct, or participate in, audits of nuclear criticality-safety practices and compliance wit
37、h procedures as directed by management. The staff, with supervision, shall conduct or participate in the investigation of procedural violations and other deficiencies for possible improvement of safety practices and procedural requirements as directed by management. The nuclear criticality-safety st
38、aff shall, upon request, participate in the verification of compliance with nuclear criticality-safety specifications for intended new or modified processes or equipment. 3 Operating procedures The purpose of written operating procedures is to facilitate and to document the safe and efficient conduc
39、t of the operations. Procedures should be organized for convenient use by operators and be conveniently available. They should be free of extraneous information not relevant to safe and efficient conduct of the operation. Procedures shall include those controls and limits that are significant to the
40、 nuclear criticality safety of the operation and identify them as such. Supplementing and revising procedures, as improvements become desirable, shall be facilitated. Currently used procedures shall be reviewed periodically by supervision. Intended new or revised procedures impacting nuclear critica
41、lity safety shall be reviewed by the nuclear criticality-safety staff and supervision and shall be approved by management. BS ISO 14943:2004 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 11:45:14 GMT+00:00 2006, Uncontrolled Copy, (c) BSI IS:34941 O4002(E) I SO 4002 All irthgs ersedevr 3 Pr
42、ocedures should be supplemented by posted nuclear criticality-safety limits or limits incorporated in operating check lists, flow sheets, or automated control systems. Deviations from operating procedures and unforeseen alterations in process conditions that affect nuclear criticality safety shall b
43、e reported to supervision and management, investigated promptly, corrected as appropriate, and documented. Action shall be taken to prevent a recurrence. Operations shall be reviewed frequently (at least annually) to ascertain that procedures are being followed and that process conditions have not b
44、een altered so as to affect the nuclear criticality-safety evaluation. 4 Process evaluation for nuclear criticality safety Before starting a new operation with fissile material or before an existing operation is changed, it shall be determined and documented that the entire process will be subcritic
45、al under both normal and credible abnormal conditions. The nuclear criticality-safety evaluation shall determine and explicitly identify the controlled parameters and their associated limits upon which nuclear criticality safety depends. The effect of changes in these parameters, or in the condition
46、s to which they apply, shall be evaluated and documented. The nuclear criticality-safety evaluation shall be documented with sufficient detail, clarity, and lack of ambiguity to allow an independent judgment of results. All equipment, procedures, data and methods of evaluation which are important to
47、 a nuclear criticality-safety evaluation shall be valid for their stated purpose. Before starting a new operation with fissile material or before an existing operation is changed, there shall be an independent review that confirms the adequacy of the nuclear criticality-safety evaluation. 5 Material
48、s control The movement of fissile materials shall be controlled as specified in approved procedures. The transport of fissile materials within the public domain shall comply with appropriate national and international regulations. Appropriate material identification shall be maintained. Personnel ac
49、cess to areas where fissile material is handled, processed, or stored shall be controlled. Control of spacing, mass, density and geometry of fissile material shall be maintained to assure subcriticality under all normal and credible abnormal conditions as stated in the nuclear criticality-safety evaluation documentation. Appropriate arrangements shall be made between the consignor and consignee before fissile material is dispatched from an establishment. Any discrepancie