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    CSA N294-2009 Decommissioning of facilities containing nuclear substances (First Edition Update No 1 August 2014).pdf

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    CSA N294-2009 Decommissioning of facilities containing nuclear substances (First Edition Update No 1 August 2014).pdf

    1、N294-09Decommissioning of facilities containing nuclear substancesLegal Notice for StandardsCanadian Standards Association (CSA) standards are developed through a consensus standards development process approved by the Standards Council of Canada. This process brings together volunteers representing

    2、 varied viewpoints and interests to achieve consensus and develop a standard. Although CSA administers the process and establishes rules to promote fairness in achieving consensus, it does not independently test, evaluate, or verify the content of standards.Disclaimer and exclusion of liabilityThis

    3、document is provided without any representations, warranties, or conditions of any kind, express or implied, including, without limitation, implied warranties or conditions concerning this documents fitness for a particular purpose or use, its merchantability, or its non-infringement of any third pa

    4、rtys intellectual property rights. CSA does not warrant the accuracy, completeness, or currency of any of the information published in this document. CSA makes no representations or warranties regarding this documents compliance with any applicable statute, rule, or regulation. IN NO EVENT SHALL CSA

    5、, ITS VOLUNTEERS, MEMBERS, SUBSIDIARIES, OR AFFILIATED COMPANIES, OR THEIR EMPLOYEES, DIRECTORS, OR OFFICERS, BE LIABLE FOR ANY DIRECT, INDIRECT, OR INCIDENTAL DAMAGES, INJURY, LOSS, COSTS, OR EXPENSES, HOWSOEVER CAUSED, INCLUDING BUT NOT LIMITED TO SPECIAL OR CONSEQUENTIAL DAMAGES, LOST REVENUE, BU

    6、SINESS INTERRUPTION, LOST OR DAMAGED DATA, OR ANY OTHER COMMERCIAL OR ECONOMIC LOSS, WHETHER BASED IN CONTRACT, TORT (INCLUDING NEGLIGENCE), OR ANY OTHER THEORY OF LIABILITY, ARISING OUT OF OR RESULTING FROM ACCESS TO OR POSSESSION OR USE OF THIS DOCUMENT, EVEN IF CSA HAS BEEN ADVISED OF THE POSSIBI

    7、LITY OF SUCH DAMAGES, INJURY, LOSS, COSTS, OR EXPENSES.In publishing and making this document available, CSA is not undertaking to render professional or other services for or on behalf of any person or entity or to perform any duty owed by any person or entity to another person or entity. The infor

    8、mation in this document is directed to those who have the appropriate degree of experience to use and apply its contents, and CSA accepts no responsibility whatsoever arising in any way from any and all use of or reliance on the information contained in this document. CSA is a private not-for-profit

    9、 company that publishes voluntary standards and related documents. CSA has no power, nor does it undertake, to enforce compliance with the contents of the standards or other documents it publishes. Intellectual property rights and ownershipAs between CSA and the users of this document (whether it be

    10、 in printed or electronic form), CSA is the owner, or the authorized licensee, of all works contained herein that are protected by copyright, all trade-marks (except as otherwise noted to the contrary), and all inventions and trade secrets that may be contained in this document, whether or not such

    11、inventions and trade secrets are protected by patents and applications for patents. Without limitation, the unauthorized use, modification, copying, or disclosure of this document may violate laws that protect CSAs and/or others intellectual property and may give rise to a right in CSA and/or others

    12、 to seek legal redress for such use, modification, copying, or disclosure. To the extent permitted by licence or by law, CSA reserves all intellectual property rights in this document.Patent rightsAttention is drawn to the possibility that some of the elements of this standard may be the subject of

    13、patent rights. CSA shall not be held responsible for identifying any or all such patent rights. Users of this standard are expressly advised that determination of the validity of any such patent rights is entirely their own responsibility.Authorized use of this documentThis document is being provide

    14、d by CSA for informational and non-commercial use only. The user of this document is authorized to do only the following:If this document is in electronic form:.load this document onto a computer for the sole purpose of reviewing it;.search and browse this document; and.print this document if it is

    15、in PDF format. Limited copies of this document in print or paper form may be distributed only to persons who are authorized by CSA to have such copies, and only if this Legal Notice appears on each such copy.In addition, users may not and may not permit others to.alter this document in any way or re

    16、move this Legal Notice from the attached standard;.sell this document without authorization from CSA; or.make an electronic copy of this document.If you do not agree with any of the terms and conditions contained in this Legal Notice, you may not load or use this document or make any copies of the c

    17、ontents hereof, and if you do make such copies, you are required to destroy them immediately. Use of this document constitutes your acceptance of the terms and conditions of this Legal Notice.Update No. 1N294-09August 2014Note: For information about the Standards Update Service, go to shop.csa.ca or

    18、 e-mail techsupportcsagroup.org.Title: Decommissioning of facilities containing nuclear substances originally published July 2009The following revisions have been formally approved and are marked by the symbol delta () in the margin on the attached replacement pages:Revised Preface, Clauses 1, 2, 5,

    19、 7.8.2, E.2.3.1, and I.3.2 and Annex HNew Clause 0, Figure 1, and Annex KDeleted None Update your copy by inserting these revised pages.Keep the pages you remove for reference. 2014 CSA Group Decommissioning of facilities containing nuclear substancesAugust 2014PrefaceThis is the first edition of CS

    20、A N294, Decommissioning of facilities containing nuclear substances.This Standard was developed in response to a need for direction on decommissioning consistent with Canadian and international recommendations. It incorporates current best practices and existing regulatory requirements. This Standar

    21、d also draws on the decommissioning experience of the Canadian nuclear industry.The CSA N-Series Standards provide an interlinked set of requirements for the management of nuclear facilities and activities. CSA N286 provides overall direction to management to develop and implement sound management p

    22、ractices and controls, while the other CSA Group Nuclear Standards provide specific technical requirements and guidance that support the management system. This Standard works in harmony with CSA N286 and does not duplicate the generic requirements of CSA N286, however it may provide more specific d

    23、irection for those requirements. Users of this Standard are reminded that additional and site-specific requirements might be specified by federal, provincial, or municipal authorities. This Standard should not be considered as a replacement for the requirements contained in the Nuclear Safety and Co

    24、ntrol Act and its Regulations or in other legislation, standards, or guides. This Standard was prepared by the Technical Committee on the Decommissioning of Nuclear Facilities, under the jurisdiction of the Strategic Steering Committee on Nuclear Standards, and has been formally approved by the Tech

    25、nical Committee.Notes: (1) Use of the singular does not exclude the plural (and vice versa) when the sense allows.(2) Although the intended primary application of this Standard is stated in its Scope, it is important to note that it remains the responsibility of the users of the Standard to judge it

    26、s suitability for their particular purpose.(3) This Standard was developed by consensus, which is defined by CSA Policy governing standardization Code of good practice for standardization as “substantial agreement. Consensus implies much more than a simple majority, but not necessarily unanimity”. I

    27、t is consistent with this definition that a member may be included in the Technical Committee list and yet not be in full agreement with all clauses of this Standard.(4) To submit a request for interpretation of this Standard, please send the following information to inquiriescsagroup.org and includ

    28、e “Request for interpretation” in the subject line:(a) define the problem, making reference to the specific clause, and, where appropriate, include an illustrative sketch;(b) provide an explanation of circumstances surrounding the actual field condition; and(c) where possible, phrase the request in

    29、such a way that a specific “yes” or “no” answer will address the issue.Committee interpretations are processed in accordance with the CSA Directives and guidelines governing standardization and are available on the Current Standards Activities page at standardsactivities.csa.ca.(5) This Standard is

    30、subject to review five years from the date of publication. Suggestions for its improvement will be referred to the appropriate committee. To submit a proposal for change, please send the following information to inquiriescsagroup.org and include “Proposal for change” in the subject line:(a) Standard

    31、 designation (number);(b) relevant clause, table, and/or figure number;(c) wording of the proposed change; and(d) rationale for the change.vii(Replaces p. vii, July 2009) 2014 CSA Group Decommissioning of facilities containing nuclear substancesAugust 2014N294-09Decommissioning of facilities contain

    32、ing nuclear substances0 IntroductionNote: The information in Clause 0 is informative.0.1 GeneralThis Standard is one of the CSA N-Series of Standards, a set of Standards which provide an interlinked set of requirements for the management of nuclear facilities. This Standard provides direction on def

    33、ining, planning and executing decommissioning work, and supports the requirements identified in CSA N286, Management system requirements for nuclear facilities.0.2 BackgroundThis Standard was developed to consolidate and incorporate into one document, decommissioning principles, Canadian and interna

    34、tional decommissioning experience, international guidance, and regulatory expectations that could be applied to the decommissioning of all facilities and sites where nuclear substances were used or stored.The Standard is consistent with and supplements current Canadian policy and regulatory guidance

    35、 as follows:CNSC Regulatory Policy P-290, Managing Radioactive Waste (July 2004);CNSC Regulatory Guide G-219, Decommissioning Planning for Licensed Activities (June 2000); andCNSC Regulatory Guide G-206, Financial Guarantees for the Decommissioning of Licensed Activities (June 2000).0.3 ApplicationT

    36、he application of this Standard is intended for all nuclear decommissioning activities in Canada and is mandatory when referenced as a requirement in a CNSC licence or via another regulatory requirement. The Standard is intended to be appropriate for use in decommissioning facilities and sites under

    37、 CNSC licences, military facilities regulated by the Director Nuclear Safety, and non-licensed facilities and sites containing nuclear substances.The main body of this Standard provides the requirements for the management of decommissioning; the Annexes have been developed to provide information rel

    38、ated to specific aspects of decommissioning.0.4 Interface with other CSA Group StandardsThis Standard has been developed to capture nuclear decommissioning requirements, but recognizes that the process of decommissioning is complex and interface with other CSA N-Series Standards will be required. It

    39、 is recommended that the user of this Standard consider reviewing the following CSA N-Series Standards to determine if the requirements contained within these Standards affect and influence their decommissioning:N285 series on pressure retaining components and systems;N286, Management system require

    40、ments for nuclear facilities;N287 series on structural requirements;N288 series on environmental management for nuclear facilities; N292 series on radioactive waste management; N293, Fire protection for nuclear power plants; andN393, Fire protection for facilities that process, handle, or store nucl

    41、ear substances.1(Replaces p. 1, July 2009)N294-09 2014 CSA GroupAugust 20141 Scope1.1 This Standard applies to the decommissioning of licensed facilities and other locations where nuclear substances are managed, possessed, or stored. Notes: (1) Users are responsible for determining the extent to whi

    42、ch this Standard applies to a given facility or location and for consulting the associated regulatory requirements.(2) Annexes E, F, G, and K contain recommended approaches for the decommissioning of mine waste rock and mill tailings, complex sites, small facilities other than Class I or II, and hig

    43、h energy reactor facilities, respectively.1.2 This Standard does not apply to the decommissioning of facilities or equipment involving only(a) naturally occurring radioactive material (NORM);(b) technologically enhanced, naturally occurring radioactive material (TENORM); or(c) radiation-emitting dev

    44、ices, including those consumer and medical devices regulated under the Radiation Emitting Devices Act and similar industrial radiation-emitting devices regulated by the provinces.Note: This Standard provides guidance that might be useful for facilities covering the materials and equipment specified

    45、in this Clause.1.3 In CSA Standards, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; “should” is used to express a recommendation or that which is advised but not required; “may” is used to express an option or tha

    46、t which is permissible within the limits of the standard; and “can” is used to express possibility or capability. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative ma

    47、terial. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.2 Reference publicationsThis Standard refers to the following publications, and w

    48、here such reference is made, it shall be to the edition listed below, including all amendments published thereto.CSA (Canadian Standards Association)N285.0-08/N285.6 Series-08General requirements for pressure-retaining systems and components in CANDU nuclear power plants/Material Standards for react

    49、or components for CANDU nuclear power plantsN286-05Management system requirements for nuclear power plantsCAN/CSA-N288.4-M90 (R2008)Guidelines for radiological monitoring of the environmentN292.3-08Management of low- and intermediate-level radioactive wasteN293-07 (Consolidated)Fire protection for CANDU nuclear power plantsCAN/CSA-Z731-03 (R2009)Emergency preparedness and response(Replaces p. 2, July 2009)2 2014 CSA Group Decommissioning of facilities containing nuclear substancesAugust 2014AACE International (Association for the Advancement of Cost Engineering)Requir


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