欢迎来到麦多课文档分享! | 帮助中心 海量文档,免费浏览,给你所需,享你所想!
麦多课文档分享
全部分类
  • 标准规范>
  • 教学课件>
  • 考试资料>
  • 办公文档>
  • 学术论文>
  • 行业资料>
  • 易语言源码>
  • ImageVerifierCode 换一换
    首页 麦多课文档分享 > 资源分类 > PDF文档下载
    分享到微信 分享到微博 分享到QQ空间

    EN ISO 15646-2016 en Re-sintering test for UO2 (U Gd)O2 and (U Pu)O2 pellets《再烧结试验二氧化铀( U GD)和O2(铀 钚)的颗粒》.pdf

    • 资源ID:725677       资源大小:815.42KB        全文页数:16页
    • 资源格式: PDF        下载积分:10000积分
    快捷下载 游客一键下载
    账号登录下载
    微信登录下载
    二维码
    微信扫一扫登录
    下载资源需要10000积分(如需开发票,请勿充值!)
    邮箱/手机:
    温馨提示:
    如需开发票,请勿充值!快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。
    如需开发票,请勿充值!如填写123,账号就是123,密码也是123。
    支付方式: 支付宝扫码支付    微信扫码支付   
    验证码:   换一换

    加入VIP,交流精品资源
     
    账号:
    密码:
    验证码:   换一换
      忘记密码?
        
    友情提示
    2、PDF文件下载后,可能会被浏览器默认打开,此种情况可以点击浏览器菜单,保存网页到桌面,就可以正常下载了。
    3、本站不支持迅雷下载,请使用电脑自带的IE浏览器,或者360浏览器、谷歌浏览器下载即可。
    4、本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰。
    5、试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。

    EN ISO 15646-2016 en Re-sintering test for UO2 (U Gd)O2 and (U Pu)O2 pellets《再烧结试验二氧化铀( U GD)和O2(铀 钚)的颗粒》.pdf

    1、BSI Standards PublicationBS ISO 15646:2014Re-sintering test for UO2, (U,Gd)O2and (U,Pu)O2pelletsBS EN ISO 15646:2016(ISO 15646:2014)BS EN ISO 15646:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 15646:2016. It is identical to ISO 15646:2014. It superse

    2、des BS ISO 15646:2014 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee NCE/9, Nuclear fuel cycle technology.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include al

    3、l the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016. Published by BSI Standards Limited 2016ISBN 978 0 580 90935 1ICS 27.120.30Compliance with a British Standard cannot confer immunity from legal obligations.This British

    4、 Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2014.Amendments/corrigenda issued since publicationDate Text affected31 May 2016 This corrigendum renumbers BS ISO 15646:2014 as BS EN ISO 15646:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM

    5、 EN ISO 15646 April 2016 ICS 27.120.30 English Version Re-sintering test for UO2, (U,Gd)O2 and (U,Pu)O2 pellets (ISO 15646:2014) Test de refrittage pour pastilles UO2, (U,Gd)O2 et (U,Pu)O2 (ISO 15646:2014) Nachsintertest fr UO2-, (U,Gd)O2- und (U,Pu)O2-Pellets (ISO 15646:2014) This European Standard

    6、 was approved by CEN on 21 February 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning su

    7、ch national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its ow

    8、n language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,

    9、Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORM

    10、UNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 15646:2016 EBS ISO 15646:2014ISO 15646:2014(E) ISO 2014 All rights reserved iiiContents PageForeword iv1

    11、Scope . 12 Brief description of procedure 13 Incidents 14 Apparatus . 14.1 Equipment for measuring density . 14.2 Heat treatment furnace . 25 Reagents 26 Sampling 27 Procedure. 27.1 Density measurements before heat treatment . 27.2 Heat treatment 37.3 Density measurements after heat treatment 38 Eva

    12、luation 39 Precision of the procedure . 410 Test report . 4Annex A (informative) Relationship between pellet mass evolution and O/M ratio evolution 5Bibliography 6BS EN ISO 15646:2016EN ISO 15646:2016 (E)EN ISO 15646:2016 (E) 3 European foreword The text of ISO 15646:2014 has been prepared by Techni

    13、cal Committee ISO/TC 85 “Nuclear energy, nuclear technologies, and radiological protection” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 15646:2016 by Technical Committee CEN/TC 430 “Nuclear energy, nuclear technologies, and radiological protection” t

    14、he secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2016, and conflicting national standards shall be withdrawn at the latest by October 2016. Attenti

    15、on is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards organizations of th

    16、e following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherl

    17、ands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 15646:2014 has been approved by CEN as EN ISO 15646:2016 without any modification. BS ISO 15646:2014ISO 15646:2014(E) ISO 2014 All rights reserve

    18、d iiiContents PageForeword iv1 Scope . 12 Brief description of procedure 13 Incidents 14 Apparatus . 14.1 Equipment for measuring density . 14.2 Heat treatment furnace . 25 Reagents 26 Sampling 27 Procedure. 27.1 Density measurements before heat treatment . 27.2 Heat treatment 37.3 Density measureme

    19、nts after heat treatment 38 Evaluation 39 Precision of the procedure . 410 Test report . 4Annex A (informative) Relationship between pellet mass evolution and O/M ratio evolution 5Bibliography 6BS EN ISO 15646:2016ISO 15646:2014(E)BS ISO 15646:2014ISO 15646:2014(E)ForewordISO (the International Orga

    20、nization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). 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 establis

    21、hed has the right to be represented on that committee. International organizations, governmental and 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

    22、.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with th

    23、e editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).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. Details of any paten

    24、t rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an

    25、 explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this

    26、 document is ISO/TC 85, Nuclear energy, nuclear technologies, and radiological protection, Subcommittee SC 5, Nuclear fuel cycle.iv ISO 2014 All rights reservedBS ISO 15646:2014INTERNATIONAL STANDARD ISO 15646:2014(E)Re-sintering test for UO2, (U,Gd)O2and (U,Pu)O2pellets1 ScopeThis International Sta

    27、ndard describes a procedure for measuring the densification of UO2, (U,Gd)O2, and (U,Pu)O2pellets, achieved by heat treatment under defined conditions.The densification of fuel in power operation is an important design feature. Essentially, it is dependent on structural parameters such as pore size,

    28、 spatial pore distribution, grain size, and in the case of (U,Gd)O2and (U,Pu)O2, oxide phase structure. A thermal re-sintering test can be used to characterize the dimensional behaviour of the pellets under high temperature. The results of this test are used by the fuel designer to predict dimension

    29、al behaviour in the reactor, because thermal densification in the reactor is also dependent on these structural parameters, albeit in a differing manner in terms of quantity.On the assumption of the prediction, it is necessary to correlate the results of this test by some correlation rules, because

    30、the results of this test vastly depend on the re-sintering conditions (such as heat treatment temperature, treatment time, gas content, and partial oxygen pressure).2 Brief description of procedureThe density of nuclear fuel pellets is measured before the re-sintering test. Afterwards, the pellets a

    31、re subjected to heat treatment in a furnace under specified conditions with regard to temperature, time, and sintering atmosphere. After cooling, the density is remeasured.The oxygen/metal molar ratio should remain constant during the re-sintering test. The difference between the two density measure

    32、ments shall be used to assess the thermal stability of the pellet lot.3 IncidentsMinor chipping can occur during pellet handling. Densities of visibly chipped pellets shall not be measured using the geometric method, as the results will be inaccurate.Densities of such chipped pellets can be measured

    33、 using the buoyancy method.4 ApparatusSpecifically for (U,Pu)O2, all operations shall be performed in glove boxes.4.1 Equipment for measuring densityThe same method shall be used before and after the re-sintering of pellets.In 4.1.1 and 4.1.2, two different measurement methods are mentioned as examp

    34、les. Other methods can be used if they meet the customer uncertainty requirement.4.1.1 Geometric measurement of densityA dial test indicator or micrometer with precision of 1 m shall be used in order to measure the diameter and the height.Analytical balance with readability of +1 mg for weighing the

    35、 pellets. ISO 2014 All rights reserved 1BS EN ISO 15646:2016ISO 15646:2014(E)BS ISO 15646:2014ISO 15646:2014(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is

    36、 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 non-governmental, in liaison with ISO, also take part

    37、 in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particula

    38、r the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this d

    39、ocument may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso

    40、.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO

    41、 principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 85, Nuclear energy, nuclear technologies, and radiological protection, Subcommittee SC 5, Nuclear fuel cycle.iv ISO 2014 All rights re

    42、servedBS ISO 15646:2014INTERNATIONAL STANDARD ISO 15646:2014(E)Re-sintering test for UO2, (U,Gd)O2and (U,Pu)O2pellets1 ScopeThis International Standard describes a procedure for measuring the densification of UO2, (U,Gd)O2, and (U,Pu)O2pellets, achieved by heat treatment under defined conditions.The

    43、 densification of fuel in power operation is an important design feature. Essentially, it is dependent on structural parameters such as pore size, spatial pore distribution, grain size, and in the case of (U,Gd)O2and (U,Pu)O2, oxide phase structure. A thermal re-sintering test can be used to charact

    44、erize the dimensional behaviour of the pellets under high temperature. The results of this test are used by the fuel designer to predict dimensional behaviour in the reactor, because thermal densification in the reactor is also dependent on these structural parameters, albeit in a differing manner i

    45、n terms of quantity.On the assumption of the prediction, it is necessary to correlate the results of this test by some correlation rules, because the results of this test vastly depend on the re-sintering conditions (such as heat treatment temperature, treatment time, gas content, and partial oxygen

    46、 pressure).2 Brief description of procedureThe density of nuclear fuel pellets is measured before the re-sintering test. Afterwards, the pellets are subjected to heat treatment in a furnace under specified conditions with regard to temperature, time, and sintering atmosphere. After cooling, the dens

    47、ity is remeasured.The oxygen/metal molar ratio should remain constant during the re-sintering test. The difference between the two density measurements shall be used to assess the thermal stability of the pellet lot.3 IncidentsMinor chipping can occur during pellet handling. Densities of visibly chi

    48、pped pellets shall not be measured using the geometric method, as the results will be inaccurate.Densities of such chipped pellets can be measured using the buoyancy method.4 ApparatusSpecifically for (U,Pu)O2, all operations shall be performed in glove boxes.4.1 Equipment for measuring densityThe s

    49、ame method shall be used before and after the re-sintering of pellets.In 4.1.1 and 4.1.2, two different measurement methods are mentioned as examples. Other methods can be used if they meet the customer uncertainty requirement.4.1.1 Geometric measurement of densityA dial test indicator or micrometer with precision of 1 m shall be used in order to measure the diameter and the height.Analytical balance with readability of +1 mg for weighing the pellets. ISO 2014 All rights reserved 1BS EN ISO 15646:2016BS ISO 15646:2014ISO 15646:2014(E)4.1.2 Measurement of den


    注意事项

    本文(EN ISO 15646-2016 en Re-sintering test for UO2 (U Gd)O2 and (U Pu)O2 pellets《再烧结试验二氧化铀( U GD)和O2(铀 钚)的颗粒》.pdf)为本站会员(ownview251)主动上传,麦多课文档分享仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文档分享(点击联系客服),我们立即给予删除!




    关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服 - 联系我们

    copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
    备案/许可证编号:苏ICP备17064731号-1 

    收起
    展开