7.0 References

认证之家 EUROPEAN STANDARDEN 55022 NORME EUROPÉENNEEUROPÄISCHE NORM September 2006CENELECEuropean Committee for Electrotechnical StandardizationComité Européen de Normalisation ElectrotechniqueEuropäisches Komitee für Elektrotechnische NormungCentral Secretariat: rue de Stassart 35, B - 1050 Brussels© 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.Ref. No. EN 55022:2006 E ICS 33.100.10Supersedes EN 55022:1998 + A1:2000 + A2:2003English versionInformation technology equipment -Radio disturbance characteristics -Limits and methods of measurement(CISPR 22:2005, modified)Appareils de traitement de l'information - Caractéristiques des perturbationsradioélectriques -Limites et méthodes de mesure(CISPR 22:2005, modifiée)Einrichtungen der Informationstechnik - Funkstöreigenschaften - Grenzwerte und Messverfahren (CISPR 22:2005, modifiziert)This European Standard was approved by CENELEC on 2005-09-13. CENELEC 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 such national standards may be obtained on application to the Central Secretariat or to any CENELEC 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 CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions.CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.EN 55022:2006– 2 –ForewordThe text of the International Standard CISPR 22:2003 as well as A1:2004 and CISPR/I/136/FDIS (Amendment 3) and CISPR/I/128/CDV (Amendment 2, fragment 17), prepared by CISPR SC I "Electromagnetic compatibility of information technology equipment, multimedia equipment and receivers", together with the common modifications prepared by the Technical Committee CENELEC TC 210, Electromagnetic compatibility (EMC), was submitted to the CENELEC Unique Acceptance Procedure for acceptance as a European Standard.In addition, the text of CISPR/I/135A/FDIS (future A2, fragment 1) to CISPR 22:2003, also prepared by CISPR SC I "Electromagnetic compatibility of information technology equipment, multimedia equipment and receivers", was submitted to the CENELEC formal vote as prAD to prEN 55022:2005, with the intention of the two documents being merged and ratified together as a new edition of EN 55022.During the period of voting on these CENELEC drafts, the amendments CISPR/I/135A/FDIS and CISPR/I/136/FDIS (Amendments 2 and 3 respectively) made to CISPR 22:2003, resulted in the publication of a new (fifth) edition of CISPR 22, in accordance with IEC rules. The resulting CISPR 22:2005 was published in April 2005.This resulting version of EN 55022, which was ratified on 2005-09-13, is therefore identical to CISPR 22:2005 except for the common modifications that were included in the document submitted to the CENELEC Unique Acceptance Procedure. The common modifications include CISPR/I/128/CDV, as this draft was not implemented in the unamended CISPR 22:2005.This European Standard supersedes EN 55022:1998 and its amendments A1:2000 and A2:2003.The following dates were fixed:–latest date by which the EN has to be implementedat national level by publication of an identicalnational standard or by endorsement (dop) 2007-04-01–latest date by which the national standards conflictingwith the EN have to be withdrawn (dow) 2009-10-01This European Standard has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association and covers essential requirements of EC Directives 89/336/EEC, 2004/108/EC and 1999/5/EC. See Annex ZZ.__________– 3 – EN 55022:2006CONTENTS INTRODUCTION (6)1Scope and object (7)2Normative references (7)3Definitions (8)4Classification of ITE (9)4.1Class B ITE (9)4.2Class A ITE (10)5Limits for conducted disturbance at mains terminals and telecommunication ports (10)5.1Limits of mains terminal disturbance voltage (10)5.2Limits of conducted common mode (asymmetric mode) disturbanceat telecommunication ports (11)6Limits for radiated disturbance (11)7Interpretation of CISPR radio disturbance limit (12)7.1Significance of a CISPR limit (12)7.2Application of limits in tests for conformity of equipment in series production (12)8General measurement conditions (13)8.1Ambient noise (13)8.2General arrangement (14)8.3EUT arrangement (16)8.4Operation of the EUT (18)8.5Operation of multifunction equipment (19)9Method of measurement of conducted disturbance at mains terminals and telecommunication ports (20)9.1Measurement detectors (20)9.2Measuring receivers (20)9.3Artificial mains network (AMN) (20)9.4Ground reference plane (21)9.5EUT arrangement (21)9.6Measurement of disturbances at telecommunication ports (23)9.7Recording of measurements (27)10Method of measurement of radiated disturbance (27)10.1Measurement detectors (27)10.2Measuring receivers (27)10.3Antenna (27)10.4Measurement site (28)10.5EUT arrangement (29)10.6Recording of measurements (29)10.7Measurement in the presence of high ambient signals (30)10.8User installation testing (30)11Measurement uncertainty (30)EN 55022:2006– 4 –Annex A (normative) Site attenuation measurements of alternative test sites (41)Annex B (normative) Decision tree for peak detector measurements (47)Annex C (normative) Possible test set-ups for common mode measurements (48)Annex D (informative) Schematic diagrams of examples of impedance stabilization networks (ISN) (55)Annex E (informative) Parameters of signals at telecommunication ports (64)Annex F (informative) Rationale for disturbance measurements and methods (67)Annex ZA (normative) Normative references to international publications with their corresponding European publications (75)Annex ZZ (informative) Coverage of Essential Requirements of EC Directives (76)Bibliography (74)Figure 1 – Test site (31)Figure 2 – Minimum alternative measurement site (32)Figure 3 – Minimum size of metal ground plane (32)Figure 4 – Example test arrangement for tabletop equipment (conducted and radiated emissions) (plan view) (33)Figure 5 – Example test arrangement for tabletop equipment (conducted emission measurement – alternative 1a) (34)Figure 6 – Example test arrangement for tabletop equipment (conducted emission measurement – alternative 1b) (34)Figure 7 – Example test arrangement for tabletop equipment (conducted emission measurement – alternative 2) (35)Figure 8 – Example test arrangement for floor-standing equipment (conductedemission measurement) (36)Figure 9 – Example test arrangement for combinations of equipment (conductedemission measurement) (37)Figure 10 – Example test arrangement for tabletop equipment (radiated emission measurement) (37)Figure 11 – Example test arrangement for floor-standing equipment (radiated emission measurement) (38)Figure 12 – Example test arrangement for floor-standing equipment with vertical riserand overhead cables (radiated and conducted emission measurement) (39)Figure 13 – Example test arrangement for combinations of equipment (radiatedemission measurement) (40)Figure A.1 – Typical antenna positions for alternate site NSA measurements (44)Figure A.2 – Antenna positions for alternate site measurements for minimumrecommended volume (45)Figure B.1 – Decision tree for peak detector measurements (47)Figure C.1 – Using CDNs described in IEC 61000-4-6 as CDN/ISNs (49)Figure C.2 – Using a 150 Ω load to the outside surface of the shield ("in situCDN/ISN") (50)Figure C.3 – Using a combination of current probe and capacitive voltage probe (50)Figure C.4 – Using no shield connection to ground and no ISN (51)Figure C.5 – Calibration fixture (53)Figure C.6 – Flowchart for selecting test method (54)Figure D.1 − ISN for use with unscreened single balanced pairs (55)– 5 – EN 55022:2006 Figure D.2 − ISN with high longitudinal conversion loss (LCL) for use with either oneor two unscreened balanced pairs (56)Figure D.3 − ISN with high longitudinal conversion loss (LCL) for use with one, two,three, or four unscreened balanced pairs (57)Figure D.4 − ISN, including a 50 Ω source matching network at the voltage measuringport, for use with two unscreened balanced pairs (58)Figure D.5 − ISN for use with two unscreened balanced pairs (59)Figure D.6 − ISN, including a 50 Ω source matching network at the voltage measuringport, for use with four unscreened balanced pairs (60)Figure D.7 − ISN for use with four unscreened balanced pairs (61)Figure D.8 − ISN for use with coaxial cables, employing an internal common modechoke created by bifilar winding an insulated centre-conductor wire and an insulatedscreen-conductor wire on a common magnetic core (for example, a ferrite toroid) (61)Figure D.9 − ISN for use with coaxial cables, employing an internal common modechoke created by miniature coaxial cable (miniature semi-rigid solid copper screen or miniature double-braided screen coaxial cable) wound on ferrite toroids (62)Figure D.10 − ISN for use with multi-conductor screened cables, employing an internal common mode choke created by bifilar winding multiple insulated signal wires and an insulated screen-conductor wire on a common magnetic core (for example, a ferrite toroid) (62)Figure D.11 − ISN for use with multi-conductor screened cables, employing an internal common mode choke created by winding a multi-conductor screened cable on ferrite toroids (63)Figure F.1 – Basic circuit for considering the limits with defined TCM impedance of 150 Ω..70 Figure F.2 – Basic circuit for the measurement with unknown TCM impedance (70)Figure F.3 – Impedance layout of the components used in Figure C.2 (72)Figure F.4 – Basic test set-up to measure combined impedance of the 150 Ω and ferrites (73)Table 1 – Limits for conducted disturbance at the mains ports of class A ITE (10)Table 2 – Limits for conducted disturbance at the mains ports of class B ITE (11)Table 3 – Limits of conducted common mode (asymmetric mode) disturbanceat telecommunication ports in the frequency range 0,15 MHz to 30 MHz for class A equipment (11)Table 4 – Limits of conducted common mode (asymmetric mode) disturbance at telecommunication ports in the frequency range 0,15 MHz to 30 MHz for class B equipment (11)Table 5 – Limits for radiated disturbance of class A ITE at a measuring distance of10 m (12)Table 6 – Limits for radiated disturbance of class B ITE at a measuring distance of10 m (12)Table 7 – Acronyms used in figures (31)Table A.1 – Normalized site attenuation (A N (dB)) for recommended geometries with broadband antennas (43)Table F.1 – Summary of advantages and disadvantages of the methods described inAnnex C (68)EN 55022:2006– 6 –INTRODUCTIONThe scope is extended to the whole radio-frequency range from 9 kHz to 400 GHz, but limits are formulated only in restricted frequency bands, which is considered sufficient to reach adequate emission levels to protect radio broadcast and telecommunication services, and to allow other apparatus to operate as intended at reasonable distance.– 7 – EN 55022:2006 INFORMATION TECHNOLOGY EQUIPMENT –RADIO DISTURBANCE CHARACTERISTICS –LIMITS AND METHODS OF MEASUREMENT1 Scope and objectThis International Standard applies to ITE as defined in 3.1.Procedures are given for the measurement of the levels of spurious signals generated by the ITE and limits are specified for the frequency range 9 kHz to 400 GHz for both class A and class B equipment. No measurements need be performed at frequencies where no limits are specified.The intention of this publication is to establish uniform requirements for the radio disturbance level of the equipment contained in the scope, to fix limits of disturbance, to describe methods of measurement and to standardize operating conditions and interpretation of results.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.IEC 60083:1997, Plugs and socket-outlets for domestic and similar general use standardized in member countries of IECIEC 61000-4-6:2003, Electromagnetic compatibility (EMC) – Part 4-6: Testing and measurement techniques – Immunity to conducted disturbances, induced by radio-frequency fieldsCISPR 11:2003, Industrial, scientific, and medical (ISM) radio-frequency equipment – Electro-magnetic disturbance characteristics – Limits and methods of measurementCISPR 13:2001, Sound and television broadcast receivers and associated equipment – Radio disturbance characteristics – Limits and methods of measurementCISPR 16-1-1:2003, Specification for radio disturbance and immunity measuring apparatus and methods – Part 1-1: Radio disturbance and immunity measuring apparatus – Measuring apparatusCISPR 16-1-2:2003, Specification for radio disturbance and immunity measuring apparatus and methods – Part 1-2: Radio disturbance and immunity measuring apparatus – Ancillary equipment – Conducted disturbances 1Amendment 1 (2004)___________1There exists a consolidated edition 1.1 (2004) including edition 1.0 and its Amendment 1.EN 55022:2006– 8 –CISPR 16-1-4:2004, Specification for radio disturbance and immunity measuring apparatus and methods – Part 1-4: Radio disturbance and immunity measuring apparatus – Ancillary equipment – Radiated disturbancesCISPR 16-4-2:2003, Specification for radio disturbance and immunity measuring apparatus and methods – Part 4-2: Uncertainties, statistics and limit modelling – Uncertainty in EMC measurements3 DefinitionsFor the purposes of this document the following definitions apply:3.1information technology equipment (ITE)any equipment:a) which has a primary function of either (or a combination of) entry, storage, display,retrieval, transmission, processing, switching, or control, of data and of telecommuni-cation messages and which may be equipped with one or more terminal ports typically operated for information transfer;b) with a rated supply voltage not exceeding 600 V.It includes, for example, data processing equipment, office machines, electronic business equipment and telecommunication equipment.Any equipment (or part of the ITE equipment) which has a primary function of radio trans-mission and/or reception according to the ITU Radio Regulations are excluded from the scope of this publication.NOTE Any equipment which has a function of radio transmission and/or reception according to the definitions of the ITU Radio Regulations should fulfil the national radio regulations, whether or not this publication is also valid. Equipment, for which all disturbance requirements in the frequency range are explicitly formulated in other IEC or CISPR publications, are excluded from the scope of this publication.3.2equipment under test (EUT)representative ITE or functionally interactive group of ITE (system) which includes one or more host unit(s) and is used for evaluation purposes3.3host unitpart of an ITE system or unit that provides the mechanical housing for modules, which may contain radio-frequency sources, and may provide power distribution to other ITE. Power distribution may be a.c., d.c., or both between the host unit(s) and modules or other ITE3.4modulepart of an ITE which provides a function and may contain radio-frequency sources3.5identical modules and ITEmodules and ITE produced in quantity and within normal manufacturing tolerances to a given manufacturing specification– 9 – EN 55022:20063.6telecommunications/network portpoint of connection for voice, data and signalling transfers intended to interconnect widely-dispersed systems via such means as direct connection to multi-user telecommunications networks (e.g. public switched telecommunications networks (PSTN) integrated services digital networks (ISDN), x-type digital subscriber lines (xDSL), etc.), local area networks (e.g. Ethernet, Token Ring, etc.) and similar networksNOTE A port generally intended for interconnection of components of an ITE system under test (e.g. RS-232, IEEE Standard 1284 (parallel printer), Universal Serial Bus (USB), IEEE Standard 1394 (“Fire Wire”), etc.) and used in accordance with its functional specifications (e.g. for the maximum length of cable connected to it), is not considered to be a telecommunications/network port under this definition.3.7multifunction equipmentinformation technology equipment in which two or more functions subject to this standard and/or to other standards are provided in the same unitNOTE Examples of information technology equipment include–a personal computer provided with a telecommunication function and/or broadcast reception function; – a personal computer provided with a measuring function, etc.3.8total common mode impedanceTCM impedanceimpedance between the cable attached to the EUT port under test and the reference ground planeNOTE The complete cable is seen as one wire of the circuit, the ground plane as the other wire of the circuit. The TCM wave is the transmission mode of electrical energy, which can lead to radiation of electrical energy if the cable is exposed in the real application. Vice versa, this is also the dominant mode, which results from exposition of the cable to external electromagnetic fields.3.9arrangementphysical layout of the EUT that includes connected peripherals/associated equipment within the test area3.10configurationmode of operation and other operational conditions of the EUT3.11associated equipmentAEequipment needed to maintain the data traffic on the cable attached to the EUT port under test and (or) to maintain the normal operation of the EUT during the test. The associated equipment may be physically located outside the test areaNOTE The AE can be another ITE, a traffic simulator or a connection to a network. The AE can be situated close to the measurement set-up, outside the measurement room or be represented by the connection to a network. AE should not have any appreciable influence on the test results.4 Classification of ITE4.1 Class B ITEClass B ITE is a category of apparatus which satisfies the class B ITE disturbance limits. ITE is subdivided into two categories denoted class A ITE and class B ITE.EN 55022:2006 – 10 – Class B ITE is intended primarily for use in the domestic environment and may include:– equipment with no fixed place of use; for example, portable equipment powered by built-inbatteries;– telecommunication terminal equipment powered by a telecommunication network; – personal computers and auxiliary connected equipment.NOTE The domestic environment is an environment where the use of broadcast radio and television receivers may be expected within a distance of 10 m of the apparatus concerned.4.2 Class A ITE WarningThis is a class A product. In a domestic environment this product may cause radio inter-ference in which case the user may be required to take adequate measures.5 Limits for conducted disturbance at mains terminalsand telecommunication portsThe equipment under test (EUT) shall meet the limits in Tables 1 and 3 or 2 and 4, as appli-cable, including the average limit and the quasi-peak limit when using, respectively, an average detector receiver and quasi-peak detector receiver and measured in accordance with the methods described in Clause 9. Either the voltage limits or the current limits in Table 3 or 4, as applicable, shall be met except for the measurement method of C.1.3 where both limits shall be met. If the average limit is met when using a quasi-peak detector receiver, the EUT shall be deemed to meet both limits and measurement with the average detector receiver is unnecessary.If the reading of the measuring receiver shows fluctuations close to the limit, the reading shall be observed for at least 15 s at each measurement frequency; the higher reading shall be recorded with the exception of any brief isolated high reading which shall be ignored.5.1 Limits of mains terminal disturbance voltageTable 1 – Limits for conducted disturbance at the mains portsof class A ITE Limits dB(μV) Frequency rangeMHzQuasi-peak Average 0,15 to 0,5079 66 0,50 to 30 73 60NOTE The lower limit shall apply at the transition frequency.Class A ITE is a category of all other ITE which satisfies the class A ITE limits but not the class B ITE limits. The following warning shall be included in the instructions for use:Table 2 – Limits for conducted disturbance at the mains portsof class B ITE Limits dB(μV) Frequency rangeMHzQuasi-peak Average 0,15 to 0,5066 to 56 56 to 46 0,50 to 556 46 5 to 30 60 50NOTE 1 The lower limit shall apply at the transition frequencies.NOTE 2 The limit decreases linearly with the logarithm of the frequency in therange 0,15 MHz to 0,50 MHz.5.2 Limits of conducted common mode (asymmetric mode) disturbanceat telecommunication ports 2)Table 3 – Limits of conducted common mode (asymmetric mode) disturbanceat telecommunication ports in the frequency range 0,15 MHz to 30 MHzfor class A equipment Voltage limits dB (μV) Current limits dB (μA) Frequency rangeMHzQuasi-peak Average Quasi-peak Average0,15 to 0,597 to 87 84 to 74 53 to 43 40 to 30 0,5 to 30 87 74 43 30 NOTE 1 The limits decrease linearly with the logarithm of the frequency in the range 0,15 MHz to 0,5 MHz.NOTE 2 The current and voltage disturbance limits are derived for use with an impedance stabilization network (ISN) which presents a common mode (asymmetric mode) impedance of 150 Ω to the telecommunication port under test (conversion factor is 20 log 10 150 / I = 44 dB).Table 4 – Limits of conducted common mode (asymmetric mode) disturbanceat telecommunication ports in the frequency range 0,15 MHz to 30 MHzfor class B equipment Voltage limits dB(μV) Current limits dB(μA) Frequency rangeMHzQuasi-peak Average Quasi-peakAverage 0,15 to 0,584 to 74 74 to 64 40 to 30 30 to 20 0,5 to 30 74 64 30 20 NOTE 1 The limits decrease linearly with the logarithm of the frequency in the range 0,15 MHz to 0,5 MHz.NOTE 2 The current and voltage disturbance limits are derived for use with an impedance stabilization network (ISN) which presents a common mode (asymmetric mode) impedance of 150 Ω to the telecommunication port under test (conversion factor is 20 log 10 150 / I = 44 dB).6 Limits for radiated disturbanceThe EUT shall meet the limits of Table 5 or Table 6 when measured at the measuring distance R in accordance with the methods described in Clause 10. If the reading on the measuring receiver shows fluctuations close to the limit, the reading shall be observed for at least 15 s at each measurement frequency; the highest reading shall be recorded, with the exception of any brief isolated high reading, which shall be ignored.___________2) See 3.6.Table 5 – Limits for radiated disturbance of class A ITE at a measuring distance of 10 mFrequency rangeMHz Quasi-peak limits dB(μV/m)30 to 230 40230 to 1 000 47NOTE 1 The lower limit shall apply at the transition frequency.NOTE 2 Additional provisions may be required for cases where interference occurs.Table 6 – Limits for radiated disturbance of class B ITEat a measuring distance of 10 mFrequency rangeMHz Quasi-peak limits dB(μV/m)30 to 230 30230 to 1 000 37NOTE 1 The lower limit shall apply at the transition frequency.NOTE 2 Additional provisions may be required for cases where interferenceoccurs.7 Interpretation of CISPR radio disturbance limit7.1 Significance of a CISPR limit7.1.1 A CISPR limit is a limit which is recommended to national authorities for incorporation in national publications, relevant legal regulations and official specifications. It is also recom-mended that international organizations use these limits.7.1.2The significance of the limits for equipment shall be that, on a statistical basis, at least 80 % of the mass-produced equipment complies with the limits with at least 80 % confidence.7.2 Application of limits in tests for conformity of equipment in series production7.2.1Tests shall be made:7.2.1.1Either on a sample of equipment of the type using the statistical method of evaluation set out in 7.2.3.7.2.1.2Or, for simplicity's sake, on one equipment only.7.2.2Subsequent tests are necessary from time to time on equipment taken at random from production, especially in the case referred to in 7.2.1.2.7.2.3Statistically assessed compliance with limits shall be made as follows:This test shall be performed on a sample of not less than five and not more than 12 items of the type. If, in exceptional circumstances, five items are not available, a sample of four or three shall be used. Compliance is judged from the following relationship:x kS +≤n L wherex is the arithmetic mean of the measured value of n items in the sample()S n x x n 2n 211=−−∑x n is the value of the individual itemL is the appropriate limitk is the factor derived from tables of the non-central t -distribution which assures with 80 %confidence that 80 % of the type is below the limit; the value of k depends on the sample size n and is stated below.The quantities x n , x , S n and L are expressed logarithmically: dB(μV), dB(μV/m) or dB(pW). n3 4 5 6 7 8 9 10 11 12 k 2,04 1,69 1,52 1,42 1,35 1,30 1,27 1,24 1,21 1,207.2.4 The banning of sales, or the withdrawal of a type approval, as a result of a dispute shall be considered only after tests have been carried out using the statistical method of evaluation in accordance with 7.2.1.1.8 General measurement conditions8.1 Ambient noiseA test site shall permit disturbances from the EUT to be distinguished from ambient noise. The suitability of the site in this respect can be determined by measuring the ambient noise levels with the EUT inoperative and ensuring that the noise level is at least 6 dB below the limits specified in Clauses 5 and 6.If at certain frequency bands the ambient noise is not 6 dB below the specified limit, the methods shown in 10.5 may be used to show compliance of the EUT to the specified limits. It is not necessary that the ambient noise level be 6 dB below the specified limit where both ambient noise and source disturbance combined do not exceed the specified limit. In this case the source emanation is considered to satisfy the specified limit. Where the combined ambient noise and source disturbance exceed the specified limit, the EUT shall not be judged to fail the specified limit unless it is demonstrated that, at any measurement frequency for which the limit is exceeded, two conditions are met:a) the ambient noise level is at least 6 dB below the source disturbance plus ambient noiselevel;b) the ambient noise level is at least 4,8 dB below the specified limit.。

Shenhua Ningxia Coal Industry Group Co. Ltd神华宁夏煤业集团有限责任公司Contract Title 合同标题Ningxia Coal Based Propylene Project宁夏煤基烯烃项目Integrated Project Management Team一体化项目管理组Yinchuan, Ningxia, P R China中国宁夏银川Document Title: 文件标题：NCPP IPMTPRESSURE RELIEF VALVE STANDARD泄压阀标准Document No.文件编号：SD-0000-PEN-080-0008ENGLISH LANGUAGE IS THE "ORIGINAL" LANGUAGE AND IF INCONSISTENCIES EXIST BETWEEN ENGLISH AND CHINESE VERSIONS, THE ENGLISH VERSION TAKES PRECEDENCE AND THE ENGLISH VERSION IS THE LEGALLY BINDING VERSION.原本以英文书就，如果英文和中文版本之间存在不一致，以英文版本为准，英文版本具有法律约束力。

A00 For Approved GZS 12/01/07 TDR00 For Review TD 20/11/06 - -Issue Rev 发布修订Issue or Revision Description发布或修改情况Origin by原作者Date日期Check by审核人Date日期ApprovedBy批准人Date日期Approve by批准人Date日期This Document is Owned by 本文件持有者TONY DWYER IPMT AuthorityIPMT授权批准HARD COPIES ARE UNCONTROLLED硬拷贝为非受控文件Pressure RELIEF VALVE Standard泄压阀标准Table of Contents目录1.0SCOPE 范围 (3)1.1Terminology 术语 (3)1.2Language 语言 (3)1.3Standardisation 标准化 (3)1.4Integrated Project Management Team (IPMT) Strategy一体化项目管理团队（IPMT）策略 (4)1.5Life Cycle Costs 寿命周期成本 (4)2.0REFERENCES 参考 (4)2.1Abbreviations and Acronyms 缩写词与缩略语 (4)2.2Codes and Standards 规范与标准 (6)2.3Reference Documents 参考文献 (9)3.0MECHANICAL DESIGN 机械设计 (9)4.0SELECTION OF VALVE TYPE 阀型选择 (13)5.0SIZING 尺寸选择 (14)6.0NAMEPLATES and TAGGING铭牌 (14)7.0PREPARATION FOR SHIPMENT 运输准备 (15)APPENDIX A - PIPE, VALVE AND FLANGE SIZES附录A 管道、阀门和法兰尺寸1.0 SCOPE 范围This Standard covers the minimum requirements for the design, materials, manufacturing of pressure relief valves to be provided for the Shenhua Ningxia Coal Group’s Ningxia Coal based Propylene Project which will be built at Ningdong Energy & Heavy Chemical Base, Lingwu city, Yinchuan in Ningxia Hui Autonomous Region, P R China. This Standard will be issued to all participating contractors for full compliance. Any exceptions shall be referred back to the NCPP Integrated Project Management Team (IPMT) for review and evaluation. This document will form part of the design basis of each NCPP contract.本文件对将建于宁夏回族自治区银川宁东能源化工基地的宁煤煤基烯烃项目中所使用的泄压阀在设计、材料以及制造方面的最低要求。

利用EndNote7.0写文章(转载)EndNote在安装时可以自动整合到Word 97、2000、XP中，使用者可以简单轻松地将EndNote7.0的库内文献加入到Word文档里，进而格式化引文形成合乎杂志要求的引文样式。

另外EndNote7.0提供各种文稿的模板，写文章实现了流水线模块化。

注意：最好先安装Word后再安装EndNote7.0，反之有可能不整合。

解决办法是重装EndNote7.0。

文稿模板：EndNote 提供了大量合乎各种杂志要求的稿件模板，收集在“Templates folder”里，写文章时选择合适的模板可大大简化写作过程。

文稿模板经过了格式化，对页边距、标题、行距、首页、摘要、图形位置、字型字号等都做了规范。

用模板书写文章的流程：1. 打开模板：从EndNote里打开:点击“Tools”下拉菜单里的“Manuscript Templates”后选择模板；或者从Word里打开：“新建”“通用模板”“EndNote” 选择模板。

2. 模板在Word里打开后，出现“Template Wizard”3. 依次填写“Template Wizard”所要求的信息，Template Wizard会将其转入到文章合适的位置。

4. 填写完后点击“Finish”，进入Word里的模板。

5. 按照版式填写。

“Cite While You Write”是EndNote7.0里与Word整合的元件，可以直接从Word的“工具”菜单里找到和使用。

“Cite While You Write”里的选项：1. Find Citation(s): 用于打开“EndNote Find Citations”对话框搜索和插入库内文献，其搜索方式是“任何字段”式的。

2. Go To EndNote: 打开EndNote3. Format Bibliography: 对引文样式进行格式化。

格式化就是将当前临时的引文转化成一定格式的引文，同时在文章结尾处自动生成引文列表。

TABLE OF CONTENTSNO. DESCRIPTION1.0 PURPOSE 目的2.0 SCOPE 范围3.0 REFERENCES 参考4.0 DEFINITION 定义/说明5.0 PROCEDURES 程序6.0 SIGN OFF ITP ITP确认7.0 APPENDICES 附录APPENDIX1--- ITP For Mechanical & Electrical Assembly1.0 PURPOSE 目的The purpose of this Inspection and Testing Plan (ITP) is to identify and define the specific Quality Control Inspection Interventions and Testing activities to be performed at pre-defined stages by the inspection personnel consisting of ZPMC’s QC, ZPMC’s subcontractor, Client (Allseas) and classification society (Lloyds Register).ITP的目的是定义说明ZPMC质检、施工队，船级社及业主在设备安装过程中如何执行检查及测试，并有效的控制质量。

2.0 SCOPE 范围This ITP covers the Inspection and Testing of Electrical & Mechanical Installation disciplines, as mentioned in APPENDIX 1, as required by the Contract, Project Specifications and LR Classification Society Rules and identifies the specific involvement of ZPMC’s QC, ZPMC’s subcontractor, classification society and client’s inspection personnel in the Electrical & Mechanical Installation.ITP的执行范围按照附录1具体执行，要求项目过程中具体实施细节。

请大家记住：论文中，中英文摘要、正文和参考文献是最重要的部分，参考文献要懂得筛选，多用权威期刊或者论著，不要用一些乱七八糟的杂志的文章。

我们从现在开始要重视参考文献的格式，因为这是你们论文中错误最多的部分，现在把references的格式写对了，以后就专注改正文，以提高效率。

下列按照毕业论文的格式写，以后不按照这个格式，我都会打回去重写，再不改正只能在评语中注明“参考文献格式不正确”。

注意事项：1. 先列英文参考文献，后列中文，五号字体，英文用Times New Roman，中文用宋体（其实全部刷黑，选“Times New Roman”就可以了，宋体是默认的）；中国人在中国的出版社、杂志上发表的文章，还是放在中文参考书目中，不要为了凑英文部分的数，直接翻译成英语；不要为了凑数，把一些无关论文的文章也列进来；一篇文献要么全是英文，要么全是中文，不要中英文并存2. 顺序：(注意标点符号的用法)(1) 专著、论文集、学位论文，例如[序号] 作者. (出版年). 文献题名. 出版地: 出版者.(2) 期刊文章，例如[序号] 作者. (出版年). 文献题名. 刊名, 卷(期): 起止页码.(3) 电子文献，例如[序号] 作者. 电子文献题名. 电子文献的出处或可获得地址, 发表日期或引用日期(自选).3. 按照姓的第一个字母或拼音从a-z的顺序排列，重复的按照第二个字母，以此类推，同一个作者的以第二个作者或书名、期刊名的第一个字母。

英文的作者先姓，后名（名用首字母缩写）4. 所有标点符号全部都是英文输入状态下的符号，即“[ ] ,.:”，标点符号之后记得要空一格，什么时候用哪个符号，一定要弄清楚5. 英文书名、期刊名用斜体，实词请全部首字母大写！！！！！！6. 外语类核心期刊有：外语教学与研究，外国语，外语与外语教学，外语界，现代外语，解放军外国语学院学报，外语教学，外语学刊，当代语言学，中国科技翻译，中国翻译，外语电化教学7. 最后请大家亲自打references部分，不要从别人的期刊直接copy不规范的文献格式。

总页数: 15页( 13页＋2个附件: 2页)Total pages: 15 pages (13 pages + 2 appendices : 2 pages)目录TA BLE OF CONTENTS:1.目的OBJECTIVE (2)2.范围SCOPE (2)3.职责RESPONSIBILITIES (2)4.步骤PROCEDURE (3)4.0流程图Flowchart (3)4.1质量管理体系Quality Management System (4)4.2优良药品生产管理规范Good Manufacturing Practice (5)4.3管理原则Management Principle (6)5.术语GLOSSARY (13)6.参考文件REFERENCES (13)7.附件APPENDIX (13)8.其他相关信息RELA TED FORMS AND TRAINING MA TERIAL (13)8.1表格Forms (13)8.2培训资料Training Material (13)1. 目的OBJECTIVE2. 范围 SCOPE3. 职责 RESPONSIBILITIES4. 步骤 PROCEDURE4.0 流程图 Flowchart4.1 质量管理体系Quality Management System4.1.1. 介绍Introduction:上海葛兰素史克的质量体系是一个具有生命力的系统,全面的政策,支持的过程和与法规要求一致的程序,并在公司内部进行积极的管理Quality Management system is a living system with comprehensive policies, supported by process and procedure aligned to regulatory requirement and requiring active management in GSKBS该体系的输入为: Input of this system-Global Requirements (including GQPs, GQMPs, GSOPs, Global Quality Council Communication and GlobalQuality Alert……)全球要求（包括GQPs, GQMPs, GSOPs, 全球质量管理会议沟通和质量警报）-Continuous Improvement based on process基于过程的持续改进-Regulatory Requirements 法规政策4.1.2. 详细步骤Detailed step4.2 优良药品生产管理规范Good Manufacturing Practice4.2.1. 介绍Introduction优良药品生产管理规范是药品生产的最低要求,也是确定我们做正确的事,并正确地做事的过程.Good Manufacturing Practice is the regulatory requirement for drug manufacturing, and a process to ensuring that we do right things, and do things right.从八个方面进行介绍Introduce GMP from eight sections:4.2.1.1 管理Management4.2.1.2 人员Personnel4.2.1.3 文件和数据Documentation & Data4.2.1.4 设施Facilities4.2.1.5 物料与产品控制Material and Product Control4.2.1.6 过程保证Process Assurance4.2.1.7 分析控制Analytical Controls4.2.1.8 事件管理Incident Management所有有关的文件可以参考S:\SOP\Controlled Documents。

The Data Room provides …EoM Report on EIA evaluation for Lithuania" conducted on 26-30 of January, 2009 on the basis of the EIA report. The main conclusion which is presented in the I A E A report states that the EIA report provides enough information, analys is and conclusions for a project at this stage to make an appropriate decision in order to proceed to the subsequent steps in the process to build a new NPP in Lithuania.IAEA report constitutes of recommendations and comments for the EIA which according to VAE opinion were evaluated and reflected in the final version of EIA report.This opinion of VAE is presented for informational purposes only and reflects only the understanding of VAE, it shall not be considered as contradicting, replacing or otherwise affecting already delivered and that to be delivered in future reports and opinions of IAEA. VAE does not intend to affect any reader of this document by its opinion; each document reader has to evaluate the correctness of the statement expressed in this opinion on its own efforts. In this regard no representation, warranty or undertaking, express or implied, is or will be given and no responsibility or liability is or will be accepted by VAE, or by any of its directors, officers, employees‟ agents or advis ers, in relation to the accuracy or completeness of this opinion or any other written or oral information made available in connection with this opinion. VAE waives any liability and the reimbursement of any damages incurred or for any losses suffered in connection to the use of this opinion or any part of it. So far as is permitted in law, any responsibility or liability for such information is expressly disclaimed."Mr Ovidijus Sestokas Wagramer Strase S .PO Box 100.1400 Wren AusinaPhone (-43 1)2600 Fax (-43 1)26007Email Official Mad@ Internet http://www.State Nuclear Power Safety Inspectorate In reply please refer LIT/9/009Dial directly to esension (-43 1) 2600-22331(VATESI)A.Gostauto Strcet 1201108 VilniusLithuania2009-07-23Subject End of Mission Report on LIT/9/009Dear Mr SestokasEnclosed please find the report No.IAEA-TCR-04758 of the mission to Vilnius(Lithuama),from 2009-01-26 to 2009-01-30,prepared by Dr Michel Chartier Dr Peter Hacker,Mr Neil Harman Mr Justin G Smith,and Mr Brian Turland who served as experts under the project LIT/9/009 "Enhancing capabilities in VATESI and institutions in the licensing of a new NPP".task with the title "Expert mission for the evaluation of Environmental impact assessment report for a new nuclear power plant in Lithuania.Please do not hesitate to contact us,should you have any questions or comments regarding the report and its recommendations.Yours sincerely,Oscar AcunaHead Europe Section 2Division for EuropeDepartment of Technical CooperationEnclosureCc:TCNLO+Vienna MissionIAEA-TCR-04758 INTERNATIONAL ATOMIC ENERGY AGENCY(IAEA-TCR-04758)"Enhancing capabilities in VATESI and other institutions in the licensing of anew NPP"Europe Section 2Contents1. INTRODUCTION (1)1.1 Background (1)1.2 IAEA International Mission of Experts (1)1.2.1 Framework (2)1.2.2 Participants (2)1.2.3 Scope of the review (3)1.2.4 Work done (3)1.2.5 Structure of the Mission Report (4)2. MAIN CONCLUSION (4)3. FINDINGS, CONCLUSIONS AND RECOMMENDATIONS (5)3.1 Scope and format of the EI A Report (5)3.2 Radiological impact from discharges during normal operation (6)3.2.1 Principal conclusion (6)3.2.2 Comments (6)3.2.3 Transboundary considerations (8)3.3 Consideration of accidental release scenarios (9)3.3.1 Principal conclusion (9)3.3.2 Comments (9)3.4 Hydrogcological aspects (12)3.4.1 Comments (12)3.5 Radioactive waste (13)3.6 Impacts from ancillary activities (13)3.7 Public consultation (13)3.8 Consideration of external events and impacts (14)4. ADDITIONAL COMMENTS (14)4.1 Hydrogeological and hydrological aspects (14)4.1.1 The state of waters (14)4.2 Accident analysis (15)4.3 Risk assessment (17)REFERENCES (21)APPENDIX I. IAEA EXPERT MISSION PARTICIPANTS (23)APPENDIX II. INITIAL RESPONSES BY PÔYRY ENERGY OY-LITHUANIAN ENERGY INSTITUTE (25)1. INTRODUCTION1.1BackgroundWithin the process for the authorization of the construction of a new nuclear power plant (NPP) in Lithuania, the organizer of the proposed economic activity, Visagino Atomine Electrine, UAB (VAE), entrusted the consortium Poyry Energy Oy-Lithuanian Energy Institute (Poyry-LEI) to develop an Environmental Impact Assessment (EIA).The EI A is a prerequisite of the early stages of the decision making process for the construction of this relevant installation as established in national and international legislations of relevance for Lithuania, and has the objective to describe how the enterprise would influence the surrounding environment and evaluate whether the impacts of the project are environmentally and socially acceptable. The EIA studies under consideration were structured in order to determine whether the proposed economic activity may be carried out at the chosen site or sites; to identify and to evaluate viable alternatives of the project; to assess potential environmental impacts of the proposed economic activity and to ensure that environmental matters are taken into account before the development consent is given and; to provide information on the proposed economic activity for all EIA participants and stakeholders.Within the EIA procedure, a public review was carried out to which the local and international communities were invited to participate. Once the local and international communities have had the opportunity to register their comments on the EIA report, the Lithuanian Ministry of Environment will be responsible for its approval. This approval is necessary before the project is entitled to proceed. The EIA procedure started in May 2007 and many steps were already accomplished at the time that the IAEA Mission took place (described in Section 1.2 below). These steps included preparation of the EIA Programme, submission of the Preliminary EIA Programme to all involved parties, domestic and international commenting, submission of the Final EIA Programme to the competent authority, approval of the Programme.The EIA Report was initiated in November 2007 and by October 2008, the preliminary report was presented for comment. During this period for receiving comments from stakeholders, the International Atomic Energy Agency (IAEA), in its role as an UN International Organization specialized in nuclear and radiological safety, was invited by the Govemnleht of Lithuania to review the EIA Report and produce an appraisal based on the application of IAEA International Safety Standards.1.2IAEA International Mission of ExpertsFollowing the request of the Government of Lithuania, the IAEA organized an appraisal of the EIA Report for a new NPP by means of an International Expert Mission. The Mission took place in Vilnius from 26 to 30 January 2009.The appraisal was organized in accordance with the functions established under Article III.A.6 of the IAEA Statute, namely to provide for the application of its international safety standards for radiation protection of workers, public and the environment. Additionally, recognized good practices in radiological and nuclear safety and the background of the selected experts were considered during the appraisal activities.1.2.1FrameworkThe reference framework that governed the implementation of the appraisal by the IAEA was the international standards applicable to radiation protection and safety—that is, the Fundamental Safety Principles1 [1], and the International Basic Safety Standards for Protection against Ionizing Radiation and for the Safety of Radiation Sources'2 [2], These standards are based on the comprehensive scientific review of the effects of ionizing radiation carried out by the United Nation Scientific Committee on the Effects of Atomic Radiation (UNSCEAR), which and can be found in its reports [3-5], and the current recommendations on radiological protection by the International Commission on Radiological Protection3 (ICRP) published in 1991 [6] and updated in 2007 [7],The following specific IAEA nuclear and radiological safety guides were also used as references: —Generic Models for Use in Assessing the Impact of Discharges of Radioactive Substances to the Environment [8];—Regulatory Control of Radioactive Discharges to the Environment [9];—Environmental and Source Monitoring for Purposes of Radiation Protection [10]; and —Dispersion of Radioactive Material in Air and Water and Consideration of Population Distribution in Site Evaluation for Nuclear Power Plants [11],Applicable national and other international regulations which were used to conduct the EIA were also considered during the review, e.g., European Council Directive on the assessment of the effects of certain public and private projects on the environment [12],1.2.2ParticipantsThe Mission was carried out by a team of six international experts from Argentina. Austria. France and 2 from the UK. whose expertise included the following fields:—radioactive discharges and their behaviour in the environment;—assessment of doses due to exposure to radioactive materials in the environment and radiological risk assessment;—nuclear accident analysis (accident selection and source term characterization);—radioactive waste management; and—hydrogeology/hydrology and meteorology in connection with radiological impact.The experts nominated by the IAEA were:1Cosponsored by the IAEA, the World Health Organization (WHO), the Pan American Health Organization (PAHO), the International Labour Organization (ILO), the Food and Agric ulture Organization of the United Nations (FAO), the Nuc lear Energy Agenc y of the Organization for Ec onomic Cooperation and Development (OECD/NEA), the European Atomic Energy Community (EURATOM), the International Maritime Organization (IMO) and the United Nations Environment Programme (UNEP).2Cosponsored by the IAEA, WHO, PAHO, ILO, FAO and OECD/NEA.3The ICRP is the independent non-governmental organization whic h defines the "system for radiation protection" on whic h international standards for radiation protection (as are those from the IAEA) and many national standards are founded.—— Mr Justin Smith, Environmental Assessments Department, Centre for Radiation, Chemical and Environmental Hazards, Radiation Protection Division, Health Protection Agency, UK;—— Mr Brian Turland, Team Leader of the Reactor Analysis, Nuclear Services, CivilNuclear Business Group, Serco Technical and Assurance Services, UK;—— Mr Neil Harman, Decommissioning and Safety Management Department, Civil Nuclear Business Group, Technical and Assurance Services, Serco Limited, UK;—— Mr Peter Hacker, Senior Hydrogeologist, formerly Austrian Research Centers Seibersdorf GmbH (ARCS), Austria;——Mr Michel Chartier, Institut de Radioprotection et de Surete Nucleaire , Deputy Head of the Department Environment and Intervention, France; and——Mr Diego Telleria, Assessment and Management of Environmental Releases Unit, Division ofRadiation, Waste and Transport Safely, IAEA (Mission Coordinator).A brief description of the professional backgrounds of the nominated experts is presented in Appendix I.1.2.3Scope of the reviewClearly, since the IAEA is concerned with the effects of ionizing radiation, the main focus of the Review Mission was on the radiological impacts included in the EIA Report, although the general aspects and other enviromnerital impacts were considered where possible.In addition to the review of the EIA Main Report, some specific topics with significant influence in the EIA results from the radiological point of view were analyzed in more detail by the experts, in accordance with their main fields of expertise.Due to the programmed amount of time for the review and the substantial extent of the report, it was not in the objectives of the Mission to carry out detailed independent studies or recalculations on any of the data presented. The conclusions of the Mission have therefore been made on the basis that a ll the statements, information, calculations and data presented in the EIA Report are correct and accurately reflect the situation in the Project.1.2.4Work doneThe work done during the Mission in Lithuania consisted of an intensive review of the EIA Report and related technical references, presentations by representatives of the responsible organizations in Lithuania and their teams of national and international consultants, and subsequent interviews to clarify or expand on the information as required.Subsequent to this work, a preliminary report was prepared and presented for consideration to the counterparts in Lithuania during a final meeting before closing the Mission. The preliminary report was the basis for the preparation of the present Mission Report.Within the period of preparation of this Mission Report, Poyry-LEI and VAE prepared answers to all of the preliminary comments of the experts of the IAEA Mission. In order to complement the results of the IAEA Mission to Lithuania the answers prepared by Poyry-LEI and VAE are included in this report (Appendix II). Notwithstanding the fact that a number of the answers provided seem to address the comments made by the IAEA team of experts, the present report does not include an evaluation of those answers in detail.A new version of the EIA Report, which will include additional information and if deemed necessary the amendments made according to the IAEA experts' comments, will be available in due course.However, it is important to note that the ongoing discussions and additional work which is taking place in Lithuania to improve the EIA Report in future versions, does not affect the main conclusion of the Mission regarding the validity of the EIA Report reviewed (Version, 22 December 2008) and the implication for continuing with the decision making process regarding the feasibility to construct the new NPP.1.2.5Structure of the Mission ReportAfter the introduction in Section 1, the IAEA Mission Report presents the main conclusion from the Mission in Section 2. Section 3 presents the findings and conclusions which are the basis for the main conclusion and, when possible, gives recommendations on how to address the topics needing additional work. These findings, conclusions and recommendations cover both general and specific issues. A set of additional observations by the international experts are also included in Section 4. The appendices of the document include complementary information, including the above mentioned answers prepared by Poyry-LEI and VAE to the preliminary comments from the IAEA team of experts during the Mission in Lithuania (see explanations in Section 1.2.4). For later reference, the paragraphs under Section 3 are numbered.2. MAIN CONCLUSIONThe conclusion of the Mission of international experts organized by the IAEA is that the EIA Report, New Nuclear Power Plant in Lithuania - Version, 22 December 2008, provides enough information, analysis and conclusions for a project at this stage, to make an appropriate decision in order to proceed to the subsequent steps in the process to build a new NPP in Lithuania, provided andconsidering that:—this is one of the early stages of a decision process;—a s indicated, the proposed NPP would be one of the considered Generation III/III+ NPPs; —subsequent more detailed and more specific studies (like tho&f for the future Siting Report and Safety Report) will be carried out on relevant aspects such as nuclear safety and radiological protection of the public and environment, amongst others; and—the licensing by the nuclear regulatory body and other competent authorities will be in accordance with national and international standards and recommendations, as part of the final stages of this process.Despite the main conclusion given above, a number of areas where the EIA Report could need improvement were identified during the appraisal the Mission. It is recommended that the comments provided by the Mission relating to these areas be considered in the subsequent stages of the process. These comments are included in the following Sections of this report.3. FINDINGS, CONCLUSIONS AND RECOMMENDATIONS3.1Scope and format of the EI A Report(1)The Report states that it was prepared in accordance with the Law on Environmental Impact ofProposed Economic Activity of the Republic of Lithuania (State Journal, 2005. No. 84-3105) and this law implements European Union (EU) Directive 85/337/EEC and amendments. The EU has produced Guidance on Reviewing Environmental Impact Statements (EIS) [13] and, consequently, in addition to the IAEA Safety Standards and guidance used as a reference covering the radiological impact elements, the above mentioned EU Guidance was used by the Mission as a guide in reviewing the Report.(2)There is neither a clear definition of the specific objectives of this particular study nor anoverall conclusion to the EIA Report discussing whether its objectives have been met (i.e., there are no chapters entitled 'Objectives of this EIA Report' and 'Conclusions of this EIA report').The objectives stated within the text of the Report are those generally defined under the Lithuanian Law for any environmental impact assessment. Specific objectives of this particular EIA (for example, 'to fulfil the legal requirements by showing that the impacts from the construction, operation, and decommissioning of any of the available Generation III/III+ technologies NPP considered would be acceptable at the site selected', etc.) and the consequent discussion of its fulfilment should be included.(3)The discussion of the reasons previously considered in Lithuania, which made the nuclearoption valid and. in principle, convenient to be located in one of the proposed sites (which, from many perspectives, it could be considered as a single site) could be given more prominence.(4)Some of the detailed objectives which could be interpreted from the EIA Report, as well asthose from the presentations made during the IAEA Mission, could be a little too ambitious at this stage. For example, some of the studies to obtain definitive parameters (like lake temperature) would benefit from more information and further investigation before final conclusions are reached. The same applies to some of the conclusions drawn from the radiological impact assessment because the radiological parameters used for the analysis will be strongly dependent on the selected technology. A less prescriptive view might therefore be more appropriate at this stage.(5)The Executive Summary (page 15 of the EIA Report) is more of an introduction than an'Executive Summary', which should be capable of being read as a stand-alone document; it should therefore be expanded to include, for example, summaries of the results of the studies carried out (maps, tables, figures, etc.), and the conclusions.(6)The description of the EIA procedure (Chapter 2) should be more detailed and discuss the othersteps in the process, for example:—selection of the reactor technology;—selections of other options for the Project such as siting and cooling technologies; —revision of the EIA Report in light of the selected option and its consideration for the specific reactor design, number of reactors, and other technologies selected; and—the Article 37 submission.(7)As it stands, the Report implies that this is the final step and, if approved, no further submittalsor approvals would be required. This confusion is compounded by the lack of an overall conclusion and a clear statement of the objectives as mentioned above.(8)The report does not include a Non-Technical Summary which is a requirement of the EUDirective and presumably the Lithuanian Law. According to the previously mentioned EIS Guidance [13]，such a Summary should:—provide a concise but comprehensive description of the Project, its environment, the effects of the Project on the environment and the proposed mitigation;—highlight any significant uncertainties about the Project and its environmental effects; —explain the development consent process for the Project and the role of EIA in this process; —p r o v id e an overview of the approach to the assessment;—b e written in non-technical language, avoiding technical terms, detailed data and scientific discussion; and—be comprehensible to a lay members of the public.Without this, the Project may be open to challenge at a later date using the argument that since no non-technical summary was provided, it was not possible to fully understand the Project and therefore that the opportunity to object was denied.3.2Radiological impact from discharges during normal operation3.2.1Principal conclusion(9)Methods which have been used to assess the impact of routine discharges are robust standardmethods which are relevant for the objectives of the EIA Report. The application of these methods to the anticipated discharges of the new NPP is supported by scientific peer- reviewed publications. Although the verification of the calculations was not carried out by the experts, as this was beyond the aim of the IAEA Mission, experts did not identify evident inconsistencies in the order of magnitude of the assessed dose and express a general agreement on the methods used for the impact assessment of routine discharges at this stage of the project.(10)The following comments should be considered in the subsequent developments of the EIAprocess or more detailed future assessments such as a Safety Assessment Report:3.2.2Comments(11)For the local Lithuanian population, doses to theoretical critical groups are based on theassessment methodology from the LAND42 report and supporting documents. There appear to be many assumptions about input data, such as habit data, that are not based on survey information. One supporting paper makes reference to suburban gardens close to the lake, but it is not clear where these are located or if they actually exist.(12)While it is understandable that the use of the LAND standard ensures compliance with nationalrequirements, as mentioned, the associated tools for modelling are only applicable for critical groups, which are 'tools' to control discharges from nuclear installations more than to assesses the general impact. Therefore, the EIA Report should cover additional groups of individuals that better represent more typical members of the population, this being the objective of the EIA Report. It might be worth reconsidering the use of the term 'critical group' and if it could be replaced by a better expression with fewer connotations (such as •reference group‟）.Alternatively, a footnote could be included to explain that in radiological protection terminology …critical group' has a well defined meaning which does not necessarily mean these people are in critical situations. In addition, accepting that the LAND based calculations must6be kept in the report, it is suggested that firstly (and separately) IAEA [8] is used for all the dose calculations and, where possible, survey data. Complete tables of annual dose as a function of distance and direction up to 20-50 km could then be presented. Subsequent to this, the results of LAND could be presented under another subheading, for instance …compliance with n ational regulations'.(13)It would be useful to include a table with relevant habit data of the population for all theconsidered pathways and age groups. These might be the results of surveys or proposals from literature (i.e.，…Generic Models for Use in Asses sing the Impact of Discharges of Radioactive Substances to the Environment' [8] or other), but it is important that the external observer can see these assumptions.(14)The approach in [8] is also used for particular critical groups, e.g., individual spending largeamounts of time near the site fence. Habit data from [8] are quite conservative (see Paragraph12 above).(15)Impact assessment of routine discharges includes: (a) a dose assessment for the critical groupusing the Lithuanian normative method; (b) a dose assessment for other Lithuanian groups of population for airborne discharges at the border of the denominated Sanitary Protection Zone (SPZ) using the IAEA methodology [8]; and (c) a dose assessment for population groups in other countries using the IAEA methodology in [8] for airborne discharges) and an adapted PC CREAM method for liquid discharges. This might be confusing for non-experts in terms of interpretation. The reasons for these various approaches should be clarified and the differences in models should be explained and appraised (for instance, there are differences in the exposure pathways taken into account by the various methods).(16)Levels of discharge used to assess the radiological impact of normal operations of the variousreactor technologies are derived using numerical methods which may include significant uncertainties (e.g., overestimations) and do not necessarily represent the real future discharges for each reactor type (e.g., the implementation of optimised effluent treatment systems may reduce discharged activities significantly for some nuclides). The discharges displayed in Table7.1-34 are assumed to be an envelope of foreseen discharges (although this is not clearly provenin the report, but nonetheless a reasonable approach at this stage). The dose assessment results are therefore an indication of the potential (probably maximized) impact of the routine discharges for each reactor type, but the assessed impact is not accurate enough to be an input parameter for the choice of the reactor technology. The range of doses for the various reactor types given in Table 7.10-29 is only indicative. The report should make clear that the results of the impact assessment of the routine discharges shown in the report cannot be used to rank reactor performance at this stage.(17)The report should make clear that authorised discharge limits may well be set by Lithuaniancompetent authorities at different levels from the discharges displayed in Tables 7.1-34 and7.2-11, although these discharge data are assumed to be the envelope of routine discharges foreach reactor technology.(18)The EIA Report (page 437) indicates that the dose to the critical group should take into accountthe committed effective doses per unit intake by inhalation of various age groups (Lithuanian Hygiene Standard HN 73:2001). During the discussions held as part of this Mission, it was mentioned that different age groups were considered. However, this is not clearly presented in the EIA Report; for instance, the report does not indicate whether only adult farmers have been considered or also their families. The Report should give appropriate information on the way in which the impact of routine discharges has been assessed on various age groups and, as necessary, on the most exposed age group for the various critical groups considered.7(19)Potential changes to the use of the lake and surrounding area might be considered as these maylead to unexpected exposure pathways.(20)The Report would benefit from a better description of some of the radiological impactassessment methods (e.g., the LAND methodology) and discussions on the uncertainties and degree of conservatism (use of existing references to improve descriptions). The main features of the methods, as well as the values and reference of the main input data (e.g., dose coefficients, food consumption rates, etc.) should be detailed. In particular, the reason why the methods are considered conservative should be fully explained (e.g., assessment at the location of maximum deposition, food consumption rates twice the average Lithuanian food consumption rates, protection by buildings not taken into account, etc.). Also, the use of local/site specific or generic data should be made clear.(21)Five 'critical groups' have beem defined (farmers, gardeners, fishermen, local resident whopasses the SPZ, local resident at the border of the SPZ). This is intended to cover bounding situations in relation with radiological impact of routine discharges. On the other hand, this gives no indication of the impact on ihe general population which should be even lower. An assessment of the radiological impact to a broader group of the population living in the nearest large urban zones (e.g., Visaginas, Daugavpils, etc.) would be useful as a complementary result.3.2.3Transboundary considerations(22)For waterborne discharges the PC CREAM methodology is used although it has been adaptedfor the local conditions at Ignalina (Lithuania) and details of this process are not always clear.(23)For atmospheric discharges the approach in [8] is used which is likely to be conservative.However, survey data are unavailable for Belarus and therefore it is difficult to put these dose estimates into context.(24) A useful way of demonstrating the relative impacts on the host country and neighbouring stateswould be to calculate the collective dose from normal operations in each state, this can then be weighed against the relative benefits to each state accruing from the Project.8。