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BRITISH STANDARD BS EN 147902005 Stationary source emissions Determination of the water vapour in ducts The European Standard EN 147902005 has the status of a British Standard ICS 11.040.40 BS EN 147902005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 16 January 2006 BSI 16 January 2006 ISBN 0 580 46977 8 National foreword This British Standard is the official English language version of EN 147902005. EH/2, Air quality, to Subcommittee EH/2/1, Stationary source emissions, which has the responsibility to aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests ined; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross- references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 42, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments The UK participation in its preparation was entrusted by Technical Committee 标准分享网 w w w .b z f x w .c o m 免费下载 w w w . b z f x w . c o m EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14790 November 2005 ICS 11.040.40 English Version Stationary source emissions - Determination of the water vapour in ducts Emissions de sources fixes - Dtermination de la vapeur deau dans les conduits Emissionen aus stationren Quellen - Bestimmung von Wasserdampf in Leitungen This European Standard was approved by CEN on 30 September 2005. 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 such national standards may be obtained on application to the Central Secretariat 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 own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre rue de Stassart, 36 B-1050 Brussels 2005 CENAll rights of exploitation in any and by any means reserved worldwide for CEN national Members. Ref. No. EN 147902005 E w w w . b z f x w . c o m EN 147902005 E 2 Contents Page Foreword ..........................................................................................................................................................4 1 Scope...................................................................................................................................................5 2 Normative references .........................................................................................................................5 3 Terms and definitions.........................................................................................................................6 4 Principle...............................................................................................................................................9 4.1 General ................................................................................................................................................9 4.2 Adsorption or condensation/adsorption .............................................................................9 4.3 Temperature ..........................................................................................................................9 5 Apparatus..........................................................................................................................................10 5.1 General ..............................................................................................................................................10 5.2 Sampling probe.................................................................................................................................10 5.3 Filter housing ....................................................................................................................................10 5.4 Particle filter......................................................................................................................................11 5.5 Trapping unit.....................................................................................................................................11 5.6 Cooling System optional................................................................................................................11 5.7 Sampling pump.................................................................................................................................11 5.8 Gas volume meter.............................................................................................................................11 5.9 Barometer..........................................................................................................................................12 5.10 Balance..............................................................................................................................................12 5.11 Temperature measurement..............................................................................................................12 6 Measurement procedure ..................................................................................................................12 6.1 General requirements.......................................................................................................................12 6.2 Preparation and installation of equipment......................................................................................12 6.2.1 Sampling location.............................................................................................................................12 6.2.2 Sampling point..................................................................................................................................13 6.2.3 Assembling the equipment ..............................................................................................................13 6.3 Leak test ............................................................................................................................................13 6.4 Pering of the sampling..............................................................................................................14 6.4.1 Introduction of the probe in the duct...............................................................................................14 6.4.2 Sampling............................................................................................................................................14 6.5 Repeatability of the weighing...........................................................................................................14 6.6 Procedure for gas streams saturated with water droplets present ............................................15 7 Determination of the characteristics of the sampling and analysis...............................15 7.1 Introduction.......................................................................................................................................15 7.2 Relevant perance characteristics of the and perance criteria .........................15 7.3 Establishment of the uncertainty budget........................................................................................16 7.4 Equivalency with an alternative .........................................................................................17 8 uation of the in the field...............................................................................................17 9 Water vapour determination.............................................................................................................18 10 Report ................................................................................................................................................20 Annex A normative Determination of water vapour concentration for water saturated gas, at Pstd 101,325 kPa.....................................................................................................................................21 Annex B inative Type of sampling equipments .................................................................................25 Annex C inative Example of assessment of compliance of reference for water vapour with requirements on emission measurements.................................................................26 C.1 General ..............................................................................................................................................26 C.2 Process of uncertainty estimation...................................................................................................26 标准分享网 w w w .b z f x w .c o m 免费下载 w w w . b z f x w . c o m EN 147902005 E 3 C.2.1 Determination of the model equation..............................................................................................26 C.2.2 Quantification of uncertainty components .....................................................................................26 C.2.3 Calculation of the combined uncertainty........................................................................................26 C.3 Specific conditions in the field ........................................................................................................27 C.4 Perance characteristics of the ...................................................................................28 C.5 Calculation of standard uncertainty of the concentration.............................................................28 C.5.1 Model equation and application of the rule of the uncertainty propagation ................................29 C.5.2 Results of standard uncertainties calculations..............................................................................33 C.5.3 Estimation of the combined uncertainty.........................................................................................36 Annex D inative uation of the in the field ......................................................................37 D.1 General ..............................................................................................................................................37 D.2 Characteristics of installations........................................................................................................37 D.3 Repeatability and reproducibility in the field..................................................................................38 D.3.1 Repeatability......................................................................................................................................39 D.3.2 Reproducibility..................................................................................................................................40 Annex ZA inative Relationship between this European Standard and the Essential Requirements of EU Directive.........................................................................................................41 Bibliography...................................................................................................................................................42 w w w . b z f x w . c o m EN 147902005 E 4 Foreword This European Standard EN 147902005 has been prepared by Technical Committee CEN/TC 264 “Air qualilty”, the secretariat of which is held by DIN. 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 May 2006, and conflicting national standards shall be withdrawn at the latest by May 2006. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directives. For relationship with EU Directives, see inative Annex ZA, which is an integral part of this European Standard. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. 标准分享网 w w w .b z f x w .c o m 免费下载 w w w . b z f x w . c o m EN 147902005 E 5 1 Scope This European Standard describes the condensation/adsorption technique, including the sampling system, to determine the water vapour concentration in the flue gases emitting to atmosphere from ducts and stacks. This technique is usually used all over Europe for water vapour monitoring. However to be implemented as the Standard Reference SRM, the user has to demonstrate that the perance characteristics of the are better than the perance criteria defined in this European Standard and that the overall uncertainty of the is less than 20 of the measured value. This European Standard as the Standard Reference SRM is u
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