EN ISO 23210-2009 en Stationary source emissions - Determination of PM10 PM2 5 mass concentration in flue gas - Measurement at low concentrations by use of impactors《固定污染源排放 烟气中钷10.pdf

1、BS EN ISO23210:2009ICS 13.040.40NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDStationary sourceemissions Determination ofPM10/PM2,5 massconcentration in fluegas Measurement atlow concentrations byuse of impactors (ISO23210:2009)This British Standardwas publish

2、ed under theauthority of the StandardsPolicy and StrategyCommittee on 31 August2009 BSI 2009ISBN 978 0 580 65743 6Amendments/corrigenda issued since publicationDate CommentsBS EN ISO 23210:2009National forewordThis British Standard is the UK implementation of EN ISO 23210:2009.The UK participation i

3、n its preparation was entrusted to TechnicalCommittee EH/2/1, Stationary source emission.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for

4、its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 23210August 2009ICS 13.040.40English VersionStationary source emissions - Determination of PM10/PM2,5mass concentration in flue gas - Measurem

5、ent at lowconcentrations by use of impactors (ISO 23210:2009)missions de sources fixes - Dtermination de laconcentration en masse de PM10/PM2,5 dans les effluentsgazeux - Mesurage des faibles concentrations au moyendimpacteurs (ISO 23210:2009)Emissionen aus stationren Quellen - Ermittlung derMassenk

6、onzentration von PM10/PM2,5 im Abgas -Messung bei niedrigen Konzentrationen mit Impaktoren(ISO 23210:2009)This European Standard was approved by CEN on 20 June 2009.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStanda

7、rd the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, G

8、erman). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech R

9、epublic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE

10、NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 23210:2009: EBS EN ISO 23210:2009EN ISO 23210:2009 (E) 3 Foreword This document

11、(EN ISO 23210:2009) has been prepared by Technical Committee ISO/TC 146 “Air quality“ in collaboration with Technical Committee CEN/TC 264 “Air quality”, 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 iden

12、tical text or by endorsement, at the latest by February 2010, and conflicting national standards shall be withdrawn at the latest by February 2010. Attention 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 he

13、ld responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finlan

14、d, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 23210:2009 has been approved by CEN as a EN IS

15、O 23210:2009 without any modification. BS EN ISO 23210:2009ISO 23210:2009(E) ISO 2009 All rights reserved iiiContents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 2 4 Symbols and abbreviated terms . 3 5 Principle of the method 5 6 Specification of t

16、he two-stage impactor. 8 7 Sampling train . 11 8 Preparation, measurement procedure and post-treatment 13 9 Calculation of the results. 17 10 Performance characteristics . 17 11 Reporting . 20 Annex A (normative) Calculation of the sample volumetric flow rate of the impactor. 21 Annex B (informative

17、) General equations concerning impaction theory . 28 Annex C (informative) Results of method validation 30 Annex D (informative) Influence of variations in the flue gas temperature and flue gas composition on the Reynolds number . 36 Annex E (informative) Entry nozzle 38 Annex F (informative) Equipm

18、ent list. 39 Annex G (normative) Determination of a representative sampling point. 41 Bibliography . 42 BS EN ISO 23210:2009ISO 23210:2009(E) iv ISO 2009 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO m

19、ember 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 established has the right to be represented on that committee. International organizations, governm

20、ental 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. International Standards are drafted in accordance with the rules given in the ISO/IEC Dir

21、ectives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bo

22、dies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 23210 was prepared by Technical Committee ISO/TC 146, Air quality, Subcommit

23、tee SC 1, Stationary source emissions. BS EN ISO 23210:2009ISO 23210:2009(E) ISO 2009 All rights reserved vIntroduction In order to quantify the amount of PM10and PM2,5particles in stationary source emissions or to identify the contribution sources of PM10and PM2,5in ambient air, it is necessary to

24、measure fine particulate matter in the flue gas of industrial sources. This International Standard describes a measurement method for the determination of mass concentrations of PM10and PM2,5emissions, which realizes the same separation curves as those specified in ISO 7708:1995 for PM10and PM2,5in

25、ambient air. The method is based on the principle of impaction. During sampling, the particle fraction is divided into three groups with aerodynamic diameters greater than 10 m, between 10 m and 2,5 m and smaller than 2,5 m. The measurement method allows the simultaneous determination of concentrati

26、ons of PM10and PM2,5emissions. The method is designed for stack measurements at stationary emission sources. The contribution of stationary source emissions to PM10and PM2,5concentrations in ambient air can be classified as primary and secondary. Those emissions that exist as particulate matter with

27、in the stack gas and that are emitted directly to air can be considered “primary”. Secondary particulate consists of those emissions that form in ambient air due to atmospheric chemical reactions. The measurement technique in this International Standard does not measure the contribution of stack emi

28、ssions to the formation of secondary particulate matter in ambient air. This International Standard includes normative references to ISO 12141:2002. The corresponding requirements in ISO 12141:2002 are identical to those in European Standards EN 13284-1:2001 and EN 15259:2007. BS EN ISO 23210:2009BS

29、 EN ISO 23210:2009INTERNATIONAL STANDARD ISO 23210:2009(E) ISO 2009 All rights reserved 1Stationary source emissions Determination of PM10/PM2,5mass concentration in flue gas Measurement at low concentrations by use of impactors 1 Scope This International Standard specifies a standard reference meth

30、od for the determination of PM10and PM2,5mass concentrations at stationary emission sources by use of two-stage impactors. The measurement method is especially suitable for measurements of mass concentrations below 40 mg/m3as half-hourly averages in standard conditions (273 K, 1 013 hPa, dry gas). I

31、t is an acceptable method for the measurement in the flue gas of different installations, such as cement and steel production plants, as well as combustion processes. This International Standard is not applicable to the sampling of flue gases that are saturated with water vapour. This International

32、Standard is not applicable where the majority of the particles are likely to exceed PM10, for example, in the case of raw gases or plant operating failures. NOTE 1 Measurements of particulate concentrations higher than 40 mg/m3, as a half-hourly average in standard conditions (273 K, 1 013 hPa, dry

33、gas), can lead to overloading of the collecting plates and backup filters and also could result in shorter sampling times. NOTE 2 The collecting plates and backup filters can be used for further chemical analysis. This International Standard cannot be used for the determination of the total mass con

34、centration of dust. NOTE 3 For data assessment purposes, it can be useful to perform measurements of total particulate matter in parallel to the PM10and PM2,5measurements. This International Standard describes the design, use and theory of round-nozzle impactors. It does not exclude other types of i

35、mpactors, provided these systems meet the performance criteria specified in this International Standard in a validation of the impactor performed by an independent testing laboratory. 2 Normative references The following referenced documents are indispensable for the application of this document. Fo

36、r dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 7708:1995, Air quality Particle size fraction definitions for health-related sampling ISO 12141:2002, Stationary source emissions Determin

37、ation of mass concentration of particulate matter (dust) at low concentrations Manual gravimetric method ISO 20988:2007, Air quality Guidelines for estimating measurement uncertainty BS EN ISO 23210:2009ISO 23210:2009(E) 2 ISO 2009 All rights reserved3 Terms and definitions For the purposes of this

38、document, the following terms and definitions apply. 3.1 Flow-related terms 3.1.1 aerodynamic diameter diameter of a sphere of density 1 g/cm3with the same terminal velocity due to gravitational force in calm air as the particle, under prevailing conditions of temperature, pressure and relative humi

39、dity NOTE Adapted from ISO 7708:1995, 2.2. 3.1.2 cut-off diameter aerodynamic diameter where the separation efficiency of the impactor stage is 50 % 3.1.3 PM10particles which pass through a size-selective inlet with a 50 % efficiency cut-off at 10 m aerodynamic diameter NOTE PM10corresponds to the “

40、thoracic convention” as defined in ISO 7708:1995, Clause 6. 3.1.4 PM2,5particles which pass through a size-selective inlet with a 50 % efficiency cut-off at 2,5 m aerodynamic diameter NOTE PM2,5corresponds to the “high-risk respirable convention” as defined in ISO 7708:1995, 7.1. 3.1.5 Reynolds numb

41、er dimensionless parameter describing a flow 3.1.6 Stokess number dimensionless instrument-specific quantity NOTE See B.2. 3.1.7 Cunningham factor correction factor taking into account the change in the interaction between particles and the gas phase NOTE Stokess law is based on the assumption that

42、the relative gas velocity at the particle edge equals zero. This assumption is not valid for particle sizes close to the mean free path length. Such particles cannot move continuously due to collisions with particles and gas atoms. In this case, Stokess law has to be amended by a correction factor,

43、i.e. the Cunningham factor. This factor only depends on the mean free path length and the particle diameter. 3.1.8 Sutherland constant constant characteristic of a gas used for calculating the dependence of the viscosity of a gas on its temperature 3.1.9 aerosol suspension in a gaseous medium of sol

44、id particles, liquid particles or solid and liquid particles having a negligible falling velocity ISO 4225:1994, 3.2 BS EN ISO 23210:2009ISO 23210:2009(E) ISO 2009 All rights reserved 33.2 Instrument-related terms 3.2.1 filter set separator consisting of two collecting plates and a backup filter 3.2

45、.2 collecting plate plane filter used for particle collection by impaction 3.2.3 backup filter plane filter used for collection of the PM2,5particle fraction 3.2.4 collecting plate holder support of the collecting plate 3.2.5 backup filter holder punched plate as support of the backup filter 3.2.6 d

46、iffuser conical part in front of the nozzle plates to avoid stall 3.3 Sampling-related terms 3.3.1 measurement site sampling site place on the waste gas duct in the area of the measurement plane(s) consisting of structures and technical equipment NOTE The measurement site consists, for example, of w

47、orking platforms, measurement ports and energy supply. 3.3.2 measurement section region of the waste gas duct which includes the measurement plane(s) and the inlet and outlet sections 3.3.3 measurement plane sampling plane plane normal to the centreline of the duct at the sampling position 4 Symbols

48、 and abbreviated terms A separation efficiency BF backup filter c1,iith concentration value of the first measuring system c2,iith concentration value of the second measuring system C Cunningham factor BS EN ISO 23210:2009ISO 23210:2009(E) 4 ISO 2009 All rights reservedCP2 collecting plate of the sec

49、ond impactor stage daeaerodynamic diameter deequivalent volumetric diameter dinimpactor nozzle diameter dnozzleentry nozzle diameter d50cut-off diameter E collection efficiency fnmass concentration of water vapour in standard conditions and with dry gas g acceleration due to gravity i series element number, i = 1, 2, 3, m j series element number, j = 1, 2, 3, n linimpactor nozzle length m sampled mass m(BF) particle mass on the backup filter m(CP2) particle mass on the collecting plate of the second impactor stage M molar