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1、BRITISH STANDARD BS EN 13526:2002 The European Standard EN 13526:2001 has the status of a British Standard ICS 13.040.40 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 13526:2002 This British Standard, having been prepared under the direction of the Health and Environme
2、nt Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 24 January 2002 BSI 24 January 2002 ISBN 0 580 38935 9 National foreword This British Standard is the official English language version of EN 13526:2001. The UK participation
3、in its preparation was entrusted by Technical Committee EH/2, Air quality, to Subcommittee EH/2/1, Stationary source emissions, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standard
4、s which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard d
5、oes not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsi
6、ble European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title
7、page, pages 2 to 22, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13526 November 2001 ICS 13.040.40
8、English version Stationary source emissions - Determination of the mass concentration of total gaseous organic carbon in flue gases from solvent using processes - Continuous flame ionisation detector method Emissionen aus stationren Quellen - Bestimmung der Massenkonzentration des gesamten gasfrmige
9、n organisch gebundenen Kohlenstoffs in Abgasen von Prozessen, bei denen Lsungsmittel eingesetzt werden - Kontinuierliches Verfahren unter Verwendung eines Flammenionisationsdetektors This European Standard was approved by CEN on 29 September 2001. CEN members are bound to comply with the CEN/CENELEC
10、 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 Management Centre or to any CEN me
11、mber. 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 Management Centre has the same status as the official versions. CEN members
12、 are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION
13、EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2001 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13526:2001 E EN 13526:2001 (E) 2 Contents page Foreword3 1 Scope3 2 Normative references4 3 T
14、erms and definitions4 4 Principle6 5 The apparatus and gases8 6 Measurement procedure10 Annex A (informative) Measurement uncertainty and associated statistics13 Annex B (normative) Determination of the performance characteristics of a FID15 Annex C (informative) Published response factors for typic
15、al components in flue gases of waste incineration plants and in exhaust air from non-thermal plants17 Annex D (informative) Safety measures19 Annex E (informative) Recommended minimum operational requirements for long term continuous monitoring applications20 Annex F (informative) Calculation of tot
16、al organic carbon mass concentration from volume concentrations21 Bibliography22 EN 13526:2001 (E) 3 Foreword This European Standard has been prepared by 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 natio
17、nal standard, either by publication of an identical text or by endorsement, at the latest by May 2002, and conflicting national standards shall be withdrawn at the latest by May 2002. This European Standard has been prepared under a mandate given to CEN by the European Commission and European Free T
18、rade Association. The annex B is normative. The annexes A, C, D, E and F are informative. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finla
19、nd, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. 1 Scope This European Standard specifies a set of minimum performance requirements for an instrument using flame ionisation detection, together with pro
20、cedures for its calibration and operation, for the measurement of the mass concentration of total gaseous organic carbon (TOC) in flue gases. This European Standard is suitable for the measurement of gaseous or vapour phase TOC emissions from Solvent Using Processes. NOTE 1 See Council Directive 199
21、9/13/EEC. The results obtained using this standard are expressed in milligrams per cubic metre as total carbon (mg/m3). This standard is suitable for the measurement of concentrations from 20 mg/m3 to 500 mg/m3 but can be used at lower concentrations. NOTE 2 By its nature a flame ionisation detector
22、 (FID) can also be used to measure higher concentrations. The method specified in this European Standard can be used as a reference method or, with suitable minimum operational requirements, for continuous monitoring. It can also be used for the calibration of automated measuring systems. An indicat
23、ion of the uncertainty of the measurement is shown in annex A. EN 13526:2001 (E) 4 2 Normative references This European Standard incorporates, by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text, and the public
24、ations are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including ame
25、ndments). EN 13649Stationary source emissions - Determination of the mass concentration of individual gaseous organic compounds Activated carbon and solvent desorption method. ISO 5725-1Accuracy (trueness and precision) of measurement methods and results Part 1: General principles and definitions. I
26、SO 6879Air quality - Performance characteristics and related concepts for air quality measuring methods. ISO 9169Air Quality Determination of performance characteristics of measurement methods. 3 Terms and definitions For the purpose of this CEN Standard, the following definitions apply. 3.1 combust
27、ion air air supply used for the combustion of fuel gas in an instrument using flame ionisation detection 3.2 complimentary gas component of a calibration gas mixture which completes a calibration gas mixture 3.3 detection limit minimum concentration of a substance which produces an observable respon
28、se, as detailed in annex B and referred to in ISO 9169 3.4 dilution gas gas used to dilute sampled flue gas to prevent water condensation 3.5 flame ionisation detector (FID) instrument using flame ionisation detection EN 13526:2001 (E) 5 3.6 flue gas product from a combustion or incineration process
29、 containing gaseous and particulate components 3.7 fuel gas gas of known composition used to maintain the flame of the FID 3.8 mass concentration of gaseous total organic carbon quotient of the mass of total organic carbon to the volume of the dry gas under specified reference conditions of temperat
30、ure and pressure, normally expressed in milligrams per cubic metre as total carbon (mg/m3) 3.9 range set of values for a measurand for which the error of a measuring instrument is intended to lie within specified limits 3.10 response factor dimensionless quotient of the response of the FID with any
31、carbon based compound or compounds to its response to propane, in each case referred to the number of carbon atoms of the molecule 3.11 response time time which elapses between the moment when a change is produced and the moment when the instrument response reaches a value of 90 % of the final chang
32、e in instrument response as a consequence of a stepwise change in the total organic carbon concentration 3.12 span gas gas used to adjust and check one point on the calibration curve 3.13 total organic carbon (TOC) by convention the total gaseous organic carbon which is measured by the FID and expre
33、ssed as mg/m3 3.14 zero gas gas used to adjust and check the zero point on a calibration curve EN 13526:2001 (E) 6 4 Principle 4.1 General There are two elements to the extractive TOC analytical system described in this standard. They are the FID and the associated sampling device. 4.2 Flame ionisat
34、ion detector The measurement principle is the determination of an ionisation current resulting from the combustion of organic compounds in a hydrogen flame. This current depends on the number of C-atoms of organic compounds burning in the fuel gas flame, the form of bonding (straight chain or branch
35、ed chain) and of bonding partners. The response factor is a function of the specific design of the detector and the adjusted operating conditions. The main advantage of the FID is that it responds strongly to organic carbon containing components and less to inorganic flue gas components (such as CO,
36、 CO2, NO, H2O). FIDs require a fuel gas and combustion air. EN 13526:2001 (E) 7 1 2 3 3 4 5 6 7 8 9 10 11 12 13 14 15 16 DC Voltage 1. Fuel gas9. Back-pressure regulator 2. Combustion air10. By-pass 3. Flow regulator11. Meter 4. Fine dust filter12. Nozzle 5. Sampling gas pump13. Combustion chamber 6
37、. Sample gas14. Flame 7. Heated housing15. Gas outlet 8. Pressure gauge16. Electrode Figure 1: Diagram of the FID measuring principle (example) A number of different instrument configurations exist. Figure 1 indicates the principle whereby in the detector a sample gas is fed into a hydrogen flame ac
38、ross which a DC electrical potential is placed. The introduction of the sampled gas causes a specific ionisation current to flow, which is measured using suitable equipment. Defined test gases are required to determine the response factors. These can be produced by a number of methods including stat
39、ic methods (with gas collectors or direct injection) or dynamic methods (e.g. vapour pressure method or certified test gases from compressed gas bottles). The span of the instrument shall be adjusted with propane span gas for which the response factor, defined in this standard, has been set at 1. 4.
40、3 Sampling and sampling device The following principles shall be followed during sampling: -sampling is the process of extracting from a large quantity of flue gas a small portion which is truly representative of the composition of the main gas stream; - the sampling device is equipped with a filter
41、 to remove fine particles which could clog the burner. Condensation downstream of the filter shall be avoided, two methods can be used: - a line heated up to the inlet of the analyser, EN 13526:2001 (E) 8 - a suitable dynamic dilution device. 5 The apparatus and gases 5.1 Apparatus 5.1.1 The FID The
42、 FID shall be shown by the manufacturer to comply with the minimum performance requirements defined in Table 1. NOTE When used in a continuous mode the instrument should be subject to a periodic functional test which will be specified in subsequent European Standards. Table 1 - Minimum performance r
43、equirements of FIDs - without sampling equipment Performance characteristics (see Note 1) Minimum performance requirements Minimum measuring range Detection limit Response time (0 % to 90 %) Linearity deviation Range of response factors (see Note 2) Methane Aliphatic hydrocarbons (see Note 3) Aromat
44、ic hydrocarbons (see Note 4) Aliphatic alcohols (see Note 5) Esters (see Note 6) Ketones (see Note 7) Organic acids (see Note 8) Effect of oxygen (see Note 9) 0 mg/m3 to 50 mg/m3, 150 mg/m3 or 500 mg/m3 5 % of the emission limit value less than 1 min permissible deviation 5 % of emission limit permi
45、ssible range 0,9 to 1,2 0,9 to 1,1 0,8 to 1,1 0,7 to 1,0 0,7 to 1,0 0,7 to 1,0 0,5 to 1,0 permissible interference: 5 % of emission limit NOTE 1 The methods for determining instrument characteristics are given in annex B. NOTE 2 Examples of typical response factors are given in annex C. NOTE 3 For t
46、he purpose of this standard the aliphatic hydrocarbons may be represented by two of ethane, butane, hexane, heptane, octane or cyclohexane. NOTE 4 For the purpose of this standard the aromatic hydrocarbons may be represented by benzene and toluene. NOTE 5 For the purpose of this standard aliphatic a
47、lcohols may be represented by two of methanol, ethanol or propanol. NOTE 6 For the purpose of this standard esters may be represented by ethyl acetate, or isobutyl acetate. NOTE 7 For the purpose of this standard ketones may be represented by acetone. NOTE 8 For the purpose of this standard organic
48、acids may be represented by acetic acid. NOTE 9 For flue gases with an oxygen content of less than 18 % the effect of oxygen shall be determined as shown in annex B. EN 13526:2001 (E) 9 5.1.2 Sampling device The sampling device shall be designed to take account of the flue gas characteristics: -it s
49、hall be made of a material that is chemically and physically inert to the constituents of the flue gas under analysis; NOTE Stainless steel, polytetrafluoroethylene or polypropylenefluoride are well proven construction materials. -it shall be designed to ensure a sample residence time less than 1 minute; - it shall be constructed to avoid condensation in the sampling line, several alternative methods are suitable: - heated sampling line. The line shall be heated throughout and where measurements are taken in hot gases the temperature of the coolest point shall be at l
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