1、May 2017 English price group 18No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 13.040.40!%e“2665997www.din.deDIN EN
2、 14789Stationary source emissions Determination of volume concentration of oxygen Standard reference method: Paramagnetism;English version EN 14789:2017,English translation of DIN EN 14789:2017-05Emissionen aus stationren Quellen Bestimmung der Volumenkonzentration von Sauerstoff Standardreferenzver
3、fahren: Paramagnetismus;Englische Fassung EN 14789:2017,Englische bersetzung von DIN EN 14789:2017-05Emissions de sources fixes Dtermination de la concentration volumique en oxygne Mthode de rfrence normalise: Paramagntisme;Version anglaise EN 14789:2017,Traduction anglaise de DIN EN 14789:2017-05Su
4、persedesDIN EN 14789:200604www.beuth.deDocument comprises 45 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.05.17This standard has been included in the VDI/DIN Handbook on air quality, Volume 5. DIN EN 14789:2017-05 2 A comma
5、is used as the decimal marker. National foreword This document (EN 14789:2017) has been prepared by Working Committee CEN/TC 264/WG 16 “Reference measurement methods for NOx, SO2, O2, CO and water vapour emissions” (Secretariat and Convenership: AFNOR, France) of Technical Committee CEN/TC 264 “Air
6、quality” (Secretariat: DIN, Germany), with the active participation of German experts of Kommission Reinhaltung der Luft im VDI und DIN Normenausschuss KRdL (Commission on Air Pollution Prevention of VDI and DIN Standards Committee KRdL). The responsible German body involved in its preparation was V
7、DI/DIN-Kommission Reinhaltung der Luft (KRdL) Normenausschuss, Working Committee NA 134-04-01 AA “Emission measurement techniques”. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 5725-2 DIN ISO 5725-2 ISO 5725-6 DIN ISO 5725-6 Amendmen
8、ts This standard differs from DIN EN 14789:2006-04 as follows: a) in Clause 1, Directive 2000/76/EC has been replaced by Directive 2010/75/EU; b) in Clause 2, the normative reference to EN 13284-1 has been replaced by EN 15259 regarding requirements for measurement sections and sites and for the mea
9、surement objective, plan and report; the normative reference to EN 15267-4 regarding performance criteria and test procedures for portable automated measuring systems for monitoring emissions from stationary sources has been included; c) in Clause 3, definitions have been revised taking into account
10、 EN 15259 definitions and the new version of VIM (2012); the detection limit has been deleted from the list of definitions and performance characteristics as repeatability at zero is more suitable; d) in Clause 4, symbols and abbreviations used in the main section of the document have been included;
11、 e) 6.3 corresponds to the former Clause 6; f) in Clause 7, the performance characteristics shall be determined in a general performance test according to the test procedures described in EN 15267-4; g) in 9.2, a reference to EN 15259 has been included for determining homogeneity; h) in 9.4.2.1, it
12、has been specified that test gases are to have concentrations traceable to SI units; i) in 9.4.3, an equation to calculate the concentration corrected when drift occurs has been included; j) in Clause 12, the expression of results has been modified to be in line with EN 15259; k) in Clause 13, the s
13、tandard deviation sr,limithas been recalculated according to new rules specified in EN 14793; DIN EN 14789:2017-05 3 l) in Annex A, an estimate of the expanded uncertainty calculated on the basis of of reproducibility has been included and has replaced the expression “reproducibility confidence inte
14、rval”; m) in Annex C, the presentation of the calculation of the uncertainty budget has been improved; n) in Annex D, typing errors in the table to determine the drift have been corrected. Previous editions DIN EN 14789: 2006-04 DIN EN 14789:2017-05 4 National Annex NA (informative) Bibliography DIN
15、 ISO 5725-2, Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method DIN ISO 5725-6, Accuracy (trueness and precision) of measurement methods and results Part 6: Use in pract
16、ice of accuracy values EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14789 January 2017 ICS 13.040.40 Supersedes EN 14789:2005English Version Stationary source emissions - Determination of volume concentration of oxygen - Standard reference method: Paramagnetism Emissions de sources fixes - D
17、termination de la concentration volumique en oxygne - Mthode de rfrence normalise: Paramagntisme Emissionen aus stationren Quellen - Bestimmung der Volumenkonzentration von Sauerstoff - Standardreferenzverfahren: Paramagnetismus This European Standard was approved by CEN on 26 September 2016. CEN me
18、mbers 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 applica
19、tion to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Manag
20、ement Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia
21、, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenu
22、e Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14789:2017 EEN 14789:2017 (E) 2 Contents Page European foreword 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 6 4 Symbols and abbrev
23、iations . 12 4.1 Symbols. 12 4.2 Abbreviated terms 13 5 Principle . 13 5.1 General 13 5.2 Measuring principle . 13 6 Description of the measuring system 13 6.1 General 13 6.2 Sampling and sample gas conditioning system 14 6.2.1 Sampling probe 14 6.2.2 Filter 14 6.2.3 Sample gas line 14 6.2.4 Sample
24、gas cooler or permeation drier 15 6.2.5 Sample gas pump 15 6.2.6 Secondary filter . 15 6.2.7 Flow controller and flow meter . 15 6.3 Different variants of the paramagnetism principle . 15 7 Performance characteristics of the SRM 16 8 Suitability of the measuring system for the measurement task 17 9
25、Field operation. 18 9.1 Measurement planning . 18 9.2 Sampling strategy . 18 9.2.1 General 18 9.2.2 Measurement section and measurement plane . 18 9.2.3 Minimum number and location of measurement points 18 9.2.4 Measurement ports and working platform . 18 9.3 Choice of the measuring system 18 9.4 Se
26、tting of the measuring system on site . 19 9.4.1 General 19 9.4.2 Preliminary zero and span check and adjustments . 19 9.4.3 Zero and span checks after measurement . 20 10 Ongoing quality control 21 10.1 General 21 10.2 Frequency of checks . 21 11 Expression of results . 21 12 Equivalence of an alte
27、rnative method . 21 DIN EN 14789:2017-05 EN 14789:2017 (E) 3 13 Measurement report . 22 Annex A (informative) Validation of the method in the field . 23 A.1 General . 23 A.2 Characteristics of installations 23 A.3 Repeatability and reproducibility in the field 24 A.3.1 General . 24 A.3.2 Repeatabili
28、ty 25 A.3.3 Reproducibility 26 Annex B (informative) Example of assessment of compliance of paramagnetic method for oxygen with given uncertainty requirements . 27 B.1 General . 27 B.2 Elements required for the uncertainty determinations . 27 B.2.1 Model equation 27 B.2.2 Combined uncertainty 28 B.2
29、.3 Expanded uncertainty . 28 B.2.4 Determination of uncertainty contributions in case of rectangular distributions . 29 B.2.5 Determination of uncertainty contributions by use of sensitivity coefficients . 29 B.3 Example of an uncertainty calculation 30 B.3.1 Site specific conditions . 30 B.3.2 Perf
30、ormance characteristics 30 B.3.3 Determination of the uncertainty contributions 31 B.3.4 Results of uncertainty calculation 34 B.3.4.1 Standard uncertainties . 34 B.3.4.2 Combined uncertainty 35 B.3.4.3 Expanded uncertainty . 36 B.3.4.4 Evaluation of the compliance with the required measurement qual
31、ity . 36 Annex C (informative) Schematic diagram of the measuring system . 37 Annex D (informative) Example of correction of data from drift effect 38 Annex E (informative) Significant technical changes . 40 Bibliography . 41 DIN EN 14789:2017-05 EN 14789:2017 (E) 4 European foreword This document (
32、EN 14789:2017) has been prepared by Technical Committee CEN/TC 264 “Air quality”, the secretariat of which is held by DIN. This document supersedes EN 14789:2005. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at
33、 the latest by July 2017, and conflicting national standards shall be withdrawn at the latest by July 2017. 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 held responsible for identifying any or al
34、l such patent rights. Annex E provides details of significant technical changes between this document and the previous edition. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, B
35、elgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Swe
36、den, Switzerland, Turkey and the United Kingdom. DIN EN 14789:2017-05 EN 14789:2017 (E) 5 1 Scope This European Standard specifies the standard reference method (SRM) based on the paramagnetic principle for the determination of the oxygen concentrations in flue gases emitted to the atmosphere from d
37、ucts and stacks. It includes the sampling and the gas conditioning system as well as the analyser. This European Standard specifies the performance characteristics to be determined and the performance criteria to be fulfilled by portable automated measuring systems (P-AMS) based on this measurement
38、method. It applies to periodic monitoring and the calibration or control of automated measuring systems (AMS) permanently installed on a stack, for regulatory or other purposes. This European Standard specifies criteria for demonstration of equivalence of an alternative method (AM) to the SRM by app
39、lication of EN 14793:2017. This European Standard has been validated during field tests on waste incineration, co-incineration and large combustion plants and on a recognized test bench. It has been validated for sampling periods of 30 min in the range from 3 % to 21 %. Oxygen concentration values,
40、expressed as volume concentrations, are used to allow results of emission measurements to be standardised to the oxygen reference concentration and dry gas conditions required e.g. by EU Directive 2010/75/EC on industrial emissions. NOTE The characteristics of installations, the conditions during fi
41、eld tests and the values of repeatability and reproducibility in the field are given in Annex A. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited ap
42、plies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 14793:2017, Stationary source emission Demonstration of equivalence of an alternative method with a reference method EN 15259:2007, Air quality - Measurement of stationary source emiss
43、ions - Requirements for measurement sections and sites and for the measurement objective, plan and report EN 15267-4:2017, Air quality Certification of automated measuring systems Part 4: Performance criteria and test procedures for automated measuring systems for periodic measurements of emissions
44、from stationary sources EN ISO 14956:2002, Air quality - Evaluation of the suitability of a measurement procedure by comparison with a required measurement uncertainty (ISO 14956:2002) ISO/IEC Guide 98-3:2008, Uncertainty of measurement Part 3: Guide to the expression of uncertainty in measurement (
45、GUM:1995) DIN EN 14789:2017-05 EN 14789:2017 (E) 6 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. NOTE In this European Standard, the volume concentration of oxygen is expressed in percent. 3.1 standard reference method SRM reference method pres
46、cribed by European or national legislation SOURCE: EN 15259:2007 3.2 reference method RM measurement method taken as a reference by convention, which gives the accepted reference value of the measurand Note 1 to entry: A reference method is fully described. Note 2 to entry: A reference method can be
47、 a manual or an automated method. Note 3 to entry: Alternative methods can be used if equivalence to the reference method has been demonstrated. SOURCE: EN 15259:2007 3.3 measurement method method described in a written procedure containing all the means and procedures required to sample and analyse
48、, namely field of application, principle and/or reactions, definitions, equipment, procedures, presentation of results, other requirements and measurement report SOURCE: EN 14793:2017 3.4 alternative method AM measurement method which complies with the criteria given by this European Standard with r
49、espect to the reference method Note 1 to entry: An alternative method can consist of a simplification of the reference method. SOURCE: EN 14793:2017 3.5 measuring system set of one or more measuring instruments and often other devices, including any reagent and supply, assembled and adapted to give information used to generate measured quantity values within specified intervals for quantities of specified kinds SOURCE: JCGM 200:2012 DIN EN 14789:2017-05 EN 14789:2017 (E) 7 3.6 automated measuring system AMS entirety of all mea
