1、May 2017 English price group 15No 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“2665996www.din.deDIN EN
2、 14793Stationary source emissions Demonstration of equivalence of an alternative method with a reference method;English version EN 14793:2017,English translation of DIN EN 14793:2017-05Emissionen aus stationren Quellen Nachweis der Gleichwertigkeit eines Alternativverfahrens mit einem Referenzverfah
3、ren;Englische Fassung EN 14793:2017,Englische bersetzung von DIN EN 14793:2017-05missions de sources fixes Dmonstration de lquivalence dune mthode alternative avec une mthode de rfrence;Version anglaise EN 14793:2017,Traduction anglaise de DIN EN 14793:2017-05SupersedesDIN CEN/TS 14793:200506www.beu
4、th.deDocument comprises 38 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 14793:2017-05 2 A comma is used as the decimal marker. Nat
5、ional foreword This document (EN 14793:2017) 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 264 “Air quality” (Secretariat: DIN, Germany), wit
6、h 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 VDI/DIN-Kommission Reinhaltung der Luft (K
7、RdL) 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 5725-1 DIN ISO 5725-1 ISO 5725-2 DIN ISO 5725-2 ISO 11095 DIN ISO 11095 ISO 11843-1 DIN ISO 11843
8、-1 Amendments This standard differs from DIN CEN/TS 14793:2005-06 as follows: a) the title and Scope have been rendered more precise as the term “validation” in the field of air quality which had been used before is used in a different context; the validation of a measurement method is already effec
9、ted by drafting the standard describing the measurement method; the user of the standardized and validated procedure (reference procedure) can then perform equivalence testing of an alternative method by using the reference method; b) symbols and equations have been verified and corrected; c) the ex
10、ample in Annex A has been revised and corrected; d) a new Annex C “Minimum requirements for a test bench” used for the detection of equivalence of emission measurements has been included. Previous editions DIN CEN/TS 14793: 2005-06 DIN EN 14793:2017-05 3 National Annex NA (informative) Bibliography
11、DIN ISO 5725-1, Accuracy (trueness and precision) of measurement methods and results Part 1: General principles and definitions DIN 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 st
12、andard measurement method DIN ISO 11095, Linear calibration using reference materials DIN EN ISO 11843-1, Capability of detection Part 1: Terms and definitions DIN EN 14793:2017-05 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14793 January 2017 ICS 13.040.4
13、0 Supersedes CEN/TS 14793:2005English Version Stationary source emissions - Demonstration of equivalence of an alternative method with a reference method missions de sources fixes - Dmonstration de lquivalence dune mthode alternative avec une mthode de rfrence Emissionen aus stationren Quellen - Nac
14、hweis der Gleichwertigkeit eines Alternativverfahrens mit einem Referenzverfahren This European Standard was approved by CEN on 26 September 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of
15、a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German).
16、 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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cy
17、prus, 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, Sweden, Switzerland, Turkey and
18、United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue 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.
19、 EN 14793:2017 EEN 14793:2017 (E) 2 Contents Page European foreword . 3 Introduction 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 6 4 Symbols . 9 5 Contents of the demonstration of equivalence 11 5.1 General . 11 5.2 Description of the alternative method . 11 5.3 Determination of p
20、erformance characteristics 12 5.3.1 General . 12 5.3.2 Manual method . 12 5.3.3 Automatic method . 13 5.4 Calculation of the expanded uncertainty of the AM . 13 5.5 Demonstration of equivalence in the field 14 5.5.1 Coverage of in field demonstration . 14 5.5.2 Evaluation of repeatability and truene
21、ss in relation to the RM 15 6 Report of the demonstration of equivalence . 18 Annex A (informative) Example of comparison of repeatability and trueness of Thorin Method and Ion Chromatography Method for SO2measurement in stack 21 Annex B (informative) Critical values for Grubbs test 32 Annex C (norm
22、ative) Minimum requirements for a test bench 33 Bibliography . 34 DIN EN 14793:2017-05 EN 14793:2017 (E) 3 European foreword This document (EN 14793:2017) has been prepared by Technical Committee CEN/TC 264 “Air quality”, the secretariat of which is held by DIN. This document supersedes CEN/TS 14793
23、:2005. 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 July 2017, and conflicting national standards shall be withdrawn at the latest by July 2017. Attention is drawn to the possibility that some
24、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 all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implem
25、ent this European Standard: Austria, Belgium, 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,
26、Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 14793:2017-05 EN 14793:2017 (E) 4 Introduction Much has been published in the literature concerning method validation by collaborative study. CEN/TC 264 working groups try to follow these method validations
27、 when a new standard is prepared and the collaborative study is probably the preferred way of carrying out the validation. However, it is not always a suitable option for accredited laboratories. The application for which the method is required can be esoteric to the extent that no other laboratorie
28、s would be interested in collaboration. Those that might be interested can be competitors. This European Standard provides one of possible methods of testing the equivalence of an alternative method (AM) with the standard reference method (SRM) or with a reference method (RM) if the legislator has n
29、ot defined a standard reference method. NOTE The term “reference method” is used in this standard to cover reference methods as well as standard reference methods. In the framework of certification of automated measuring systems used for the measurement of stationary source emissions this European S
30、tandard can be used in conjunction with EN 15267-4:2017 to demonstrate the equivalence of portable automated measuring systems (P-AMS) based on an AM with the standard reference method (SRM). DIN EN 14793:2017-05 EN 14793:2017 (E) 5 1 Scope This European Standard specifies a procedure to demonstrate
31、 the equivalence of an alternative method (AM) with the reference method (RM) or the standard reference method (SRM), both implemented to determine the same measurand. In particular, this European Standard provides the statistical tools and different criteria to evaluate the alternative method. This
32、 does not release the body performing the equivalence testing from bearing technical and analytical judgement on the evaluation of the different criteria. Three steps are required for demonstration of equivalence: description of the alternative method and setting of the field of application (measure
33、ment range and type of gas matrix); determination of the performance characteristics of the alternative method and calculation of the expanded uncertainty where appropriate and check of compliance with the maximum expanded uncertainty allowed for the reference method; check of repeatability and lack
34、 of systematic deviation of the alternative method in the field or on a recognized test bench in comparison with the reference method for the type of matrix defined in the field of equivalence. This European Standard requires that a reference method has been defined and validated. This European Stan
35、dard only considers the case of linear quantitative methods. This European Standard is applicable to manual and automated methods. This European Standard has been drawn up for laboratories working in air quality measurements and consequently an example taken from this sector are presented in Annex A
36、. 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 applies. For undated references, the latest edition of the referenced document (including any ame
37、ndments) applies. EN ISO 14956, Air quality - Evaluation of the suitability of a measurement procedure by comparison with a required measurement uncertainty (ISO 14956) ISO 5725-1:1994, Accuracy (trueness and precision) of measurement methods and results Part 1: General principles and definitions IS
38、O 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 ISO/IEC Guide 98-3:2008, Uncertainty of measurement Part 3: Guide to the expression of uncertainty in measur
39、ement (GUM:1995) DIN EN 14793:2017-05 EN 14793:2017 (E) 6 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 standard reference method SRM reference method prescribed by European or national legislation SOURCE: EN 15259:2007 Note 1 to entry: Sta
40、ndard reference methods are used e.g. to calibrate and validate automated measuring systems permanently installed at stacks and for periodic measurements to check compliance with limit values. 3.2 reference method RM measurement method taken as a reference by convention, which gives the accepted ref
41、erence value of the measurand Note 1 to entry: A reference method is fully described. Note 2 to entry: A reference method can be 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 a
42、lternative method AM measurement method which complies with the criteria given by this European Standard with respect to the reference method Note 1 to entry: An alternative method can consist of a simplification of the reference method. 3.4 measurement method method described in a written procedure
43、 containing all the means and procedures required to sample and analyse, namely field of application, principle and/or reactions, definitions, equipment, procedures, presentation of results, other requirements and measurement report 3.5 calibration set of operations that establish, under specified c
44、onditions, the relationship between values of quantities indicated by a measuring method or measuring system, and the corresponding values given by the applicable reference 3.6 accepted reference value value which serves as a reference value (or conventionally true value) of the sample, provided by
45、the reference method or standard reference method DIN EN 14793:2017-05 EN 14793:2017 (E) 7 3.7 demonstration of equivalence act of subjecting a measurement method to a study, which is based on a standardised and/or recognised protocol and which provides proof that, for its field of application, the
46、measurement method satisfies pre-established performance criteria Note 1 to entry: In the framework of this European Standard, the demonstration of equivalence of a method is mainly based on an “in field” study that includes comparison to a reference method. 3.8 field of application combination of t
47、he different types of matrix and the range of concentrations of the measured component covered, to which the measurement method is applied Note 1 to entry: As well as being an indication of all the satisfactory performance conditions for each factor, the field of application of the measurement metho
48、d can also include warnings concerning known interferences caused by other components, or the inapplicability of certain matrices or conditions. 3.9 matrix all the components of the sample other than the measured component Note 1 to entry: Some components of the matrix can influence the result of me
49、asurement. These components are called interferents. 3.10 measurand particular quantity subject to measurement SOURCE: EN 15259:2007 Note 1 to entry: The measurand is a quantifiable property of the stack gas under test, for example mass concentration of a measured component, temperature, velocity, mass flow, oxygen content and water vapour content. 3.11 measured component constituent of the waste gas for which a defined measurand is to be determined by measurement SOURCE: EN 15259:2007 Note 1 to entry: Measured com
