1、December 2012 Translation by DIN-Sprachendienst.English price group 27No 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).I
2、CS 13.040.20!$-_“1931060www.din.deDDIN EN 14626Ambient air Standard method for the measurement of the concentration of carbonmonoxide by non-dispersive infrared spectroscopy;English version EN 14626:2012,English translation of DIN EN 14626:2012-12Auenluft Messverfahren zur Bestimmung der Konzentrati
3、on von Kohlenmonoxid mitnicht-dispersiver Infrarot-Photometrie;Englische Fassung EN 14626:2012,Englische bersetzung von DIN EN 14626:2012-12Air ambiant Mthode normalise de mesurage de la concentration en monoxyde de carbone parspectroscopie rayonnement infrarouge non dispersif;Version anglaise EN 14
4、626:2012,Traduction anglaise de DIN EN 14626:2012-12SupersedesDIN EN 14626:2005-07www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.8811.12This standard has been included in the VDI/DIN Handbook on air quality, Volume 5. DIN EN 14626
5、:2012-12 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 264 “Air quality” (Secretariat: DIN, Germany), Working Group WG 12 “Reference method for determination of SO2/NO2/O3/CO in ambient air” (Secretariat: NEN, Netherlands). T
6、he responsible German body involved in its preparation was the Kommission Reinhaltung der Luft (KRdL) im VDI und DIN Normenausschuss (Commission on Air Pollution Prevention of VDI and DIN Standards Committee). Amendments This standard differs from DIN EN 14626:2005-07 as follows: a) Clause 1 “Scope”
7、: the scope has been extended to include information for different groups of users; b) Subclauses 8.1 and 8.3: normative references to EN 15267-1 and EN 15267-2 have been included; c) Subclause 8.4.2.3, Table 4: requirements for impurities in zero gas have been relaxed for other than interferents te
8、sts; d) Subclauses 9.4 and 9.6: the performance requirements for some performance characteristics have been tightened. Additional performance criteria and tests have been introduced for repeatability at zero and span levels; e) Subclause 9.5: formulae for software adjustment of the raw analyser sign
9、al after calibration have been introduced; f) Subclause 9.9 (new): general information on measurement uncertainty has been included; g) Clause 11: more stringent requirements have been specified for test reports and documentation; h) the former Annex C has been replaced by the reference to Directive
10、 2008/50/EC (Subclause 6.2); i) Annex E.3 (previously F.3): the formulae for the calculation of the influence quantities have been modified; j) Annex E (previously F) and Annex F (previously G): examples of calculations have been modified/supplemented. Previous editions DIN EN 14626: 2005-07 DIN EN
11、14626:2012-12 3 National Annex NA (informative) Bibliography VDI 4202 Part 1, Performance criteria for performance tests of automated ambient air measuring systems Point-related measurement methods for gaseous and particulate air pollutants VDI 4203 Part 1, Testing of automated measuring systems Gen
12、eral concepts VDI 4203 Part 3, Testing of automated measuring systems Test procedures for point-related ambient air measuring systems for gaseous and particulate air pollutants DIN EN 14626:2012-12 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14626 August 2
13、012 ICS 13.040.20 Supersedes EN 14626:2005English Version Ambient air - Standard method for the measurement of the concentration of carbon monoxide by non-dispersive infrared spectroscopy Air ambiant - Mthode normalise de mesurage de la concentration en monoxyde de carbone par spectroscopie rayonnem
14、ent infrarouge non dispersif Auenluft - Messverfahren zur Bestimmung der Konzentration von Kohlenmonoxid mit nicht-dispersiver Infrarot-Photometrie This European Standard was approved by CEN on 10 May 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the
15、 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 CEN-CENELEC Management Centre or to any CEN member. This European Standard
16、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 Management Centre has the same status as the official versions. CEN members are the national
17、 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, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovaki
18、a, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worl
19、dwide for CEN national Members. Ref. No. EN 14626:2012: EEN 14626:2012 (E) 2 Contents Contents 2Foreword 41 Scope 52 Normative references 63 Terms and definitions . 64 Abbreviated terms . 105 Principle 115.1 General 115.2 Measuring principle . 115.3 Type approval test . 115.4 Field operation and qua
20、lity control 126 Sampling . 126.1 General 126.2 Sampling location 126.3 Sampling system . 126.4 Control and regulation of sample flow rate 136.5 Sampling pump for the manifold 147 Analyser equipment 147.1 General 147.2 Interferents . 147.3 Details about analyser equipment . 147.4 Pressure measuremen
21、t . 157.5 Flow rate indicator . 157.6 Sampling pump for the analyser 157.7 Particle filter . 158 Type approval of carbon monoxide analysers . 158.1 General 158.2 Relevant performance characteristics and performance criteria . 168.3 Design change . 188.4 Procedures for determination of the performanc
22、e characteristics during the laboratory test . 188.5 Determination of the performance characteristics during the field test 288.6 Expanded uncertainty calculation for type approval . 329 Field operation and ongoing quality control 339.1 General 339.2 Suitability evaluation . 33DIN EN 14626:2012-12 E
23、N 14626:2012 (E) 3 9.3 Initial installation . 359.4 Ongoing quality assurance/quality control. 369.5 Calibration of the analyser 389.6 Checks 399.7 Maintenance . 439.8 Data handling and data reports 449.9 Measurement uncertainty . 4410 Expression of results 4511 Test reports and documentation 4511.1
24、 Type approval test . 4511.2 Field operation . 46Annex A (normative) Test of lack of fit . 48Annex B (informative) Sampling equipment. 50Annex C (informative) Schematics of non-dispersive infrared spectrometer 52Annex D (informative) Manifold testing 54Annex E (normative) Type approval 56Annex F (in
25、formative) Calculation of uncertainty in field operation at the 8-hour limit value 75Annex G (informative) Significant technical changes . 83Bibliography 84DIN EN 14626:2012-12 EN 14626:2012 (E) 4 Foreword This document (EN 14626:2012) has been prepared by Technical Committee CEN/TC 264 “Air quality
26、”, 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 February 2013, and conflicting national standards shall be withdrawn at the latest by February 2013. Att
27、ention 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 all such patent rights. This document supersedes EN 14626:2005. The technical changes made since EN 14211:2005 ar
28、e listed in Annex G of this European Standard. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, For
29、mer Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 14626:2012-12 EN 14626:2012 (E) 5
30、 1 Scope This European Standard specifies a continuous measurement method for the determination of the concentration of carbon monoxide present in ambient air based on the non-dispersive infrared spectroscopic measuring principle. This standard describes the performance characteristics and sets the
31、relevant minimum criteria required to select an appropriate non-dispersive infrared spectroscopic analyser by means of type approval tests. It also includes the evaluation of the suitability of an analyser for use in a specific fixed site so as to meet the data quality requirements as specified in A
32、nnex I of Directive 2008/50/EC 1 and requirements during sampling, calibration and quality assurance for use. The method is applicable to the determination of the mass concentration of carbon monoxide present in ambient air up to 100 mg/m3carbon monoxide. This concentration range represents the cert
33、ification range for the type approval test. NOTE 1 Other ranges may be used depending on the levels present in ambient air. NOTE 2 When the standard is used for other purposes than for measurements required by Directive 2008/50/EC, the ranges and uncertainty requirements may not apply. The method co
34、vers the determination of ambient air concentrations of carbon monoxide in zones classified as rural areas, urban-background areas and traffic-orientated locations and locations influenced by industrial sources. The results are expressed in mg/m3(at 20 C and 101,3 kPa). NOTE 3 100 mg/m3of CO corresp
35、onds to 86 mol/mol of CO. This standard contains information for different groups of users. Clauses 5 to 7 and Annexes B, C and D contain general information about the principles of carbon monoxide measurement by non-dispersive infrared spectroscopic analyser and sampling equipment. Clause 8 and Ann
36、ex E are specifically directed towards test houses and laboratories that perform type-approval testing of carbon monoxide analysers. These sections contain information about: type-approval test conditions, test procedures and test requirements; analyser performance requirements; evaluation of the ty
37、pe-approval test results; evaluation of the uncertainty of the measurement results of the carbon monoxide analyser based on the type-approval test results. Clauses 9 to 11 and Annex F are directed towards monitoring networks performing the practical measurements of carbon monoxide in ambient air. Th
38、ese sections contain information about: initial installation of the analyser in the monitoring network and acceptance testing; ongoing quality assurance/quality control; calculation and reporting of measurement results; evaluation of the uncertainty of measurement results under practical monitoring
39、conditions. DIN EN 14626:2012-12 EN 14626:2012 (E) 6 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 ed
40、ition of the referenced document (including any amendments) applies. EN 15267-1, Air quality Certification of automated measuring systems Part 1: General principles EN 15267-2, Air quality Certification of automated measuring systems Part 2: Initial assessment of the AMS manufacturers quality manage
41、ment system and post certification surveillance for the manufacturing process EN ISO 6142, Gas analysis Preparation of calibration gas mixtures Gravimetric method (ISO 6142) EN ISO 6143, Gas analysis Comparison methods for determining and checking the composition of calibration gas mixtures (ISO 614
42、3) EN ISO 6144, Gas analysis Preparation of calibration gas mixtures Static volumetric methods (ISO 6144) EN ISO 6145-6, Gas analysis Preparation of calibration gas mixtures using dynamic volumetric methods Part 6: Critical orifices (ISO 6145-6) EN ISO 6145-7, Gas analysis Preparation of calibration
43、 gas mixtures using dynamic volumetric methods Part 7: Thermal mass-flow controllers (ISO 6145-7) EN ISO 14956, Air quality Evaluation of the suitability of a measurement procedure by comparison with a required measurement uncertainty (ISO 14956) EN ISO/IEC 17025, General requirements for the compet
44、ence of testing and calibration laboratories (ISO/IEC 17025) ENV 13005:1999, Guide to the expression of uncertainty in measurement 3 Terms and definitions For the purpose of this document, the following terms and definitions apply. 3.1 adjustment set of operations carried out on a measuring system s
45、o that it provides prescribed indications corresponding to given values of a quantity to be measured Note 1 to entry: Types of adjustment of a measuring system include zero adjustment of a measuring system, offset adjustment, and span adjustment (sometimes called gain adjustment). Note 2 to entry: A
46、djustment of a measuring system should not be confused with calibration, which is a prerequisite for adjustment. SOURCE: JCGM 200:2012 (VIM) 2 Note 3 to entry: In the context of this standard, adjustment is performed on measurement data rather than on the analyser. 3.2 ambient air outdoor air in the
47、 troposphere, excluding workplaces as defined by Directive 89/654/EEC, where provisions concerning health and safety at work apply and to which members of the public do not have regular access SOURCE: 2008/50/EC1 DIN EN 14626:2012-12 EN 14626:2012 (E) 7 3.3 analyser measuring system that provides an
48、 output signal which is a function of the concentration, partial pressure, flow or temperature of one or more components of a gas mixture 3.4 availability of the analyser fraction of the time period for which valid measuring data of the ambient air concentration is available from an analyser 3.5 cal
49、ibration operation that, under specified conditions, in a first step, establishes a relation between the quantity values with measurement uncertainties provided by measurement standards and corresponding indications with associated measurement uncertainties and, in a second step, uses this information to e
