1、November 2010 Translation by DIN-Sprachendienst.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).I
2、CS 13.040.20!$l1e“1731466www.din.deDDIN EN 15852Ambient air quality Standard method for the determination of total gaseous mercuryEnglish translation of DIN EN 15852:2010-11Auenluftbeschaffenheit Standardisiertes Verfahren zur Bestimmung des gesamten gasfrmigen QuecksilbersEnglische bersetzung von D
3、IN EN 15852:2010-11Qualit de lair ambiant Mthode normalise pour la dtermination du mercure gazeux totalTraduction anglaise de DIN EN 15852:2010-11www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.This standard has been included in th
4、e VDI/DIN Handbook on air quality, Volume 5. 11.10 47DIN EN 15852:2010-11 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 25 “Mercury measurement methods in ambient air
5、 and deposition”. The 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), Working Group Messen von Metallen und Halbmetallen (I) of Section IV Um
6、weltmesstechnik. The DIN Standards corresponding to the European and International Standards referred to in this document are as follows: EN ISO 20988 DIN EN ISO 20988 ENV 13005 DIN V ENV 13005 ISO 5725-2 DIN ISO 5725-2 National Annex NA (informative) Bibliography DIN EN ISO 14956, Air quality Evalu
7、ation of the suitability of a measurement procedure by comparison with a required measurement uncertainty DIN EN ISO 20988, Air quality Guidelines for estimating measurement uncertainty DIN EN 14884, Air quality Stationary source emissions Determination of total mercury: Automated measuring systems
8、DIN V ENV 13005, Guide to the expression of uncertainty in measurement 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 standard measurement method VDI 2267 Part 8, Determination
9、of suspended particles in ambient air Measurement of the mass concentration of mercury Sampling by sorption as amalgam and determination by atomic absorption spectrometry (AAS) with cold vapour technique VDI 2267 Part 9, Determination of suspended particulates matter in ambient air Measurement of th
10、e mass concentration of mercury Sampling by sorption as amalgam and determination by atomic fluorescence spectrometry (AFS) with cold vapour technique 2 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15852 June 2010 ICS 13.040.20 English Version Ambient air quality - Standard method for the de
11、termination of total gaseous mercury Qualit de lair ambiant - Mthode normalise pour la dtermination du mercure gazeux total Auenluftbeschaffenheit - Standardisiertes Verfahren zur Bestimmung des gesamten gasfrmigen Quecksilbers This European Standard was approved by CEN on 5 May 2010. CEN members ar
12、e 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 application to
13、the CEN 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 Management Centre has the sam
14、e status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Po
15、rtugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any mea
16、ns reserved worldwide for CEN national Members. Ref. No. EN 15852:2010: EEN 15852:2010 (E) 2 Contents Page Foreword 41 Scope 52 Normative references 53 Terms and definitions .54 Symbols and abbreviated terms 84.1 Symbols 84.2 Abbreviations 115 Principle . 116 Requirements 126.1 Siting criteria . 126
17、.2 Method requirements . 126.3 Method detection limit 126.4 Field operation and quality control . 127 Reagents 128 Apparatus 138.1 Sampling equipment 138.2 Analytical instrumentation . 138.3 Calibration equipment 139 Sampling considerations . 149.1 Inlet location 149.2 Sampling inlet and sampling li
18、ne 149.3 Measurement time 1510 Measurement procedure 1610.1 Calibration with AFS/AAS 1610.2 Calibration with Zeeman AAS 1711 Quality control . 1711.1 Calibration robustness check . 1711.2 Zero gas check 1811.3 Degradation of gold traps 1811.4 Proficiency testing scheme . 1811.5 Accreditation . 1811.
19、6 Measurement uncertainty 1812 Calculation of results . 1812.1 General . 1812.2 Calculation of TGM concentrations to reference conditions . 1912.3 Method detection limit 2012.4 Repeatability 2012.5 Drift in instrument sensitivity 2113 Estimation of the measurement uncertainty method and performance
20、criteria 2113.1 Introduction . 2113.2 Assessment against target measurement uncertainty for individual laboratories . 2213.3 Use of uncertainties in reporting of results . 2314 Performance characteristics determined in field tests . 2415 Interferences . 24DIN EN 15852:2010-11 EN 15852:2010 (E) 3 15.
21、1 General . 2415.2 Mercury analyser based on amalgamation and CVAAS or CVAFS 2415.3 Mercury analyser based on Zeeman AAS . 2516 Reporting of results 25Annex A (informative) Sampling sites 26Annex B (informative) Manual method TGM 27Annex C (informative) Summary of field validation tests . 29Annex D
22、(informative) Characteristics of the mercury vapour source 34Annex E (informative) Calibration . 37Annex F (informative) Assessment against target uncertainty by an individual laboratory . 38Annex G (informative) Relationship between this European Standard and the Essential Requirements of EU Direct
23、ives 44Bibliography 45DIN EN 15852:2010-11 EN 15852:2010 (E) 4 Foreword This document (EN 15852:2010) 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 national standard, either by publica
24、tion of an identical text or by endorsement, at the latest by December 2010, and conflicting national standards shall be withdrawn at the latest by December 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
25、shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). According to the CEN/CENELEC Internal
26、Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg
27、, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 15852:2010-11 EN 15852:2010 (E) 5 1 Scope This European Standard specifies a standard method for determining total gaseous mercury (TGM) in ambient air using cold va
28、pour atomic absorption spectrometry (CVAAS), or cold vapour atomic fluorescence spectrometry (CVAFS). This European Standard is applicable to background sites that are in accordance with the requirements of Directive 2004/107/EC and to urban and industrial sites. The performance characteristics of t
29、he method have been determined in comparative field validation tests carried out at four European locations: two background and two industrial sites. The method was tested for two months at each site over a period of twelve months using automated equipment currently used in Europe for determination
30、of TGM in ambient air. The working range of the method covers the range of ambient air concentrations from those found at background sites, typically less than 2 ng/m3, up to those found at industrial sites where higher concentrations are expected. A maximum daily average up to 300 ng/m3was measured
31、 during the field trials. Results are reported as the average mass of TGM per volume of air at 293,15 K and 101,325 kPa, measured over a specified time period, in nanograms per cubic metre.2 Normative references The following referenced documents are indispensable for the application of this documen
32、t. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ENV 13005, Guide to the expression of uncertainty in measurementCR 14377, Air quality Approach to uncertainty estimation for ambient air
33、reference measurement methodsEN ISO 20988, Air quality Guidelines for estimating measurement uncertainty (ISO 20988:2007) ISO 5725-2:1994, Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of the trueness of a standard measurement method
34、ISO 8573-1:2010, Compressed air Part 1: Contaminants and purity classes 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 ambient air outdoor air in the troposphere, excluding workplace air 3.2 calibration operation that, under specified condit
35、ions, 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 establish a relation for obtaining a meas
36、urement result from an indication DIN EN 15852:2010-11 EN 15852:2010 (E) 6 NOTE 1 A calibration may be expressed by a statement, calibration function, calibration diagram, calibration curve, or calibration table. In some cases, it may consist of an additive or multiplicative correction of the indica
37、tion with associated measurement uncertainty. NOTE 2 Calibration should not be confused with adjustment of a measuring system, often mistakenly called “self-calibration“, nor with verification of calibration. NOTE 3 Often, the first step alone in the above definition is perceived as being calibratio
38、n ISO/IEC Guide 99:2007 (VIM). 3.3 combined standard measurement uncertainty standard measurement uncertainty that is obtained using the individual standard measurement uncertainties associated with the input quantities in a measurement model NOTE In case of correlations of input quantities in a mea
39、surement model, covariances should also be taken into account when calculating the combined standard measurement uncertainty ISO/IEC Guide 99:2007 (VIM). 3.4 coverage factor number larger than one by which a combined standard measurement uncertainty is multiplied to obtain an expanded measurement un
40、certainty NOTE A coverage factor is usually symbolized k ISO/IEC Guide 99:2007 (VIM). 3.5 detection limit measured quantity value for which the probability of falsely claiming the absence of a component in a material is , given a probability of falsely claiming its presence NOTE IUPAC recommends def
41、ault values for and equal to 0,05. 3.6 expanded standard measurement uncertainty product of a combined standard measurement uncertainty and a factor larger than the number one NOTE 1 The factor depends upon the type of probability distribution of the output quantity in a measurement model and on the
42、 selected coverage probability. NOTE 2 The term “factor“ in this definition refers to a coverage factor. NOTE 3 Expanded measurement uncertainty is termed “overall uncertainty“ in paragraph 5 of Recommendation INC-1 (1980) (see the GUM) and simply “uncertainty“ in IEC documents ISO/IEC Guide 99:2007
43、 (VIM). NOTE 4 For the purpose of this document the expanded uncertainty is the combined standard uncertainty multiplied by a coverage factor k = 2 resulting in an interval with a level of confidence of 95 %. 3.7 measurement repeatability measurement precision under a set of repeatability conditions
44、 of measurement ISO/IEC Guide 99:2007 (VIM) 3.8 measurement reproducibility measurement precision under reproducibility conditions of measurement NOTE Relevant statistical terms are given in ISO 5725-1:1994 and ISO 5725-2:1994 ISO/IEC Guide 99:2007 (VIM). DIN EN 15852:2010-11 EN 15852:2010 (E) 7 3.9
45、 measurement time length of time over which the measurement instrumentation produces a single concentration value, during normal operation NOTE 1 For “trap and desorb“ instruments this will be the time period air is sampled across the gold trap prior to each thermal desorption cycle analysis; for di
46、rect measurement instruments this will be the time period in which the absorbance is averaged to produce a single value. NOTE 2 Measurement times during the field trial campaign ranged from 30 s to 30 min. 3.10 measurement uncertainty non-negative parameter characterizing the dispersion of the quant
47、ity values being attributed to a measurand, based on the information used NOTE 1 Measurement uncertainty includes components arising from systematic effects, such as components associated with corrections and the assigned quantity values of measurement standards, as well as the definitional uncertai
48、nty. Sometimes estimated systematic effects are not corrected for but, instead, associated measurement uncertainty components are incorporated. NOTE 2 The parameter may be, for example, a standard deviation called standard measurement uncertainty (or a specified multiple of it), or the half-width of
49、 an interval, having a stated coverage probability ISO/IEC Guide 99:2007 (VIM). 3.11 method detection limit lowest amount of an analyte that is detectable using the method, as determined by sampling and analysis of zero gas 3.12 monitoring period time period over which monitoring is intended to take place,
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