1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 12619:2013Stationary source emissions Determination of the massconcentration of total gaseousorganic carbon Continuousflame ionisation detectormethodBS EN 12619:2013 BRITIS
2、H STANDARDNational forewordThis British Standard is the UK implementation of EN 12619:2013.It supersedes BS EN 12619:1999 and BS EN 13526:2002 which arewithdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee EH/2/1, Stationary source emission.A list of organizations rep
3、resented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580
4、 73805 0ICS 13.040.40Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 January 2013.Amendments issued since publicationDate T e x t a f f e c t e dBS EN 12619:201
5、3EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12619 January 2013 ICS 13.040.40 Supersedes EN 12619:1999, EN 13526:2001English Version Stationary source emissions - Determination of the mass concentration of total gaseous organic carbon - Continuous flame ionisation detector method Emissions
6、de sources fixes - Dtermination de la concentration massique en carbone organique total - Mthode du dtecteur continu ionisation de flamme Emissionen aus stationren Quellen - Bestimmung der Massenkonzentration des gesamten gasfrmigen organisch gebundenen Kohlenstoffs - Kontinuierliches Verfahren mit
7、dem Flammenionisationsdetektor This European Standard was approved by CEN on 24 November 2012. CEN members 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-da
8、te 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). A version in any other language made by translation
9、 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, For
10、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 United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT
11、 EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12619:2013: EBS EN 12619:2013EN 12619:2013 (E) 2 Contents Page Forew
12、ord . 3 1 Scope 4 2 Normative references . 4 3 Terms and definitions 4 4 The principle of the technique 6 5 Requirements for apparatus and gases 7 6 Measurement procedure 9 Annex A (normative) Determination of the performance characteristics of a FID . 12 Annex B (informative) Basic functionality of
13、 an FID 15 Annex C (informative) Measurement uncertainty and associated statistics 18 Annex D (informative) Safety measures . 20 Annex E (informative) Significant technical changes 21 Bibliography 22 BS EN 12619:2013EN 12619:2013 (E) 3 Foreword This document (EN 12619:2013) has been prepared by Tech
14、nical 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 publication of an identical text or by endorsement, at the latest by July 2013, and conflicting national standards shall be withdrawn
15、at the latest by July 2013. 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 all such patent rights. This document supersedes EN 12619:1999 and EN 13526:2001.
16、The list of the most significant technical changes that have been made in this new edition is to be found in Annex E. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bu
17、lgaria, 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, Slovakia, Slovenia, Spain, Sweden, Switzerland,
18、Turkey and the United Kingdom. BS EN 12619:2013EN 12619:2013 (E) 4 1 Scope This European Standard specifies a flame ionisation detector (FID) method. It is intended for use as a standard reference method for the measurement of the mass concentration of gaseous and vaporous organic substances (expres
19、sed as TVOC) in stationary source emissions (e.g. emissions from waste incinerators and solvent using processes, emission measurements according to 2010/75/EU) in the concentration range up to 1 000 mg/m. This European Standard specifies the requirements for an instrument using flame ionisation dete
20、ction, together with procedures for its operation. The results obtained using this standard are expressed in milligrams per cubic metre (mg/m) as total carbon (TVOC). This European Standard is not applicable for permanently installed automated measuring systems (AMS). Alternative methods to this met
21、hod may be used provided that the user can demonstrate equivalence, based on the principles of CEN/TS 14793. 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 edit
22、ion cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 15259, Air quality Measurement of stationary source emissions Requirements for measurement sections and sites and for the measurement objective, plan and report EN 15267-1,
23、 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 management system and post certification surveillance for the manufacturing process EN
24、 15267-3:2007, Air quality Certification of automated measuring systems Part 3: Performance criteria and test procedures for automated measuring systems for monitoring emissions from stationary sources EN ISO 9169, Air quality Definition and determination of performance characteristics of an automat
25、ic measuring system (ISO 9169) EN ISO 14956, Air quality Evaluation of the suitability of a measurement procedure by comparison with a required measurement uncertainty (ISO 14956) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 combustion air
26、 air supply used for the combustion of fuel gas in an instrument using flame ionisation detection 3.2 detection limit minimum concentration of a substance which produces an observable response, which is two times the standard deviation at zero BS EN 12619:2013EN 12619:2013 (E) 5 3.3 dilution gas gas
27、 used to dilute sampled flue gas to prevent water condensation 3.4 flame ionisation detector (FID) instrument using flame ionisation detection 3.5 flue gas product from a combustion, incineration or solvent process containing gaseous and/or particulate compounds 3.6 fuel gas gas of known composition
28、 used to maintain the flame of the FID 3.7 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 temperature and pressure, normally expressed in milligrams per cubic metre (mg/m3) as total
29、carbon 3.8 residence time time period for the sampled gas to be transported from the inlet of the probe to the inlet of the measurement cell 3.9 response factor dimensionless quotient of the response of the FID with any carbon based compound or compounds to its response to propane, in each case refe
30、rred to the number of carbon atoms of the molecule 3.10 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 change in instrument response as a consequence of a stepwise change in the total orga
31、nic carbon concentration 3.11 span gas test gas used to check and adjust a specific point on a calibration curve 3.12 total volatile organic carbon (TVOC) total volatile organic compounds which are measured by the FID, expressed in milligrams per cubic metre (mg/m3) as total carbon 3.13 zero gas tes
32、t gas used to check and adjust the zero point on a calibration curve 3.14 uncertainty parameter associated with the result of a measurement, that characterises the dispersion of the values that could reasonably be attributed to the measurand SOURCE: ENV 13005 BS EN 12619:2013EN 12619:2013 (E) 6 4 Th
33、e principle of the technique 4.1 Flame ionisation detector (FID) The measurement technique utilised by the flame ionisation detector (FID) is the ionisation of organically bound carbon atoms in a hydrogen flame. The ionisation current measured by the FID depends on the number of C-atoms of organic c
34、ompounds burning in the fuel gas flame, the form of bonding (straight chain or branched chain) and of bonding partners. The response factor is a function of the specific design of the detector and the adjusted operating conditions. The advantage of the FID is that it responds to organic carbon compo
35、unds and has negligible response to inorganic flue gas compounds (such as CO, CO2, NO, H2O). A number of different instrument configurations exist. Figure 1 is an example of the principle whereby in the detector a sample gas is fed into a hydrogen flame across which a DC electrical potential is plac
36、ed. 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: static methods (with gas collectors or direct i
37、njection) 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 (C3H8) for which the response factor, defined in this standard, has been set at 1,00. The final value will be expressed as TVOC in
38、 milligrams per cubic metre. Refer to Annex B for more information on the use and effects of an FID instrument. Key 1 polarisation voltage 6 fuel gas 2 electrodes 7 sample gas 3 ions 8 jet 4 flame 9 amplifier and readout 5 combustion air Figure 1 Principle of FID BS EN 12619:2013EN 12619:2013 (E) 7
39、4.2 Sampling and sampling device Sampling is the process of extracting from the flue gas a partial volume flow which is representative of the composition of the main gas stream. A partial flow of the flue gas is directly fed into the FID analyser via the sampling probe, the particle filter and the h
40、eated sampling line. An example of the set-up of the measuring system is shown in Figure 2. The sampling device including the filter needed to remove fine particles, which could clog the burner, is heated to avoid sample condensation. Key 1 sampling probe 6 bypass (optional) 2 zero and span gas inle
41、t 7 test gas inlet for functional tests 3 particle filter, heated 8 FID 4 sampling line, heated 9 data evaluation system 5 external sample pump (optional), heated Figure 2 Example of the set-up of the measuring system 5 Requirements for apparatus and gases 5.1 Requirements for the measurement system
42、 The sampling system shall meet the following requirements: It shall be made of stainless steel, polytetrafluoroethylene or polypropylenefluoride. If an alternative material is used, it shall be proven that it is chemically and physically inert to the constituents of the flue gas under analysis. The
43、 design and configuration of the sampling device used shall ensure the residence time of the sample gas within the device is minimised in order to reduce the response time of the measuring system. It will be designed to ensure a sample residence time less than 60 s. With long sampling lines or high
44、flow resistance, the use of an external pump with bypass is recommended. It shall be heated throughout to at least 180 C. NOTE Sampling lines in PTFE have a maximum temperature of 200 C. All instruments that are certified are tested at 180 C. It shall have a heated filtering device upstream of the s
45、ampling line to trap all particles liable to impair the operation of the apparatus. It shall have an inlet for applying zero and span gases at or close to the probe inlet of the sampling probe, upstream of the filter. This is to check the sampling system including the filter assembly. The FID and sa
46、mpling system shall comply with the performance requirements of EN 15267-3. BS EN 12619:2013EN 12619:2013 (E) 8 The checks in Table 1 shall be carried out with at least the specified frequency. Table 1 Minimum frequency of checks for QA/QC during the operation Check Minimum frequency Requirement Cla
47、use Response time once for each measurement series 200 s A.2 Repeatability standard deviation at zero point once a year 2 % A.4 Repeatability standard deviation at span point once a year 2 % A.5 Lack of fit once a year and after repair aof the instrument 2 % A.3 Effect of oxygen at least once a year
48、 and after repair (can be carried out by the manufacturer) 2 % A.6 Other interference checks bat least once a year and after repair (can be carried out by the manufacturer) 2 % A.7 Response factor determination as specified by the manufacturer and is relevant for single compound measuring tasks A.8
49、and Annex B Sampling system check once for each measurement series 6.2.2 Leakage check once for each measurement series 6.2.2 Zero drift at the beginning and end of the measuring period and at least once a day 5 % 6.2.3 Span drift at the beginning and end of the measuring period and at least once a day 5 % 6.2.3 Regular maintenance of the analyser as required by the manufacturer Cleaning or changing of sampling line and particulate filters conce for each measurement series, if needed a A repair that might affect the
