EN 17628:2022
(Main)Fugitive and diffuse emissions of common concern to industry sectors - Standard method to determine diffuse emissions of volatile organic compounds into the atmosphere
Fugitive and diffuse emissions of common concern to industry sectors - Standard method to determine diffuse emissions of volatile organic compounds into the atmosphere
This document specifies the framework for determining emissions to the atmosphere of Volatile Organic Compounds (VOCs). It specifies a system of methods to detect and/or identify and/or quantify VOC emissions from industrial sources. These methods include Optical Gas Imaging (OGI), Differential Absorption Lidar (DIAL), Solar Occultation Flux (SOF), Tracer Correlation (TC), and Reverse Dispersion Modelling (RDM). It specifies the methodologies for carrying out all the above, and also the performance requirements and capabilities of the direct monitoring methods, the requirements for the results and their measurement uncertainties.
This document specifically addresses, but is not restricted to, the petrochemicals, oil refining, and chemical industries receiving, processing, storing, and/or exporting of VOCs, and includes the emissions of VOCs from the natural gas processing/conditioning industry and the storage of natural gas and similar fuels. The methods specified in this document have been validated at onshore facilities.
This document is applicable to diffuse VOC emissions to atmosphere but not to the emissions of VOCs into water and into solid materials such as soils. It is complementary to EN 15446 [9], the standardized method for the detection, localization of sources (individual leaks from equipment and piping), and quantification of fugitive VOC emissions within the scope of a Leak Detection and Repair Programme (LDAR).
This document has been validated for non-methane VOCs, but the methodology is in principle applicable to methane and other gases.
This document specifies methods to determine (detect, identify and/or quantify) VOC emissions during the periods of monitoring. It does not address the extrapolation of emissions to time periods beyond the monitoring period.
Fugitive und diffuse Emissionen von allgemeinem Interesse für Industriebereiche - Verfahren zur Bestimmung diffuser Emissionen flüchtiger organischer Verbindungen in die Atmosphäre
Dieses Dokument legt einen Rahmen zur Bestimmung von Emissionen flüchtiger organischer Verbindungen (VOCs) in die Atmosphäre fest. Es legt ein System von Verfahren zur Erkennung und/oder Identifizierung und/oder Quantifizierung von VOC Emissionen aus industriellen Quellen fest. Diese Verfahren umfassen die optische Gasdetektion (en: Optical Gas Imaging (OGI)), Differential Absorption Lidar (DIAL), Solar Occultation Flux (SOF), Tracer Korrelation (en: Tracer Correlation (TC)) und inverse Ausbreitungs¬rechnung (en: Reverse Dispersion Modelling (RDM)). Das Dokument legt die Methodik für die Ausführung der genannten Verfahren fest und definiert darüber hinaus die Leistungsanforderungen und Möglichkeiten dieser direkten Messverfahren sowie die Anforderungen an die Ergebnisse und ihre Messunsicherheiten.
Dieses Dokument richtet sich vor allem, aber nicht ausschließlich, an die petrochemische, ölverarbeitende und chemische Industrie, die VOCs transportieren, verarbeiten, lagern und/oder exportieren und zielt auch auf VOC Emissionen aus der Erdgas verarbeitenden/aufbereitenden Industrie und die Lagerung von Erdgas und ähnlichen Brennstoffen. Die in diesem Dokument festgelegten Verfahren wurden an Anlagen auf dem Festland validiert.
Dieses Dokument ist anzuwenden für diffuse VOC Emissionen in die Atmosphäre, nicht jedoch für VOC Emissionen in Wasser und feste Materialien wie Böden. Es ergänzt EN 15446 [9], das normierte Verfahren zur Erkennung, Lokalisierung von Quellen (einzelne Leckagen aus Anlagen und Rohrleitungen) und Quantifizierung fugitiver VOC Emissionen innerhalb des Anwendungsbereichs des Programms für Leckerkennung und -reparatur (en: leak detection and repair, LDAR).
Dieses Dokument wurde für Nichtmethan VOCs validiert, die Methodik ist jedoch grundsätzlich auf Methan und andere Gase anwendbar.
Dieses Dokument legt Verfahren zur Bestimmung (Erkennung, Identifizierung und/oder Quantifizierung) von VOC Emissionen während der Überwachungszeiträume fest. Es behandelt nicht die Extrapolation von Emissionen auf Zeiträume über die Überwachungszeiträume hinaus.
Émissions fugitives et diffuses concernant les secteurs industriels - Méthode normalisée pour la détermination des émissions diffuses de composés organiques volatils dans l'atmosphère
Le présent document spécifie le cadre pour la détermination des émissions dans l'atmosphère de composés organiques volatils (COV). Il spécifie un système de méthodes pour détecter et/ou identifier et/ou quantifier les émissions de COV provenant de sources industrielles. Ces méthodes comprennent l'imagerie optique de gaz (OGI), le lidar à absorption différentielle (DIAL), l'occultation solaire par le flux (SOF), le traçage gazeux (TC) et la modélisation inverse de la dispersion (RDM). Il spécifie les méthodologies permettant de mettre en œuvre tous les éléments ci-dessus, ainsi que les exigences de performances et les capacités des méthodes de surveillance directe, les exigences relatives aux résultats et leurs incertitudes de mesure.
Le présent document traite plus particulièrement, mais sans s'y limiter, de la pétrochimie, du raffinage du pétrole et des industries chimiques qui reçoivent, traitent, stockent et/ou exportent des COV, et inclut les émissions de COV provenant de l'industrie de traitement et de conditionnement du gaz naturel et du stockage du gaz naturel et de combustibles similaires. Les méthodes spécifiées dans le présent document ont été validées sur des installations terrestres.
Le présent document est applicable aux émissions diffuses de COV dans l'atmosphère, mais il ne s'applique pas aux émissions de COV dans l'eau et dans les matériaux solides tels que les sols. Il complète l'EN 15446 [9], méthode normalisée pour la détection, la localisation des sources (fuites individuelles d'équipements et de tuyauteries) et la quantification des émissions fugitives de COV dans le cadre d'un programme de détection et de réparation des fuites (LDAR).
Le présent document a été validé pour les COV non méthaniques, mais la méthodologie est en principe applicable au méthane et à d'autres gaz.
Le présent document spécifie les méthodes permettant de déterminer (détecter, identifier et/ou quantifier) les émissions de COV pendant les périodes de surveillance. Il ne traite pas de l'extrapolation des émissions sur des périodes postérieures à la période de surveillance.
Ubežne in razpršene emisije skupnega pomena za industrijske sektorje - Standardna metoda za določevanje razpršenih emisij hlapnih organskih spojin v ozračje
Ta dokument določa okvir za določanje emisij hlapnih organskih spojin (VOC) v ozračje. V njem je opredeljen sistem metod za zaznavanje in/ali identifikacijo in/ali količinsko opredelitev emisij hlapnih organskih spojin iz industrijskih virov. Te metode vključujejo optično odkrivanje plina (OGI), diferencialni absorpcijski LIDAR (DIAL), zasenčenje sončnega toka (SOF), korelacijsko metodo s slednim plinom (TC) in obratno disperzno modeliranje (RDM). Dokument določa metodologije za izvedbo vsega zgoraj navedenega, v njem pa so opredeljene tudi zahteve glede zmogljivosti in zmožnosti neposrednih metod spremljanja, zahteve za rezultate in njihove merilne negotovosti.
Ta dokument med drugim posebej obravnava petrokemično industrijo, industrijo rafiniranja nafte in kemično industrijo, ki sprejemajo, predelujejo, shranjujejo in/ali izvažajo hlapne organske spojine, in vključuje emisije hlapnih organskih spojin iz industrije predelave/kondicioniranja zemeljskega plina ter skladiščenja zemeljskega plina in podobnih goriv.
Ta dokument obravnava razpršene emisije hlapnih organskih spojin v ozračje, vendar izključuje emisije hlapnih organskih spojin v vodo in trdne materiale, kot so tla. Dopolnjuje standard EN 15446 [9], ki zajema odkrivanje, lokalizacijo virov (posamezne točke puščanja iz opreme in cevi) ter količinsko opredelitev nezajetih emisij hlapnih organskih spojin v okviru programa za odkrivanje in odpravo puščanja (LDAR).
Ta dokument je bil odobren za nemetanske hlapne organske spojine, vendar se lahko metodologije načeloma uporabljajo za metan in druge pline.
V tem dokumentu so opredeljene metode za določanje (zaznavanje, identifikacijo in/ali količinsko opredelitev) emisij hlapnih organskih spojin v obdobjih spremljanja. V njem niso obravnavane ekstrapolacije emisij na časovna obdobja zunaj obdobij spremljanja.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2022
Ubežne in razpršene emisije skupnega pomena za industrijske sektorje -
Standardna metoda za določevanje razpršenih emisij hlapnih organskih spojin v
ozračje
Fugitive and diffuse emissions of common concern to industry sectors - Standard
method to determine diffuse emissions of volatile organic compounds into the
atmosphere
Fugitive und diffuse Emissionen von allgemeinem Interesse für Industriebereiche -
Verfahren zur Bestimmung diffuser Emissionen flüchtiger organischer Verbindungen in
die Atmosphäre
Émissions fugitives et diffuses concernant les secteurs industriels - Méthode normalisée
pour la détermination des émissions diffuses de composés organiques volatils dans
l'atmosphère
Ta slovenski standard je istoveten z: EN 17628:2022
ICS:
13.040.40 Emisije nepremičnih virov Stationary source emissions
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 17628
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2022
EUROPÄISCHE NORM
ICS 13.040.40
English Version
Fugitive and diffuse emissions of common concern to
industry sectors - Standard method to determine diffuse
emissions of volatile organic compounds into the
atmosphere
Émissions fugitives et diffuses concernant les secteurs Fugitive und diffuse Emissionen von allgemeinem
industriels - Méthode normalisée pour la Interesse für Industriebereiche - Verfahren zur
détermination des émissions diffuses de composés Bestimmung diffuser Emissionen flüchtiger
organiques volatils dans l'atmosphère organischer Verbindungen in die Atmosphäre
This European Standard was approved by CEN on 13 March 2022.
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-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). 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, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17628:2022 E
worldwide for CEN national Members.
Contents Page
European foreword . 7
Introduction . 8
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 9
4 Symbols and abbreviations . 12
5 Principle . 12
6 Measurement objectives . 13
6.1 General . 13
6.2 Quantification of site emissions . 14
6.3 Quantification of section emissions . 14
6.4 Quantification of main equipment emissions . 14
6.5 Localization emission sources/leaks . 15
7 Data quality objectives . 15
7.1 General . 15
7.2 Quantification of site emissions . 15
7.3 Quantification of section emissions . 16
7.4 Quantification of main equipment emissions . 16
7.5 Detection/localization of emission sources . 16
8 Overview of methods . 16
8.1 Applicability and limitations of monitoring techniques . 16
8.1.1 Applicability . 16
8.1.2 Limitations . 17
8.2 Specific methods . 19
8.2.1 General . 19
8.2.2 Differential Absorption Lidar (DIAL) . 19
8.2.3 Solar Occultation Flux (SOF) . 21
8.2.4 Tracer Correlation (TC) . 23
8.2.5 Optical Gas Imaging (OGI) . 25
8.2.6 Reverse Dispersion Modelling (RDM) . 27
9 Meteorology data and measurements . 29
10 Measurement strategy and measurement campaign planning . 30
10.1 General . 30
10.2 Measurement objectives . 31
10.3 Measurement planning . 32
10.3.1 Specification of measurement plan . 32
10.3.2 Surveyed areas and equipment . 32
10.3.3 Technical supervisor and personnel . 32
10.3.4 Planning of the measurement dates . 32
10.3.5 Planning of combined measurements . 33
10.4 Preparation of the measurement campaign . 33
10.4.1 Preparations by the plant operator . 33
10.4.2 Preparations by the measurement provider . 33
10.4.3 Preparations after arrival at the plant . 34
10.5 Conducting the measurements . 34
10.6 Calculation of results and measurement uncertainty . 34
10.6.1 Calculation of results . 34
10.6.2 Assessment of measurement uncertainty . 34
10.7 Meteorology . 39
11 Reporting . 40
12 Results of the validation and demonstration field studies . 41
12.1 General . 41
12.2 First campaign: validation study . 41
12.3 Second campaign: demonstration of the applicability of the methods . 42
Annex A (normative) DIAL procedure . 43
A.1 Performance requirements . 43
A.2 Application of the method . 44
A.2.1 Before campaign . 44
A.2.2 Set-up and initial tasks . 45
A.2.3 Daily tasks . 46
A.2.4 Measurement strategy . 47
A.3 Quality control . 49
A.3.1 General . 49
A.3.2 Spectroscopic calibration procedures . 49
A.3.2.1 General . 49
A.3.2.2 Calibration gases . 49
A.3.2.3 Calibration cell . 50
A.3.2.4 Spectral scans . 50
A.3.2.5 Continuous spectral monitoring . 50
A.3.2.6 Check of system performance . 50
A.3.3 Meteorological sensors calibration. 50
A.4 Data analysis . 50
A.4.1 General . 50
A.4.2 Background subtraction . 50
A.4.3 Normalization for variation in transmitted energy . 51
A.4.4 Calculation of path-integrated concentration . 51
A.4.5 Derivation of range-resolved concentrations . 51
A.4.6 Calculation of emission rates . 51
A.5 Reporting . 52
Annex B (normative) SOF procedure . 53
B.1 Performance requirements . 53
B.2 Application of the method . 53
B.2.1 Before campaign . 53
B.2.2 Set-up and initial tasks . 54
B.2.3 Daily tasks . 55
B.2.4 Measurement strategy . 55
B.3 Quality control . 57
B.3.1 General . 57
B.3.2 Spectroscopic calibration procedures . 57
B.3.2.1 General . 57
B.3.2.2 Calibration . 57
B.3.3 Meteorological sensors calibration . 57
B.3.4 Required QC checks in the field . 57
B.4 Data analysis . 58
B.4.1 General . 58
B.4.2 Calculation of column values . 59
B.4.3 Calculation of emission rates . 59
B.4.4 Estimation and localization of emission sources. 60
B.4.5 Data validation procedures . 61
B.5 Reporting . 62
Annex C (normative) OGI procedure . 63
C.1 Application of the method . 63
C.1.1 General . 63
C.1.2 Set-up, initial tasks and detection planning . 63
C.1.3 Performance of the survey . 64
C.2 Quality control . 66
C.2.1 Test procedures . 66
C.2.1.1 General . 66
C.2.1.2 Basic requirements . 66
C.2.1.3 Frequency . 66
C.2.1.4 Operating mode . 66
C.3 Data analysis . 67
C.3.1 General . 67
C.3.2 Database Management . 67
C.3.3 Emission rate calculation and quantification . 67
C.4 Reporting . 67
C.4.1 General . 67
C.4.2 Customer requirements . 67
Annex D (normative) TC procedure . 68
D.1 Performance requirements . 68
D.2 Application of the method . 68
D.2.1 Before campaign . 68
D.2.2 Set-up and initial tasks . 69
D.2.3 Daily tasks . 70
D.2.4 Measurement strategy . 70
D.3 Quality control . 72
D.3.1 General . 72
D.3.2 Calibration of gas sensors . 72
D.3.3 Meteorological sensor calibration. 72
D.3.4 Tracer release equipment calibration . 72
D.3.5 Required QC checks in the field . 72
D.4 Data analysis . 73
D.4.1 Calculation of emission rates . 73
D.4.2 Estimation and localization of emission sources . 73
D.4.3 Data validation procedures . 73
D.5 Reporting . 75
Annex E (normative) RDM procedure . 76
E.1 General . 76
E.2 Performance requirements . 76
E.3 Application of the method . 77
E.3.1 Before campaign . 77
E.3.2 Set-up and initial tasks . 78
E.3.3 Daily Tasks . 78
E.3.4 Measurement strategy . 79
E.4 Quality control . 81
E.4.1 General . 81
E.4.2 Analyser calibration procedures . 81
E.4.2.1 General . 81
E.4.2.2 Calibration gases . 81
E.4.2.3 Calibration bag . 81
E.4.2.4 Continuous monitoring. 82
E.4.2.5 Check of system performance . 82
E.4.3 Meteorological sensor calibration. 82
E.5 Data analysis . 82
E.5.1 General . 82
E.5.2 Background subtraction . 82
E.5.3 Concentration conversion according to speciation . 82
E.5.4 Calculation of emission rates . 83
Annex F (informative) Meteorology . 84
F.1 General . 84
F.2 Principles of placement specific to the application on complex sites . 85
F.3 Height(s) . 86
F.4 Instrumentation choices for wind speed and direction . 87
F.5 Performance requirements for wind speed and direction . 87
F.6 Lidar profiles . 88
F.7 Emission rate calculations . 88
F.8 Averaging time suited to different measurement strategies . 89
F.9 Spatial variation (physical separation of wind measurement and concentration
measurement) . 91
F.10 Accounting for low wind speed and atmospheric stability . 92
F.11 Instrumentation choices for other relevant data (insolation, temperature, visibility,
rain, time-reference) . 94
F.11.1 General . 94
F.11.2 Time reference . 94
F.11.3 Measurement of atmospheric pressure . 94
F.11.4 Measurement of air temperature . 94
F.11.5 Measurement of the moisture content of air. 94
F.11.6 Quality assurance . 95
F.12 Reporting . 95
Annex G (informative) Example of measurement uncertainty calculation . 96
Bibliography . 99
European foreword
This document (EN 17628:2022) 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 publication of an
identical text or by endorsement, at the latest by October 2022, and conflicting national standards shall
be withdrawn at the latest by October 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN 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.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United
Kingdom.
Introduction
0.1 Background
This document has been developed to provide a framework for the selection and use of monitoring
methods to determine (detect, identify and/or quantify) the emission to the air of volatile organic
compounds (VOC) from diffuse sources, in particular due to the storage, transfer and handling
(loading/unloading) of such compounds, within certain industrial sectors. It has primarily been
developed to meet the needs of the European Best Available Technique Reference (BREF) document for
the refining of mineral oil and gas [1] including the Commission implementing decision [2] establishing
best available techniques (BAT) conclusions, under Directive 2010/75/EU [3] on industrial emissions,
for the refining of mineral oil and gas.
Emissions of VOCs from anthropogenic, biogenic and other natural sources contribute to the formation
of ozone and other pollutants in the atmosphere which are detrimental to human health and damaging
to the environment. Better determination of the anthropogenic contribution can help reduce these
impacts. A wide range of human activities can give rise to emissions (e.g. industrial processes, transport,
the storage and handling of fuels and chemicals, end use of VOC containing products, etc.). Emission
sources can be complex and diffuse sources are difficult to determine accurately. Their determination has
hitherto required the use of specific measurement and estimation methods not subject to
standardization. By setting out appropriate standardization criteria and demonstrating their use with
certain techniques, the determination of diffuse VOC should be improved, assisting the management of
emissions and consequential benefits.
0.2 European context
National reduction targets for VOC emissions to air in European countries are regulated through the
Gothenburg Protocol [4] of the UN-ECE Convention on Long-range Trans-boundary Air Pollution
(CLRTAP) and, additionally, for the EU Member States and the EU as a whole by the National Emission
Ceilings Directive (2016/2284/EU [5]). Annual reporting of emissions is required under both
instruments.
National emissions are the sum of sectoral emissions. Within the EU sectoral emissions are regulated to
enable the national commitment to be met. For the largest industrial sectors, the principle instrument is
the Industrial Emissions Directive (Directive 2010/75/EU [3]). The Industrial Emissions Directive (IED)
sets minimum emission standards for certain pollutants in key sectors but, more importantly, sets out
formal guidance to permitting authorities on the emissions, to both air and water and expressed as
concentrations or loads that might be achieved through the application of Best Available Technology
(BAT). Conclusions on BAT (BATC) are published in the Journal of the European Union and have legal
status. The BATC are derived through a formal process (the Sevilla Process) of data collection and
appraisal recorded in Best Available Techniques Reference documents (BREFs). BREFs provide context
and guidance for the interpretation of the BATC. The IED sets out a requirement to review, and if
necessary, revise, each sectoral BREF on an 8-year cycle.
This document supports BATCs that require diffuse VOC emissions to be assessed and reported. These
are, at the time of writing, set out in:
— Mineral Oil and Gas Refineries [2] (BAT 6);
— Common Waste Water and Waste Gas in the Chemical Sector [6] (BAT 5);
— Common Waste Gas Management and Treatment Systems in the Chemical Sector (BAT 22) [7].
General information on Monitoring for Diffuse Emissions can be found in the JRC Reference Report on
Monitoring of Emissions to Air and Water from IED Installations (EUR 29261 EN) [8].
1 Scope
This document specifies the framework for determining emissions to the atmosphere of Volatile Organic
Compounds (VOCs). It specifies a system of methods to detect and/or identify and/or quantify VOC
emissions from industrial sources. These methods include Optical Gas Imaging (OGI), Differential
Absorption Lidar (DIAL), Solar Occultation Flux (SOF), Tracer Correlation (TC), and Reverse Dispersion
Modelling (RDM). It specifies the methodologies for carrying out all the above, and also the performance
requirements and capabilities of the direct monitoring methods, the requirements for the results and
their measurement uncertainties.
This document specifically addresses, but is not restricted to, the petrochemicals, oil refining, and
chemical industries receiving, processing, storing, and/or exporting of VOCs, and includes the emissions
of VOCs from the natural gas processing/conditioning industry and the storage of natural gas and similar
fuels. The methods specified in this document have been validated at onshore facilities.
This document is applicable to diffuse VOC emissions to atmosphere but not to the emissions of VOCs into
water and into solid materials such as soils. It is complementary to EN 15446 [9], the standardized
method for the detection, localization of sources (individual leaks from equipment and piping), and
quantification of fugitive VOC emissions within the scope of a Leak Detection and Repair Programme
(LDAR).
This document has been validated for non-methane VOCs, but the methodology is in principle applicable
to methane and other gases.
This document specifies methods to determine (detect, identify and/or quantify) VOC emissions during
the periods of monitoring. It does not address the extrapolation of emissions to time periods beyond the
monitoring period.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition 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 60825-1:2014, Safety of laser products – Part 1: Equipment classification and requirements
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp/ui
3.1
detection
recognition of the presence of an emission source in a certain area
3.2
localisation
determination with a certain degree of precision of the position of an emission
3.3
quantification
determination of an emission rate
3.4
site
area within a defined perimeter where emissions might take place
3.5
section
delimited area within a site usually having a specific function
3.6
main equipment
delimited piece of equipment
Note 1 to entry: Examples are compressor, distillation tower, individual basin, individual storage tank and water
separator.
3.7
component
assembly or mechanical part of an item of main equipment
Note 1 to entry: Examples are fitting, flange, pump, seal, valve.
3.8
volatile organic compound
VOC
organic compound having a vapour pressure of 0,01 kPa or more at 293,15 K or having the corresponding
volatility under the conditions of use
[SOURCE: Directive 2010/75/EC [3], modified]
Note 1 to entry: Care is necessary in the use of the term VOC, as there are many different definitions in common
use. In some contexts, VOC excludes methane or methane and ethane. It is recommended to clearly state which
range of compounds is reported as VOC.
3.9
organic compound
compound containing at least the element carbon and one or more hydrogen, halogens, oxygen, sulphur,
phosphorous, silicon or nitrogen, with the exception of carbon oxides and inorganic carbonates and
bicarbonates
[SOURCE: Directive 2010/75/EC [3]]
3.10
emission
discharge of substances into the atmosphere
Note 1 to entry: This term comprises four types of emission sources:
— Accounted channelled emissions (from monitored stacks);
— Unaccounted channelled emissions (from, e.g. vents, flares);
— Fugitive emissions (leaks from, e.g. valves, seals);
— Area emissions (from, e.g. water treatment basins, coke storage).
3.11
fugitive emission
emission to the atmosphere caused by loss of tightness of an item which is designed to be tight
[SOURCE: EN 15446:2008 [9]]
3.12
diffuse emission
emission to the atmosphere from an identified site or facility, not specifically directed to identified stack
emission points
Note 1 to entry: This term comprises the sum of various unaccounted channelled emissions, fugitive emissions
and area emissions.
3.13
expanded uncertainty
quantity defining an interval about the result of a measurement that may be expected to encompass a
large fraction of the distribution of values that could reasonably be attributed to the measurand
Note 1 to entry: The fraction may be viewed as the coverage probability or level of confidence of the interval.
Note 2 to entry: To associate a specific level of confidence with the interval defined by the expanded uncertainty
requires explicit or implicit assumptions regarding the probability distribution characterized by the measurement
result and its combined standard uncertainty. The level of confidence that may be attributed to this interval can be
known only to the extent to which such assumptions may be justified.
Note 3 to entry: Expanded uncertainty is termed overall uncertainty in paragraph 5 of Recommendation INC-1
(1980).
[SOURCE: ISO/IEC Guide 98-3:2008 [10]]
3.14
detection limit
minimum concentration of a substance which produces an observable response, which is two times the
standard deviation at zero
[SOURCE: EN 12619:2013 [11]]
4 Symbols and abbreviations
API American Petroleum Institute
ATEX ATmosphères EXplosibles
DIAL Differential Absorption Lidar
DQO Data Quality Objective
FID Flame Ionization Detector
FTIR Fourier Transform Infrared
HITRAN HIgh Resolution TRANsmission
IR Infrared
LDAR Leak Detection and Repair
LIDAR Light Detection and Ranging
OGI Optical Gas Imaging
PID Photo Ionization Detector
PPE Personal Protective Equipment
RDM Reverse Dispersion Modelling
SOF Solar Occultation Flux
TC Tracer Correlation
VOC Volatile Organic Compound
WMO World Meteorological Organization
5 Principle
This document provides a framework for a number of complementary methods (DIAL, SOF, OGI, TC, and
RDM) used to determine diffuse VOC emissions. It provides performance requirements and quality
assurance procedures to ensure the corr
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