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BS EN 17628:2022

BS EN 17628:2022

$215.11

Fugitive and diffuse emissions of common concern to industry sectors. Standard method to determine diffuse emissions of volatile organic compounds into the atmosphere

Published By Publication Date Number of Pages
BSI 2022 104
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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.

PDF Catalog

PDF Pages PDF Title
2 undefined
11 1 Scope
2 Normative references
3 Terms and definitions
14 4 Symbols and abbreviations
5 Principle
15 6 Measurement objectives
6.1 General
16 6.2 Quantification of site emissions
6.3 Quantification of section emissions
6.4 Quantification of main equipment emissions
17 6.5 Localization emission sources/leaks
7 Data quality objectives
7.1 General
7.2 Quantification of site emissions
18 7.3 Quantification of section emissions
7.4 Quantification of main equipment emissions
7.5 Detection/localization of emission sources
8 Overview of methods
8.1 Applicability and limitations of monitoring techniques
8.1.1 Applicability
19 8.1.2 Limitations
8.1.2.1 OGI
20 8.1.2.2 DIAL
8.1.2.3 SOF
8.1.2.4 TC
8.1.2.5 RDM
21 8.2 Specific methods
8.2.1 General
8.2.2 Differential Absorption Lidar (DIAL)
23 8.2.3 Solar Occultation Flux (SOF)
25 8.2.4 Tracer Correlation (TC)
27 8.2.5 Optical Gas Imaging (OGI)
29 8.2.6 Reverse Dispersion Modelling (RDM)
31 9 Meteorology data and measurements
32 10 Measurement strategy and measurement campaign planning
10.1 General
33 10.2 Measurement objectives
34 10.3 Measurement planning
10.3.1 Specification of measurement plan
10.3.2 Surveyed areas and equipment
10.3.3 Technical supervisor and personnel
10.3.4 Planning of the measurement dates
35 10.3.5 Planning of combined measurements
10.4 Preparation of the measurement campaign
10.4.1 Preparations by the plant operator
10.4.2 Preparations by the measurement provider
36 10.4.3 Preparations after arrival at the plant
10.5 Conducting the measurements
10.6 Calculation of results and measurement uncertainty
10.6.1 Calculation of results
10.6.2 Assessment of measurement uncertainty
10.6.2.1 General
10.6.2.2 Sources of uncertainty
37 10.6.2.3 Random uncertainty
39 10.6.2.4 Systematic effects
40 10.6.2.5 Estimating total uncertainty
41 10.7 Meteorology
42 11 Reporting
43 12 Results of the validation and demonstration field studies
12.1 General
12.2 First campaign: validation study
44 12.3 Second campaign: demonstration of the applicability of the methods
45 Annex A (normative)DIAL procedure
A.1 Performance requirements
46 A.2 Application of the method
A.2.1 Before campaign
47 A.2.2 Set-up and initial tasks
48 A.2.3 Daily tasks
49 A.2.4 Measurement strategy
51 A.3 Quality control
A.3.1 General
A.3.2 Spectroscopic calibration procedures
A.3.2.1 General
A.3.2.2 Calibration gases
52 A.3.2.3 Calibration cell
A.3.2.4 Spectral scans
A.3.2.5 Continuous spectral monitoring
A.3.2.6 Check of system performance
A.3.3 Meteorological sensors calibration
A.4 Data analysis
A.4.1 General
A.4.2 Background subtraction
53 A.4.3 Normalization for variation in transmitted energy
A.4.4 Calculation of path-integrated concentration
A.4.5 Derivation of range-resolved concentrations
A.4.6 Calculation of emission rates
54 A.5 Reporting
55 Annex B (normative)SOF procedure
B.1 Performance requirements
B.2 Application of the method
B.2.1 Before campaign
56 B.2.2 Set-up and initial tasks
57 B.2.3 Daily tasks
B.2.4 Measurement strategy
59 B.3 Quality control
B.3.1 General
B.3.2 Spectroscopic calibration procedures
B.3.2.1 General
B.3.2.2 Calibration
B.3.3 Meteorological sensors calibration
B.3.4 Required QC checks in the field
60 B.4 Data analysis
B.4.1 General
61 B.4.2 Calculation of column values
B.4.3 Calculation of emission rates
62 B.4.4 Estimation and localization of emission sources
63 B.4.5 Data validation procedures
64 B.5 Reporting
65 Annex C (normative)OGI procedure
C.1 Application of the method
C.1.1 General
C.1.2 Set-up, initial tasks and detection planning
66 C.1.3 Performance of the survey
68 C.2 Quality control
C.2.1 Test procedures
C.2.1.1 General
C.2.1.2 Basic requirements
C.2.1.3 Frequency
C.2.1.4 Operating mode
69 C.3 Data analysis
C.3.1 General
C.3.2 Database Management
C.3.3 Emission rate calculation and quantification
C.4 Reporting
C.4.1 General
C.4.2 Customer requirements
70 Annex D (normative)TC procedure
D.1 Performance requirements
D.2 Application of the method
D.2.1 Before campaign
71 D.2.2 Set-up and initial tasks
72 D.2.3 Daily tasks
D.2.4 Measurement strategy
74 D.3 Quality control
D.3.1 General
D.3.2 Calibration of gas sensors
D.3.3 Meteorological sensor calibration
D.3.4 Tracer release equipment calibration
D.3.5 Required QC checks in the field
75 D.4 Data analysis
D.4.1 Calculation of emission rates
D.4.2 Estimation and localization of emission sources
D.4.3 Data validation procedures
77 D.5 Reporting
78 Annex E (normative)RDM procedure
E.1 General
E.2 Performance requirements
79 E.3 Application of the method
E.3.1 Before campaign
80 E.3.2 Set-up and initial tasks
E.3.3 Daily Tasks
81 E.3.4 Measurement strategy
83 E.4 Quality control
E.4.1 General
E.4.2 Analyser calibration procedures
E.4.2.1 General
E.4.2.2 Calibration gases
E.4.2.3 Calibration bag
84 E.4.2.4 Continuous monitoring
E.4.2.5 Check of system performance
E.4.3 Meteorological sensor calibration
E.5 Data analysis
E.5.1 General
E.5.2 Background subtraction
E.5.3 Concentration conversion according to speciation
85 E.5.4 Calculation of emission rates
86 Annex F (informative)Meteorology
F.1 General
87 F.2 Principles of placement specific to the application on complex sites
88 F.3 Height(s)
89 F.4 Instrumentation choices for wind speed and direction
F.5 Performance requirements for wind speed and direction
90 F.6 Lidar profiles
F.7 Emission rate calculations
91 F.8 Averaging time suited to different measurement strategies
93 F.9 Spatial variation (physical separation of wind measurement and concentration measurement)
94 F.10 Accounting for low wind speed and atmospheric stability
96 F.11 Instrumentation choices for other relevant data (insolation, temperature, visibility, rain, time-reference)
F.11.1 General
F.11.2 Time reference
F.11.3 Measurement of atmospheric pressure
F.11.4 Measurement of air temperature
F.11.5 Measurement of the moisture content of air
97 F.11.6 Quality assurance
F.12 Reporting
98 Annex G (informative)Example of measurement uncertainty calculation

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BS EN 17628:2022
$215.11