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STACK EMISSIONS MONITORING REPORT
2-4 Langlands Place Kelvin South Business Park East
Kilbride G75 0YF
Tel: 01355 246 730 Fax: 01355 249 669
Your contact at SOCOTEC UK LTD
David Hay Business Manager - North Tel:
01355 246 730 Email: [email protected]
Operator & Address:
Medite Europe Ltd. Redmonstown
Clonmel Co. Tipperary
Ireland
Permit Reference: IPPC Licence: P0027-04
Release Point:
A2.21 (EP9)
Sampling Date(s): 21st November - 24th November
SOCOTEC UK Job Number: Report Date:
Version:
LEK 10916 / Q4 5th January 2018
1 Report By: MCERTS Number: MCERTS Level: Technical Endorsements:
Hugh Mcmahon MM 15 1347 MCERTS Level 2 - Team Leader 1, 2, 3 & 4
Report Approved By: MCERTS Number: Business Title: Technical Endorsements:
Signature:
Andrew O'Neill MM 08 985 MCERTS Level 2 - Team Leader 1, 2, 3 & 4
SOCOTEC UK Reporting Template v1 Page 1 of 35
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Medite Europe Ltd. Clonmel A2.21 (EP9)
LEK 10916 / Q4 / Version 1 21st November - 24th November
IPPC Licence: P0027-04 Page 2 of 35
CONTENTS
EXECUTIVE SUMMARY
Stack Emissions Monitoring Objectives
- Plant
- Operator
- Stack Emissions Monitoring Test House
Emissions Summary
Monitoring Times
Process Details
Monitoring Methods
Analytical Methods
- Sampling Methods with Subsequent Analysis
- On-Site Testing
Sampling Location
- Sampling Plane Validation Criteria
- Duct Characteristics
- Sampling Lines & Sample Points
- Sampling Platform
- Sampling Location / Platform Improvement Recommendations
Sampling and Analytical Method Deviations
APPENDICES
APPENDIX 1 - Monitoring Schedule, Calibration Checklist & Monitoring Team
APPENDIX 2 - Summaries, Calculations, Raw Data and Charts
APPENDIX 3 - Measurement Uncertainty Budget Calculations
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Medite Europe Ltd. Clonmel A2.21 (EP9)
LEK 10916 / Q4 / Version 1 21st November - 24th November
IPPC Licence: P0027-04 Page 3 of 35
EXECUTIVE SUMMARY
MONITORING OBJECTIVES
Medite Europe Ltd. operates a wood fibre drier process at Clonmel which is subject to IPPC Licence P0027-04, under the EPA Act 1992.
SOCOTEC UK LTD were commissioned by Medite Europe Ltd. to carry out stack emissions monitoring to determine the release of prescribed pollutants from the following Plant under normal operating conditions.
The results of these tests shall be used to demonstrate compliance with a set of emission limit values for prescribed pollutants as specified in the Plant's IPPC Licence, P0027-04.
Plant
A2.21 (EP9)
Operator
Medite Europe Ltd.
Redmonstown
Clonmel
Co. Tipperary
Ireland
IPPC Licence: P0027-04
Stack Emissions Monitoring Test House
SOCOTEC UK - East Kilbride Laboratory 2-4 Langlands Place Kelvin South Business Park East Kilbride G75 0YF UKAS and MCERTS Accreditation Number: 1015
Opinions and interpretations expressed herein are outside the scope of UKAS accreditation. MCERTS accredited results will only be claimed where both the sampling and analytical stages are UKAS accredited. This test report shall not be reproduced, except in full, without written approval of SOCOTEC UK LTD.
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LEK 10916 / Q4 / Version 1 21st November - 24th November
IPPC Licence: P0027-04 Page 4 of 35
EXECUTIVE SUMMARY
EMISSIONS SUMMARY Parameter Units Result Calculated
Uncertainty +/-
Limit MCERTS accredited
result Total Particulate Matter Particulate Emission Rate
mg/m³ g/hr
20.2 6615
0.66 205.1
20 - √
Isocyanates Isocyanates Emission Rate
mg/m³ g/hr
0.002 0.60
0.000 0.104
0.06 - √
Oxides of Nitrogen (as NO2) Oxides of Nitrogen (as NO2) Emission Rate
mg/m³ g/hr
92.28 21658
4.57 1072.7
110 - √
Carbon Monoxide Carbon Monoxide Emission Rate
mg/m³ g/hr
46.12 10825
4.99 1171.29
600 - √
Oxygen % v/v 18.6 3.5 - √ Moisture % 11.6 0.29 - √ Stack Gas Temperature oC 62 - -
√
Stack Gas Velocity m/s 19.5 0.45 - Gas Volumetric Flow Rate (Actual) m³/hr 291455 14840 - Gas Volumetric Flow Rate (STP, Wet) m³/hr 234700 11951 - Gas Volumetric Flow Rate (STP, Dry) m³/hr 207590 10570 - Gas Volumetric Flow Rate at Reference Conditions m³/hr 234700 11951 174160 ND = None Detected, Results at or below the limit of detection are highlighted by bold italic text. The above volumetric flow rate is calculated using data from the preliminary survey. Mass emissions for non isokinetic tests are calculated using these values. For all isokinetic testing the mass emission is calculated using test specific flow data and not the above values. Reference conditions are 273K, 101.3kPa without correction for water vapour
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LEK 10916 / Q4 / Version 1 21st November - 24th November
IPPC Licence: P0027-04 Page 5 of 35
EXECUTIVE SUMMARY
MONITORING TIMES Parameter Sampling Date(s) Sampling Times Sampling Duration
Total Particulate Matter Run 1 21 November 2017 10:04 - 11:04 60 minutes Isocyanates Run 1 21 November 2017 12:18 - 13:18 60 minutes Combustion Gases 21 November 2017 10:55 - 11:55 60 minutes Preliminary Stack Traverse 21 November 2017 09:55 -
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LEK 10916 / Q4 / Version 1 21st November - 24th November
IPPC Licence: P0027-04 Page 6 of 35
EXECUTIVE SUMMARY
PROCESS DETAILS
Parameter Process Details Description of process
Continuous or batch
Product Details
Part of batch to be monitored (if applicable)
Normal load, throughput or continuous rating
Fuel used during monitoring
Abatement
Plume Appearance
Wood fibre drier
Continuous
Wood fibre board
N/A
Normal
N/A
Cyclone
Heavy moisture plume visible
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Medite Europe Ltd. Clonmel A2.21 (EP9)
LEK 10916 / Q4 / Version 1 21st November - 24th November
IPPC Licence: P0027-04 Page 7 of 35
EXECUTIVE SUMMARY
Monitoring Methods
The selection of standard reference / alternative methods employed by SOCOTEC UK is determined, wherever possible by the hierarchy of method selection outlined in Environment Protection Agency Technical Guidance Note (Monitoring) AG2.
MONITORING METHODS Species Method
Standard Reference Method / Alternative Method
SOCOTEC UK Technical Procedure
UKAS Lab Number
MCERTS Accredited
Method
Limit of Detection
(LOD)
Calculated MU
+/- % TPM SRM - EN 13284-1 AE 104 1015 Yes 0.19 mg/m³ 3.1%
Isocyanates SRM - US EPA CTM 036 AE 116 1015 Yes 0.0002 mg/m³ 17.4% NOX SRM - EN 14792:2017 AE 102 1015 Yes 0.45 mg/m³ 5.0% CO SRM - EN 15058:2017 AE 102 1015 Yes 0.24 mg/m³ 10.8% O2 AM - EN 14789:2017 AE 102 1015 Yes 0.01% 18.6%
H2O SRM - EN 14790 AE 105 1015 Yes 0.01% 2.54% Velocity SRM - EN ISO 16911-1 AE 154 1015 Yes 5 Pa 2.33%
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LEK 10916 / Q4 / Version 1 21st November - 24th November
IPPC Licence: P0027-04 Page 8 of 35
EXECUTIVE SUMMARY
Analytical Methods
The following tables list the analytical methods employed together with the custody and archiving details:
SAMPLING METHODS WITH SUBSEQUENT ANALYSIS Species Analytical Technique Analytical
Procedure UKAS Lab
Number UKAS Accredited
Lab Analysis Analysis Lab Sample
Archive Location
Archive
Period
TPM Gravimetric
AE 106 1015
Yes SOCOTEC UK (East Kilbride)
SOCOTEC UK (East Kilbride)
8 Weeks
Isocyanates High performance Liquid
Chromatography - Ultra Violet
AE 116 0605
Yes RPS
RPS 8 Weeks
ON-SITE TESTING Species Analytical Technique Analytical
Procedure UKAS Lab
Number MCERTS
Accredited
Analysis
Laboratory Data
Archive Location
Archive
Period
NOX
Chemiluminescence
AE 102 1015
Yes SOCOTEC UK (East Kilbride)
SOCOTEC UK (East Kilbride)
5 years
CO
Non Dispersive Infra Red
AE 102 1015
Yes SOCOTEC UK (East Kilbride)
SOCOTEC UK (East Kilbride)
5 years
O2
Zirconia Cell
AE 102 1015
Yes SOCOTEC UK (East Kilbride)
SOCOTEC UK (East Kilbride)
5 years
H2O
Gravimetric
AE 105 1015
Yes SOCOTEC UK (East Kilbride)
-
-
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LEK 10916 / Q4 / Version 1 21st November - 24th November
IPPC Licence: P0027-04 Page 9 of 35
SAMPLING LINES & POINTS Isokinetic
Non-Iso & Gases Sample port size
Number of lines used
Number of points / line
Duct orientation
Filtration Filtration for TPM
4" Non BSP
1
1
Vertical
- Out Stack
4" Non BSP
1
1
Vertical
In Stack -
EXECUTIVE SUMMARY
SAMPLING LOCATION Sampling Plane Validation Criteria Value Units Requirement Compliant Method Lowest Differential Pressure
Lowest Gas Velocity
Highest Gas Velocity
Ratio of Gas Velocities
Mean Velocity
Maximum angle of flow with regard to duct axis
No local negative flow
1
1.2
35.5
29.3
19.5
NM
Yes
Pa
m/s
m/s
: 1
m/s o
-
>= 5 Pa
-
-
< 3 : 1
-
< 15o
-
No
-
-
No
-
-
Yes
BS EN 15259
-
-
BS EN 15259
-
BS EN 15259
BS EN 15259
DUCT CHARACTERISTICS Value Units Shape
Depth
Width
Area
Port Depth
Circular
2.30
-
4.16
90
- m
m
m2
mm
SAMPLING PLATFORM General Platform Information Permanent / Temporary Platform / Ground level / Floor Level / Roof
Inside / Outside Permanent
Outside
AG1 Platform requirements
Is there a sufficient working area so work can be performed in a compliant manner
Platform has 2 levels of handrails (approximately 0.5 m & 1.0 m high)
Platform has vertical base boards (approximately 0.25 m high)
Platform has removable chains / self closing gates at the top of ladders
Handrail / obstructions do not hamper insertion of sampling equipment
Depth of Platform = >Stack depth / diameter + wall and port thickness + 1.5m
Sampling Platform Improvement Recommendations (if applicable)
No
Yes
Yes
Yes
No
No
Although the monitoring position doesn't comply with most of the sampling plane validation criteria described in AG1, EN 15259, EN 16911-1, it is the safest & only real means of access practically possible to sample at this sampling point.
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LEK 10916 / Q4 / Version 1 21st November - 24th November
IPPC Licence: P0027-04 Page 10 of 35
EXECUTIVE SUMMARY
Sampling & Analytical Method Deviations
Nozzle size
Due to the high velocities at the sampling point selected in the stack a 4mm nozzle was required to achieve isokinetic monitoring, this does not completely adhere to EN 13284-1.
Sample Line & Sample Point
It was only possible to sample from one representative sampling point for all isokinetic monitoring due to a number of factors i.e. flow being excessively high, swirl being greater than 15° & negative flow experienced throughout sample point locations. This sampling location does not therefore comply with all the requirements of AG1 & IS EN 16911-1.
Velocity & Volumetric Flow Rates
As this sampling location shows high levels of turbulence throughout the results from the standard flow traverse are only indicative. In the past, reports detailing the volumetric flow rate according to fan rating have been used to calculate mass emission rates for this stack.
Negative Flow
During instances of negative flow during the traverse a default figure of 0.01 mmH2O was entered into the traverse data spreadsheet.
Flow Traverse
Due to the erratic nature of the flow at the sampling position a 45 point flow traverse was carried out on each line.
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LEK 10916 / Q4 / Version 1 21st November - 24th November
IPPC Licence: P0027-04 Page 11 of 35
APPENDICES
CONTENTS
APPENDIX 1 - Monitoring Schedule, Calibration Checklist & Monitoring Team
APPENDIX 2 - Summaries, Calculations, Raw Data and Charts
APPENDIX 3 - Measurement Uncertainty Budget Calculations
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LEK 10916 / Q4 / Version 1 21st November - 24th November
IPPC Licence: P0027-04 Page 12 of 35
APPENDIX 1 - Monitoring Schedule, Calibration Checklist & Monitoring Team
MONITORING SCHEDULE Species Method
Standard Reference Method / Alternative Method
SOCOTEC UK Technical Procedure
UKAS Lab Number
MCERTS Accredited
Method
Number of Samples
TPM SRM - EN 13284-1 AE 104 1015 Yes 1 Isocyanates SRM - US EPA CTM 036 AE 116 1015 Yes 1
NOx SRM - EN 14792:2017 AE 102 1015 Yes 1 CO SRM - EN 15058:2017 AE 102 1015 Yes 1 O2 AM - EN 14789:2017 AE 102 1015 Yes 1
H2O SRM - EN 14790 AE 105 1015 Yes 1 Velocity SRM - EN ISO 16911-1 AE 154 1015 Yes 1
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LEK 10916 / Q4 / Version 1 21st November - 24th November
IPPC Licence: P0027-04 Page 13 of 35
APPENDIX 1 - Monitoring Schedule, Calibration Checklist & Monitoring Team
CALIBRATEABLE EQUIPMENT CHECKLIST Extractive Sampling Instrumental Analyser/s Miscellaneous
Equipment Equipment I.D. Equipment Equipment I.D. Equipment Equipment I.D.
Control Box DGM Box
Thermocouples Meter In
Thermocouple Meter Out
Thermocouple Control
Box Timer
Oven Box
Probe
Probe Thermocouple
Probe
Probe Thermocouple
S-Pitot
L-Pitot
Site Balance
Last Impinger Arm
Dioxins Cond. Thermocouple
Callipers Small
DGM Heater
Controller
Inclinometer (Swirl Device)
LEK 9.30
LEK 9.30
LEK 9.31
LEK 9.31
LEK LEK 17.11
LEK
LEK LEK 6.2
LEK LEK 3.7
-
-
LEK LEK 9.18
-
LEK LEK 23.12
-
-
-
-
-
LEK LEK 24.10
Horiba PG-250 Analyser
FT-IR Gasmet
FT-IR Oven Box
Bernath 3006 FID
Signal 3030 FID
Servomex
JCT Heated Head Filter
Thermo FID
Stackmaster
FTIR Heater Box for Heated Line
Anemometer
Ecophysics NOx Analyser
Chiller (JCT/MAK 10)
Heated Line Controller (1)
Heated Line Controller (2)
Site temperature Logger
LEK LEK 12.2
LEK
-
-
-
-
-
LEK
-
-
-
-
-
LEK LEK 8.23
-
-
-
-
-
Laboratory Balance
Tape Measure
Stopwatch
Protractor
Barometer
Digital Micromanometer
Digital Temperature Meter
Stack Thermocouple
Mass Flow Controller
MFC Display module
1m Heated Line (1)
1m Heated Line (2)
1m Heated Line (3)
5m Heated Line (1)
10m Heated Line (1)
10m Heated Line (2)
15m Heated Line (1)
20m Heated Line (1)
20m Heated Line (2)
-
-
LEK LEK 17.11
-
LEK LEK 16.8
-
-
LEK LEK 3.90
-
-
-
-
-
-
-
-
-
LEK LEK 8.23
- NOTE: If the equipment I.D is represented by a dash (-), then this piece of equipment has not been used for this test.
CALIBRATION GASES
Gas (traceable to ISO 17025) Cylinder I.D
Number
Supplier
ppm
% Analytical Tolerance +/- %
Nitric Oxide
Carbon Monoxide HPC1058
HPC1058 BOC
BOC 200
80 -
- 2.0
2.0 - - - - - -
STACK EMISSIONS MONITORING TEAM
MONITORING TEAM
Personnel MCERTS Number
MCERTS TE / H&S Qualifications and Expiry Date Level Expiry TE1 TE2 TE3 TE4 H&S
Hugh Mcmahon
MM 15 1347 MCERTS Level 2
Sep-20
Feb-22 May-22
Jul-22 Feb-22
Sep-20 Shane Thompstone
MM 16 1395 MCERTS Level 1
Oct-21
-
- -
- Oct-21
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LEK 10916 / Q4 / Version 1 21st November - 24th November
IPPC Licence: P0027-04 Page 14 of 35
APPENDIX 2 - Summaries, Calculations, Raw Data and Charts
TOTAL PARTICULATE MATTER SUMMARY Parameter Sampling Times Concentration
mg/m³ Uncertainty
mg/m³ Limit
mg/m³ Emission Rate g/hr
Run 1 10:04 - 11:04
21 November 2017
20.2 0.66
20 6615
Blank - 0.19 - - - Reference conditions are 273K, 101.3kPa without correction for water vapour
Acetone Blank Value
mg/l Acceptable Value
mg/l 2.0 10
FILTER INFORMATION
SAMPLES
Test
Filter & Probe Rinse Number
Filter Start
Weight
g
Filter End
Weight
g
Mass Gained
on Filter
g
Probe Rinse Start Weight
g
Probe Rinse End Weight
g
Mass Gained on
Probe
g
Combined Total
Mass Gained
g Run 1 AC 8639 0.09715 0.11282 0.01567 148.82720 148.83460 0.00740 0.02307 If total mass gained is less than the LOD then the LOD is reported
BLANKS
Test
Filter & Probe
Number
Filter Start Weight
g
Filter End
Weight
g
Mass Gained
Filter
g
Probe Start
Weight
g
Probe End
Weight
g
Mass Gained
Probe
g
Combined Total
Mass Gained
g Run 1 AC 8622 0.10073 0.10077 0.00004 188.91910 188.91850 -0.00060 0.00021 If total mass gained is less than the LOD then the LOD is reported
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APPENDIX 2 - Summaries, Calculations, Raw Data and Charts
ISOKINETIC SAMPLING EQUATIONS - RUN 1 TPM
Absolute pressure of stack gas, Ps
Barometric pressure, Pb mm Hg Stack static pressure, Pstatic mm H2O Ps = Pb + (Pstatic) mm Hg
13.6
778.51 61.59 783.04
Molecular weight of dry gas, Md
CO2 % O2 % Total % N2 (100 -Total) % Md = 0.44(%CO2)+0.32(%O2)+0.28(%N2)
1.76
17.63 19.39 80.61 28.99 Vol. of water vapour collected, Vwstd
Moisture trap weight increase,Vlc g Vwstd = (0.001246)(Vlc) m3
100.7
0.1254722 Molecular weight of wet gas, Ms
Ms = Md(1 - Bwo) + 18(Bwo) g/gmol
27.72 Volume of gas metered dry, Vmstd
Volume of gas sample through gas meter, Vm
Gas meter correction factor, Yd
Mean dry gas meter temperature, Tm
Mean pressure drop across orifice, DH mmH2O
Vmstd = (0.3592)(Vm)(Pb+(DH/13.6))(Yd) Tm + 273
1.061 0.937 16.750 21.753 0.961
Actual flow of stack gas, Qa
Area of stack, As m2
Qa = (60)(As)(Vs) m³/min
4.16
6163.1 Total flow of stack gas, Q Conversion factor (K/mm.Hg) Qstd = (Qa)Ps(0.3592)(1-Bwo) Dry
(Ts) +273 QstdO2 = (Qa)Ps(0.3592)(1-Bwo)(O2REF) @O2ref
(Ts) +273 Qstw = (Qa)Ps(0.3592) Wet
(Ts) +273
0.3592 4591.7
No O2 Ref
5191.30
Volume of gas metered wet, Vmstw
Vmstw = Vmstd + Vwstd m3
1.0862 Vol. of gas metered at O Ref. Cond., V 2 mstd@X%O2
Is the process burning hazardous waste? (If yes, no favourable oxygen correction)
% oxygen measured in gas stream, act%O2
% oxygen reference condition O2 Reference O2 Ref = 21.0 - act%O2
Factor 21.0 - ref%O2
Vmstd@X%oxygen = (Vmstd) (O2 Ref) m3
No
17.6 21
No O2 Ref
No O2 Ref
Percent isokinetic, %I Nozzle diameter, Dn mm
Nozzle area, An mm2
Total sampling time, q min %I = (4.6398E6)(Ts+273)(Vmstd) %
(Ps)(Vs)(An)(q)(1-Bwo) Acceptable isokinetic range 95% to 115%
4.01
12.61 60
114.9
Yes
Moisture content, Bwo
Bwo = Vwstd
Vmstd + Vwstd %
0.1155 11.55
Particulate Concentration, C Mass collected on filter, Mf g Mass collected in probe, Mp g Total mass collected, Mn g Cwet = Mn mg/m³
Vmstw
Cdry = Mn mg/m³ Vmstd
Cdry@X%O2 = Mn mg/m³ Vmstd@X%oxygen
0.01567 0.00740 0.02307
20.238
23.012
No O2 Ref
Moisture by FTIR % - Velocity of stack gas, Vs
Pitot tube velocity constant, Kp
Velocity pressure coefficient, Cp
Mean of velocity heads, DPavg mm H2O Mean square root of velocity heads, ÖDP Mean stack gas temperature, Ts
oC Vs = (Kp)(Cp)(ÖDP)(Ö(Ts + 273)) m/s
(Ms)(Ps)
34.97 0.88
41.75 6.46 61
24.72 Particulate Emission Rates, E
E = [(Cwet)(Qstw)(60)] / 1000
6615.28
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WEIGHING BALANCE UNCERTAINTY
Run
Result
mg/m³
5% ELV
mg/m³
LOD < 5% ELV
Run 1 0.19 1.0 Yes
APPENDIX 2 - Summaries, Calculations, Raw Data and Charts
TOTAL PARTICULATE MATTER QUALITY ASSURANCE CHECKLIST
LEAK RATE
Run Mean Sampling
Rate
litre/min
Pre-sampling Leak Rate litre/min
Post-sampling Leak Rate
litre/min
Maximum Vacuum mm Hg
Acceptable Leak Rate litre/min
Leak Tests Acceptable?
Run 1 16.56 0.02 0.01 -558.8 0.33 Yes
ISOKINETICITY
Run Isokinetic Variation
%
Acceptable Isokineticity
Run 1 114.91 Yes Acceptable isokinetic range 95% to 115% The above is based on both the Filter and rinse uncertainty
BLANK VALUE
Run Overall Blank
Value
mg/m3
Daily Emission Limit Value
mg/m3
Acceptable Blank Value
mg/m3
Overall Blank Acceptable
mg/m3
Blank 1 0.19
20 2.0
Yes
FILTERS Run Filter Material Filter Size
mm
Max Filtration Temperature
°C
Pre-use Filter Conditioning Temperature
°C
Post-use Filter Conditioning Temperature
°C Run 1 Glass Fibre 47 160 180 160
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APPENDIX 2 - Summaries, Calculations, Raw Data and Charts
ISOCYANATES SUMMARY Test Sampling Times Concentration
mg/m³ LOD
mg/m³ Limit
mg/m³ Emission Rate g/hr
Run 1 12:18 - 13:18
21 November 2017
0.002 0.0002
0.06 0.6
Field Blank - 0.0024 - - - Reference conditions are 273K, 101.3kPa without correction for water vapour
INDIVIDUAL ISOCYANATES SUMMARY Test Lab Result
ug Concentration
mg/m³ LOD
mg/m³ Emission Rate g/hr
Run 1
HDI MDI TDI
0.07 0.0001 0.0001 0.022 0.15 0.0002 0.0001 0.047 1.68 0.0019 0.0001 0.529
Blank 1
HDI MDI TDI
0.07 0.0001 0.0001 0.022 0.07 0.0001 0.0001 0.022 1.91 0.0022 0.0001 0.602
Reference conditions are 273K, 101.3kPa without correction for water vapour
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APPENDIX 2 - Summaries, Calculations, Raw Data and Charts
ISOKINETIC SAMPLING EQUATIONS 1 ISOCYANATES
Absolute pressure of stack gas, Ps
Barometric pressure, Pb mm Hg Stack static pressure, Pstatic mm H2O Ps = Pb + (Pstatic) mm Hg
13.6
779 62 783
Velocity of stack gas, Vs
Pitot tube velocity constant, Kp
Velocity pressure coefficient, Cp
Mean of velocity heads, DPavg mm H2O Mean square root of velocity heads, ÖDP Mean stack gas temperature, Ts
oC
Vs = (Kp)(Cp)(ÖDP)(Ö(Ts + 273)) m/s
(Ms)(Ps)
34.97 0.848 35.00 5.92 62
21.8
Vol. of water vapour collected, Vwstd
Moisture trap weight increase,Vlc g Vwstd = (0.001246)(Vlc) m3
-
-
Volume of gas metered dry, Vmstd
Volume of gas sample through gas meter, Vm
Gas meter correction factor, Yd
Mean dry gas meter temperature, Tm
Mean pressure drop across orifice, DH m
Vmstd = (0.3592)(Vm)(Pb+(DH/13.6))(Yd) Tm + 273
0.8963 0.8910 18.17
m 18.49 0.768
Actual flow of stack gas, Qa
Area of stack, As
Qa = (60)(As)(Vs)
4.16 5434
Dry total flow of stack gas, Qstd
Conversion factor (K/mm.Hg)
Qstd = (Qa)Ps(0.3592)(1-Bwo) (Ts) +273
0.3592 4036
Volume of gas metered wet, Vmstw
Vmstw = Vmstd + Vwstd m3
0.8687 Wet total flow of stack gas, Qstw
Qstw = (Q a)P s(0.3592) (Ts) +273
4563
Vol. of gas metered at O Ref. Cond., V 2 mstd@X%O2 Is the process burning hazardous waste? (If yes, no favourable oxygen correction) % oxygen measured in gas stream, act%O2
% oxygen reference condition O2 Reference O2 Ref = 21.0 - act%O2 Factor 21.0 - ref%O2 Vmstd@X%oxygen = (Vmstd) (O2 Ref) m3
No
17.6 21
No O2 Ref
No O2 Ref
Dry total flow of stack gas at X% O2, QstdO2
QstdO2 = (Qa)Ps(0.3592)(1-Bwo)(O2REF)
(Ts) +273
No O2 Ref
Percent isokinetic, %I Nozzle diameter, Dn mm Nozzle area, An mm2
Total sampling time, q min %I = (4.6398E6)(Ts+273)(Vmstd) %
(Ps)(Vs)(An)(q)(1-Bwo) Acceptable isokinetic range 95% to 115%
4.07
12.98 60 102
Yes
Moisture content, Bwo
Bwo = Vwstd
Vmstd + Vwstd %
0.1155 11.55
Moisture by FTIR % - Isocyanates Concentration, C Mass of isocyanates collected , ug Cwet = Mn mg/m³
Vmstw
Cdry = Mn mg/m³ Vmstd
Cdry@X%O2 = Mn mg/m³ Vmstd@X%oxygen
2
0.002
0.002
No O2 Ref
Molecular weight of dry gas, Md
CO2 % O2 % Total % N2 (100 -Total) %
Md = 0.44(%CO2)+0.32(%O2)+0.28(%N2)
1.76
17.63 19.39 80.61
28.99
Molecular weight of wet gas, Ms
Ms = Md(1 - Bwo) + 18(Bwo) g/gmol
27.7 Isocayanates Emission Rates, E E = [(Cwet)(Qstw)(60)] / 1000 g/hr
0.60
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APPENDIX 2 - Summaries, Calculations, Raw Data and Charts
ISOCYANATES QUALITY ASSURANCE CHECKLIST
Leak Test Results Mean Sampling Rate
litre/min
Pre-sampling Leak Rate
litre/min
Post-sampling Leak Rate
litre/min
Maximum Vacuum
mm Hg
Acceptable Leak Rate
litre/min
Leak Tests Acceptable
Run 1 13.3 0.01 0.01 -457.2 0.27 Yes
Isokinetic Criterion Compliance Isokinetic Variation %
Acceptable Isokineticity
Run 1 101.6 Yes
Filtration Filter Material Filter Size
mm
Maximum Filtration
Temperature °C
Filters Coated with
Run 1 Quartz Fibre 47 160 1-(2-pyridyl)piperazine
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Chiller Temperature (°C) 2.5 Requirement < 4°C Compliant Yes
Chiller Temperature (°C) 2.5 Requirement < 4°C Compliant Yes
APPENDIX 2 - Summaries, Calculations, Raw Data and Charts
COMBUSTION GASES SUMMARY
Test Sampling Time and Date Concentration
mg/m³ LOD
mg/m³ Limit
mg/m³ Emission Rate g/hr
NOx 10:55 - 11:55
21 November 2017
92.28 0.45
110 21658
CO 10:55 - 11:55
21 November 2017
46.12 0.24
600 10825
Test Sampling Time and Date Concentration
% LOD
% O2 10:55 - 11:55
21 November 2017
18.58 0.01
Reference conditions are 273K, 101.3kPa without correction for water vapour
PRE-SAMPLING CALIBRATION DATA
Date 21 November 2017 Start Time 10:10 End Time 10:20
Gas Range (ppm / %)
Zero Reading at analyser
Span Reading at analyser
Zero Check at analyser
Zero Check down line
Span Check down line
Response Time (Secs)
Leak Rate %
NO 250 0.00 201.5 0.10 0.40 201.0 43 0.25 CO 200 0.00 82.4 0.00 2.00 81.0 40 1.70 O2 25 0.10 21.00 0.00 0.10 20.93 16 0.33
POST-SAMPLING CALIBRATION DATA
Date 21 November 2017 Start Time 13:10 End Time 13:20
Gas Zero Check
down line Span Check down line
Zero Drift (%)
Span Drift (%)
NO
2.10 200.9
0.68 -0.72
CO
4.00 79.4
1.00 -1.80
O2
0.10
21.00 0.00
0.28
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11:55 11:53 11:51 11:49 11:47 11:45 11:43 11:41 11:39 11:37 11:35 11:33 11:31 11:29 11:27 11:25 11:23 11:21 11:19 11:17 11:15 11:13 11:11 11:09 11:07 11:05 11:03 11:01 10:59 10:57 10
55
11:55
11:53
11:51
11:49
11:47
11:45
11:43
11:41
11:39
11:37
11:35
11:33
11:31
11:29
11:27
11:25
11:23
11:21
11:19
11:17
11:15
11:13
11:11
11:09
11:07
11:05
11:03
11:01
10:59
10:57
1055
Conc
entr
atio
n m
g/m
³ Co
ncen
trat
ion
mg/
m³
120.0
APPENDIX 2 - Summaries, Calculations, Raw Data and Charts
OXIDES OF NITROGEN (as NO2) EMISSIONS CHART
Oxides of Nitrogen NOx
Limit
100.0
80.0
60.0
40.0
20.0
0.0
700.0
Time
CARBON MONOXIDE EMISSIONS CHART
Carbon Monoxide CO
Limit 600.0
500.0
400.0
300.0
200.0
100.0
0.0
Time
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11:55 11:53 11:51 11:49 11:47 11:45 11:43 11:41 11:39 11:37 11:35 11:33 11:31 11:29 11:27 11:25 11:23 11:21 11:19 11:17 11:15 11:13 11:11 11:09 11:07 11:05 11:03 11:01 10:59 10:57 10
55
Conc
entr
atio
n %
v/v
OXYGEN EMISSIONS CHART
25.0
O2
20.0 O2
15.0
10.0
5.0
0.0
Time
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APPENDIX 2 - Summaries, Calculations, Raw Data and Charts
MOISTURE CALCULATIONS
Moisture Determination - Isokinetic Test Number
Sampling Time and Date
Start Weight
kg
End Weight
kg
Total gain
kg
Concentration
%
LOD
%
Uncertainty
%
Run 1 10:04 - 11:04
21 November 2017
3.2145 3.3152
0.1007 11.6
0.0 2.5
Moisture Quality Assurance
Test Number Sampling
Duration
mins
Total Volume Sampled
l
Sampling Rate
l/min
Start Leak Rate
l/min
End Leak Rate
l/min
Acceptable Leak Rate
l/min
Leak Tests Acceptable?
Run 1 60 1086 16.6 0.02 0.01 0.331 Yes
PRELIMINARY STACK SURVEY
Stack Characteristics Stack Diameter / Depth, D 2.30 m Stack Width, W - m Stack Area, A 4.16 m2 Average stack gas temperature 62 oC Stack static pressure 0.6 kPa Barometric Pressure 99.5 kPa
Stack Gas Composition & Molecular Weights Component Molar
Mass M
Density kg/m3
p
Conc Dry
% Vol
Dry Volume Fraction
r
Dry Conc kg/m3
pi
Conc Wet
% Vol
Wet Volume Fraction
r
Wet Conc kg/m3
pi CO2 44 1.963059 1.760000 0.017600 0.034550 1.556702 0.015567 0.030559 O2 32 1.427679 18.581585 0.185816 0.265285 16.435219 0.164352 0.234642 N2 28 1.249219 79.658415 0.796584 0.995108 70.457043 0.704570 0.880163
H2O 18 0.803070 - - - 11.551036 0.115510 0.092763 Where: p = M / 22.41 pi = r x p
Calculation of Stack Gas Densities Determinand Result Units Dry Density (STP), P STD 1.2949 kg/m3 Wet Density (STP), P STW 1.2381 kg/m3 Dry Density (Actual), P Actual 1.0428 kg/m3 Average Wet Density (Actual), P ActualW 0.997 kg/m3 Where:
3 P STD = sum of component concentrations, kg/m (not including water vapour) P Actual = P STD x (Ts / Ps) x (Pa / Ta)
P STW = (P STD + pi of H2O) / (1 + (pi of H2O / 0.8036)) P ActualW = P STW x (Ts / Ps) x (Pa / Ta)
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APPENDIX 2 - Summaries, Calculations, Raw Data and Charts
PRELIMINARY STACK SURVEY
TRAVERSE 1
Date of Survey 21 November 2017 Time of Survey 09:55 Velocity Measurement Device: S-Type Pitot
Sampling Line A
Traverse
Point Distance
into
duct (m)
DP pt
mmH2O
(average of 3 readings)
DP pt
Pa
(average of 3 readings)
Temp
oC Velocity
m/s Volumetric Flow Rate (actual)
m³/s
O2
%
Vol
Angle
of Swirl
o 1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
0.05 0.10 0.15 0.20 0.26 0.31 0.36 0.41 0.46 0.51 0.56 0.61 0.66 0.71 0.77 0.82 0.87 0.92 0.97 1.02 1.07 1.12 1.17 1.22 1.28 1.33 1.38 1.43 1.48 1.53 1.58 1.63 1.68 1.73 1.79 1.84 1.89 1.94 1.99 2.04 2.09 2.14 2.19 2.24 2.30
54.0 61.0 52.0 48.0 63.0 69.0 74.0 32.0 10.0 8.0 4.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
18.5 36.0 42.0 51.0 53.0 61.0 65.0 72.0 76.0 68.0 69.0 64.0 62.0 58.0 63.0 71.0 82.0 80.0 73.0 77.0 82.0 71.0
529 598 510 470 617 676 725 314 98 78 39 1 1 1 1 1 1 1 1 1 1 1 1
181 353 412 500 519 598 637 706 745 666 676 627 608 568 617 696 804 784 715 755 804 696
62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62
28.1 29.9 27.6 26.5 30.4 31.8 32.9 21.6 12.1 10.8 7.7 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2
16.5 23.0 24.8 27.3 27.8 29.9 30.8 32.5 33.3 31.5 31.8 30.6 30.1 29.1 30.4 32.2 34.6 34.2 32.7 33.6 34.6 32.2
116.8 124.1 114.6 110.1 126.2 132.0 136.7 89.9 50.3 45.0 31.8 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0
68.4 95.4 103.0 113.5 115.7 124.1 128.1 134.9 138.6 131.1 132.0 127.2 125.2 121.0 126.2 133.9 143.9 142.2 135.8 139.5 143.9 133.9
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM
Mean - 41.6 407 62 20.8 86.6 - -
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Sampling Line B Traverse
Point
Distance
into
duct (m)
DP pt
mmH2O
(average of 3 readings)
DP pt
Pa
(average of 3 readings)
Temp
oC Velocity
m/s Volumetric Flow Rate (actual)
m³/s
O2
%
Vol
Angle
of Swirl
o 1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
0.05 0.10 0.15 0.20 0.26 0.31 0.36 0.41 0.46 0.51 0.56 0.61 0.66 0.71 0.77 0.82 0.87 0.92 0.97 1.02 1.07 1.12 1.17 1.22 1.28 1.33 1.38 1.43 1.48 1.53 1.58 1.63 1.68 1.73 1.79 1.84 1.89 1.94 1.99 2.04 2.09 2.14 2.19 2.24 2.30
47.0 52.0 38.0 56.0 62.0 50.0 56.0 48.0 10.0 18.0 12.0 22.0 16.0 18.0 14.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
10.0 2.0 9.0
14.0 34.0 52.0 64.0 58.0 71.0 84.0 73.0 84.0 86.0 70.0 75.0 64.0 61.0 57.0
461 510 372 549 608 490 549 470 98
176 118 216 157 176 137
1 1 1 1 1 1 1 1 1 1 1 1 98 20 88
137 333 510 627 568 696 823 715 823 843 686 735 627 598 559
62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62
26.2 27.6 23.6 28.6 30.1 27.0 28.6 26.5 12.1 16.2 13.3 17.9 15.3 16.2 14.3 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2
12.1 5.4
11.5 14.3 22.3 27.6 30.6 29.1 32.2 35.1 32.7 35.1 35.5 32.0 33.1 30.6 29.9 28.9
109.0 114.6 98.0 118.9 125.2 112.4 118.9 110.1 50.3 67.4 55.1 74.6 63.6 67.4 59.5 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0
50.3 22.5 47.7 59.5 92.7 114.6 127.2 121.0 133.9 145.7 135.8 145.7 147.4 133.0 137.7 127.2 124.1 120.0
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM
Mean - 33.1 324 62 18.1 75.4 - -
PRELIMINARY STACK SURVEY QUALITY ASSURANCE CHECKLIST
PITOT LEAK CHECK
Run Pre Traverse Leak Rate Post Traverse Leak Rate
Start Value Pa
End Value Pa
Difference %
Outcome Start Value Pa
End Value Pa
Difference %
Outcome
Run 1 90 90 0.0 Pass 103 102 1.0 Pass To complete a compliant pitot leak check a pressure of over 80 mmH O (or 800 Pa) is applied and the pressure drop monitored over 5 mins. A drop of less than 5% must be observed.
S-Type Pitot Stagnation Check
Run
Stagnation
(Pa)
Reference (Pa)
Difference
(Pa) Outcome
(Permitted +/- 10 Pa)
Run 1 102 Page 1205 1of 35 1.0 Pass
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APPENDIX 2 - Summaries, Calculations, Raw Data and Charts
PRELIMINARY STACK SURVEY (CONTINUED)
Sampling Plane Validation Criteria EA Technical Guidance Note (Monitoring) M1 Result Units Requirement Compliant Lowest Differential Pressure 1 Pa >= 5 Pa No Lowest Gas Velocity 1.2 m/s - - Highest Gas Velocity 35.5 m/s - - Ratio of Gas Velocities 29.3 - < 3 : 1 No Maximum angle of flow with regard to duct axis NM o < 15o - No local negative flow Yes - - Yes
Calculation of Stack Gas Velocity, V Velocity at Traverse Point, V = Kpt x (1-e) * Ö(2 * DP pt / P ActualW)
Where: Kpt = Pitot tube calibration coefficient
(1-e) = Compressibility correction factor, assumed at a constant 0.998
Average Stack Gas Velocity, Va 19.5 m/s
Calculation of Stack Gas Volumetric Flowrate, Q Duct gas flow conditions Actual Reference Units Temperature 62 0 oC Total Pressure 100.1 101.3 kPa Oxygen 17.6 21 % Moisture 11.55 11.55 % Pitot tube calibration coefficient, Kpt 0.88
Gas Volumetric Flowrate Result Units Average Stack Gas Velocity (Va) 19.48 m/s Stack Area (A) 4.16 m2 Gas Volumetric Flowrate (Actual), QActual 291455 m3/hr Gas Volumetric Flowrate (STP, Wet), QSTP 234700 m3/hr Gas Volumetric Flowrate (STP, Dry), QSTP,Dry 207590 m3/hr Gas Volumetric Flowrate (REF), QRef 234700 m3/hr
Where: QActual = Va x A x 3600 QSTP = Q (Actual) x (Ts / Ta) x (Pa / Ps) x 3600 QSTP,Dry = Q (STP) / (100 - (100 / Ma)) x 3600
QRef = Q (STP) x ((100 - Ma) / (100 - Ms)) x ((20.9 - O2a) / (20.9 - O2s))
Nomenclature: Ts = Absolute Temperature, Standard Conditions, 273 K Ps = Absolute Pressure, Standard Conditions, 101.3 kPa Ta = Absolute Temperature, Actual Conditions, K Pa = Absolute Pressure, Actual Conditions, kPa Ma = Water vapour, Actual Conditions, % Vol Ms = Water vapour, Reference Conditions, % Vol O2a = Oxygen, Actual Conditions, % Vol O2s = Oxygen, Reference Conditions, % Vol
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Non-Isokinetic/Gases Sampling Sampling
Point Distance
(% of Depth) Distance into
Stack Units
A 33 0.76 m
Isokinetic Sampling Sampling
Point Distance
(% of Depth) Distance into
Stack (m) Swirl
o 1 2 3 4
5
6
7
8 9
10
11
12
13
14
15 16
17 18 19 20
2.6 8.2
14.6 22.6
34.2
65.8
77.4
85.4 91.8 97.4
2.6
8.2
14.6
22.6
34.2 65.8
77.4 85.4 91.8 97.4
0.06 0.19 0.34 0.52
0.79
1.51
1.78
1.96 2.11 2.24
0.06
0.19
0.34
0.52
0.79 1.51
1.78 1.96 2.11 2.24
- - - -
-
-
-
- - -
-
-
-
-
- -
- - - -
APPENDIX 2 - Summaries, Calculations, Raw Data and Charts
STACK DIAGRAM
Value Units Stack Depth
Stack Width Area
2.30
- 4.16
m m
m2
10 9
8
7
20 18 16 14 12 6
19 17 5 15 13 11
4
3 2
1
Isokinetic sampling point Isokinetic sampling points not used Non Isokinetic/Gases sampling point
SAMPLING LOCATION
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APPENDIX 3 - Measurement Uncertainty Budget Calculations
MEASUREMENT UNCERTAINTY BUDGET - TOTAL PARTICULATE MATTER
Run Sampled Volume
m³
Sampled Gas Temp
K
Sampled Gas Pressure
kPa
Sampled Gas Humidity
% by volume
Oxygen Content
% by volume
Limit of Detection
% by mass
Leak
%
Uncollected Mass
mg
MU required < 2% < 2% < 1% < 1% < 10% < 5% of ELV < 2% < 10% of ELV Run 1 as a %
0.001 0.10
2.0 0.60
0.50 0.48
1.0 1.0
N/A N/A
0.2100 0.96664
- 0.06
- 0.001
compliant? Yes Yes Yes Yes N/A Yes Yes Yes
Run Volume (STP)
m³
Mass of particulate
mg
O2 Correction
-
Leak
mg/m³
Uncollected Mass mg
Combined uncertainty
Run 1 MU as mg/m3
MU as %
0.81 0.27 1.27
23.0700 0.1933 0.9103
1.0 - -
0.007 0.007 0.035
0.0001 0.0001 0.0005
- 0.33
-
R1 - Uncertainty expressed at a 95% confidence level (where k = 2) 0.66 mg/m³ 3.12 % (k is a coverage factor which gives a 95% confidence in the quoted figures) Reference – SOCOTEC UK Technical Procedure AE150 Estimation of Uncertainty of Measurement
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APPENDIX 3 - Measurement Uncertainty Budget Calculations
MEASUREMENT UNCERTAINTY BUDGET - ISOCYANATES
Run Sampled Volume
m³ Sampled Gas
Temp K
Sampled Gas Pressure
kPa Sampled Gas
Humidity % by volume
Oxygen Content
% by volume Leak
%
Uncollected Mass mg
MU required < 2% < 2% < 1% < 1% < 10% < 2% < 10% of ELV Run 1 as a %
0.001 0.12
2 0.69
0.5 0.48
1 1.00
N/A N/A
- 0.08
- 0.12
compliant? Yes Yes Yes Yes N/A Yes Yes
Run Volume (STP)
m³
Mass of Isocyanates
mg
O2 Correction
-
Leak
mg/m³
Uncollected Mass mg
Combined uncertainty
Run 1 MU as mg/m3
MU as %
0.84 0.00 1.31
0.0019 0.0002 0.0008
1.00 - -
0.000 0.000 0.043
0.0000 0.0000 2.13
- 2.50
-
R1 - Uncertainty expressed at a 95% confidence level (where k = 2) 0.000 mg/m³ 17.41 %
(k is a coverage factor which gives a 95% confidence in the quoted figures) Reference – SOCOTEC UK Technical Procedure AE150 Estimation of Uncertainty of Measurement
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APPENDIX 3 - Measurement Uncertainty Budget Calculations
MEASUREMENT UNCERTAINTY BUDGET - MOISTURE
Run Sampled Volume
m³
Sampled Gas Temp
K
Sampled Gas Pressure
kPa
Sampled Gas Humidity
% by volume
Oxygen Content
% by volume
Leak
%
MU required < 2% < 2% < 1% < 1% < 10% < 2% Run 1 as a %
0.001 0.10
2.0 0.60
0.50 0.48
1.0 1.0
N/A N/A
-
0.06 compliant? Yes Yes Yes Yes N/A Yes
Run Volume (STP)
m³
Mass Gained
mg
O2 Correction
-
Leak
mg/m³
Uncollected Mass mg
Combined uncertainty
Run 1 MU as % v/v MU as %
0.81 0.17 1.27
100700 0.01 0.10
1.0 - -
36.55 0.00 0.03
58 0.008 0.06
- 0.17
-
R1 - Uncertainty expressed at a 95% confidence level (where k = 2) 0.34 % v/v 2.54 %
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APPENDIX 3 - Measurement Uncertainty Budget Calculations
MEASUREMENT UNCERTAINTY BUDGET - OXIDES OF NITROGEN
Limit value 110 mg/m3 Concentration @ Ref conditions 92.3 mg/m3 Cal gas conc 410 mg/m3 Analyser Full Scale 513 mg/m3
Value Units specification MU Met? Response time Logger sampling interval Measurement period Number of readings in measurement Repeatability at zero Repeatability at span level Deviation from linearity Zero drift Span drift volume or pressure flow dependence atmospheric pressure dependence ambient temperature dependence zero / span Combined interference dependence on voltage Influence of Vibration losses in the line (leak)
43 60 60 60
0.11 0.1
-0.40 0.68 -0.72 0.25 0.25 0.25 3.00 0.42 N/A 0.42
seconds seconds minutes
- % full scale % full scale % of value % full scale % full scale
% of full scale/3 kPa % of full scale/2 kPa
% full scale/10K % range
% full scale/10V % of upper limit of Cal range
% of value
180 - - -
<1 % range <2 % range <2 % range
<2% range / 24hr <2% range/24hr
<2 % / 3 kPa <3% / 2 kPa
<3% range / 10 K <4% of Range
< 0.1%vol /10 volt <2%
< 2% of value
Yes - - -
Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
- Yes
Performance characteristic Uncertainty Value of uncertainty quantity repeatability lack of fit short term zero drift short term span drift influence of Ambient Temp at Zero influence of Ambient Temp at Span influence of sample gas pressure influence of sample gas flow influence of supply voltage Combined Interfence
Uncertainty of Cal gas
U r = S r U lof U d,z U d,s U t,z U t,s U p
U fit U v
U i U adj
0.004 -0.231 0.393 -0.416 0.050 0.900 0.000 0.173 0.000 0.004 2.000
Measurement uncertainty (Concentration Measured) Combined uncertainty Expanded at a 95% confidence interval
Expanded uncertainty expressed with a level of confidence of 95%
Expanded uncertainty expressed with a level of confidence of 95%
Expanded uncertainty expressed with a level of confidence of 95% Developed for the STA by R Robinson, NPL
92.28 mg/m3
2.29 mg/m3
4.57 mg/m3
4.2 % ELV
4.6 mg/m3
5.0 % value
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APPENDIX 3 - Measurement Uncertainty Budget Calculations
MEASUREMENT UNCERTAINTY BUDGET - CARBON MONOXIDE
Limit value 600 mg/m3 Concentration @ Ref conditions 46.1 mg/m3 Cal gas conc 100.0 mg/m3 Analyser Full Scale 250 mg/m3
Performance characteristics Value Units specification MU Met? Response time Logger sampling interval Measurement period Number of readings in measurement Repeatability at zero Repeatability at span level Deviation from linearity Zero drift Span drift volume or pressure flow dependence atmospheric pressure dependence ambient temperature dependence zero / span Combined interference dependence on voltage Influence of Vibration losses in the line (leak) Uncertainty of calibration gas
40 60 60 60 0.1 0.2
0.61 1.00 -1.80 0.2
0.44 1
0.03 -0.70 N/A 0.02 1.00
seconds seconds minutes
- % full scale % full scale % of value % full scale % full scale
% of full scale/3 kPa % of full scale/2 kPa
0.36 % of Range
% full scale/10V % of upper limit of Cal range
% of value % of value
180 - - -
<1 % range <2 % range <2 % range
<2% range / 24hr <2% range/24hr
<2 % / 3 kPa <3% / 2 kPa
<3% range / 10 K <4% of Range
< 0.1%vol /10 volt <2%
< 2% of value < 2% of value
Yes - - -
Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes N/A Yes Yes
N/A - Horiba's are not effected by Vibration
Performance characteristic Uncertainty Value of uncertainty quantity repeatability lack of fit short term zero drift short term span drift influence of Ambient Temp zero influence of Ambient Temp span influence of sample gas pressure influence of sample gas flow influence of supply voltage Combined Interfence Uncertainty of Cal gas
U r = S r U lof
U d,z
U d,s
U t,z
U t,s
U p
U fit U v
U i U adj
0.003 0.12 0.35 0.58 0.42 0.07 -2.31 0.14 0.00 1.34 0.40
Measurement uncertainty (Concentration Measured) 52.1 mg/m3 Combined uncertainty 2.8 mg/m3 Expanded uncertainty 5.6 mg/m3
Expanded uncertainty expressed with a level of confidence of 95% 0.9 % ELV Expanded uncertainty expressed with a level of confidence of 95% 5.6 mg/m3 Expanded uncertainty expressed with a level of confidence of 95% 10.8 % value Developed for the STA by R Robinson, NPL Reference – SOCOTEC UK Technical Procedure AE150 Estimation of Uncertainty of Measurement
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Reference N/A Reported Concentration 18.58 Calibration gas 20.95 Analyser Full Scale 25
APPENDIX 3 - Measurement Uncertainty Budget Calculations
MEASUREMENT UNCERTAINTY BUDGET - OXYGEN
%vol %vol %vol %vol
Value Units specification MU Met? Response time Logger sampling interval Measurement period Number of readings in measurement Repeatability at zero Repeatability at span level Deviation from linearity Zero drift Span drift volume or pressure flow dependence atmospheric pressure dependence ambient temperature dependence Combined interference dependence on voltage losses in the line (leak) Uncertainty of calibration gas
16 60 60 60
0.25 0.15 0.13 0.00 0.28 0.03 0.05 -0.08 0.14 0.01 0.14 0.1
seconds seconds minutes
- % full scale % full scale % of value % full scale % full scale
% of full scale/3 kPa % of full scale/2 kPa
4.5 % range
% full scale/10V % of value % of value
180 - - -
<1 % range <2 % range <2 % range
<2% range / 24hr <2% range/24hr
<2 % / 3 kPa <3% / 2 kPa
<3% range / 10 K <4% of Range
< 0.1%vol /10 volt < 2% of value < 2% of value
Yes - - -
Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Performance characteristic Uncertainty Value of uncertainty quantity repeatability lack of fit short term zero drift short term span drift influence of Ambient Temp at Zero influence of Ambient Temp at Span influence of sample gas pressure influence of sample gas flow influence of supply voltage Combined Interfence Uncertainty of Cal gas
U r = S r U lof
U d,z
U d,s
U t,z
U t,s
U p
U fit U v
U i U adj
0.0083 0.0751 0.0000 0.1617 0.0000 -0.0630 0.0000 0.0173 0.0006 0.0485 0.1048
Measurement uncertainty (Concentration Measured) Combined uncertainty Expanded uncertainty
18.58 0.22 0.44
% % %
Expanded uncertainty expressed with a level of confidence of 95% 0.4 % Expanded uncertainty expressed with a level of confidence of 95% 0.08 % vol Developed for the STA by R Robinson, NPL
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Measured Velocity at Actual Conditions 19.5 Measured Volumetric Flow rate at Actual Conditions 291455
APPENDIX 3 - Measurement Uncertainty Budget Calculations
MEASUREMENT UNCERTAINTY BUDGET - VELOCITY & VOLUMETRIC FLOW RATE
m/s
m³/hr
Performance Characteristics & Source of Value Units Values Requirement Compliant Uncertainty of Local Gas Velocity Determination
Uncertainty of pitot tube coefficient
Uncertainty of mean local dynamic pressures
Factor loading, function of the number of measurements.
Range of measurment device
Resolution Calibration uncertainty Drift
Linearity
Uncertainty of gas density determination
Uncertainty of molar mass determination
Uncertainty of temperature measurement
Uncertainty of absolute pressure in the duct
Uncertainty associated with the estimate of density
Uncertainty associated with the measurement of local velocity
Uncertainty associated with the measurement of mean velocity
-
-
3 readings
pa
pa
pa
% range
% range
kg/mol
K
pa
-
-
-
0.010
0.49
0.591
1000
1.00
7.34
0.10
0.06
0.00002
1.71
511
0.008
0.0001
0.0001
minimum 3
<1% of Value or 20 Pa whichever is
greater
<2% of value
<1% of value
Yes
Yes
Yes
Yes
Measurement Uncertainty - Velocity m/s Combined uncertainty
Expanded uncertainty at a 95% Confidence Interval 0.23
0.45 Note - The expanded uncertainty uses a coverage factor of k = 2.
Expanded Measurement Uncertainty of Velocity at a 95% Confidence Interval % Expressed as a % of the Measured Velocity
Expanded uncertainty at a 95% Confidence Interval 1.2
2.3
Measurement Uncertainty Volumetric Flow Rate m³/hr Combined uncertainty Expanded uncertainty at a 95% Confidence Interval
7572 14840
Note - The expanded uncertainty uses a coverage factor of k = 2.
Expanded Measurement Uncertainty of Volumetric Flow Rate at a 95% Confidence Interval % Expressed as a % of the Measured Volumetric Flow Rate Expanded uncertainty at a 95% Confidence Interval
2.6 5.1
Reference – SOCOTEC UK Technical Procedure AE150 Estimation of Uncertainty of Measurement
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END OF REPORT
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