Hydrocarbon Composition of Gasoline
Vapor Emissions from Enclosed Fuel Tanks
Draft
United States
Environmental Protection
Agency
-------
Hydrocarbon Composition of Gasoline
Vapor Emissions from Enclosed Fuel Tanks
Draft
Assessment and Standards Division
Office of Transportation and Air Quality
and
Human Exposure & Atmospheric Sciences Division
Office of Research and Development
U.S. Environmental Protection Agency
NOTICE
This technical report does not necessarily represent final EPA decisions or
positions. It is intended to present technical analysis of issues using data
that are currently available. The purpose in the release of such reports is to
facilitate the exchange of technical information and to inform the public of
technical developments.
SER&
United States
Environmental Protection
Agency
EPA-420-D-10-001
January 2010
-------
Introduction
The purpose of this report is for EPA OTAQ (Office of Transportation and Air Quality) to give
an initial summary of EPA ORD (Office of Research and Development) work on the
composition of hydrocarbon emissions from gasoline, specifically the head space components
above gasoline in an enclosed fuel tank. EPA ORD will formally publish this work in a
scientific journal but, until that is done, this report will provide details on that work since it is
related to EPA regulatory packages such as air quality modeling done for the Renewable Fuel
Standards and Light-Duty Vehicle Greenhouse Gas Standards.
Overview and Prior Work
Headspace vapors are those hydrocarbon compounds in gaseous form above a gasoline sample in
an enclosed space such as a fuel tank, frequently a fuel storage tank used in the distribution for
gasoline. Some of these vapors are emitted to the atmosphere in transport, storage, and
utilization of gasoline. The numerous hydrocarbon compounds (about 120 individual
hydrocarbons) represent the more volatile and lower molecular weight components of the
gasoline. In recent years and even more so in the future, ethanol, as a renewable fuel component,
is blended with gasoline generally at the 10% level, which results in 90% gasoline with 10%
ethanol. This fuel mixture of 90% gasoline and 10% ethanol (in denatured form) will be referred
to as E10 while 100% gasoline with no ethanol added will be referred to as EO. Also, blends of
85% ethanol and 15% gasoline (E85) can be used in specially designed flexible-fueled vehicles
but new headspace profiles with E85 have not yet been obtained in this project for E85.
There are, thus, the following three fuel blends of interest
100% gasoline EO
90% gasoline with 10% ethanol El0
85% ethanol with 15% gasoline E85
Originally, two profiles for headspace vapors for EO and E10 were selected from the SPECIATE
data base located at
http://www.epa.gov/ttn/chief/software/speciate/index.html
These profiles were profile number 8737 and 8736 for EO and E10 respectively. The profiles
showed the following aromatic and olefin content for the headspace vapors.
Aromatics Olefins
EO blend 4% 13%
El0 blend 2% 4%
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Since the use of ethanol, which has high octane properties, in gasoline would replace other high
octane components such as aromatics, it is reasonable to expect that the aromatic content of the
headspace would decrease as these profiles show. It is not reasonable to expect that use of E10
would so markedly decrease olefm content. Gasoline composition varies widely in-use. The
purpose of the air quality modeling using these profiles is to determine the air quality effects of
adding ethanol to gasoline in an effort to have the EO and E10 samples reflect what happens
when ethanol is added to gasoline rather than using profiles from samples where the widely
varying composition of in-use gasoline obfuscates the results.
Initially, the two profiles from SPECIATE mentioned above were adjusted so that the olefm
content of the E10 blend represented addition of 10% ethanol to the base gasoline (from splash-
blending). This adjustment was made by decreasing the olefm content of the EO headspace
profiles so that the total olefm content would be about 4% and increasing the other components
including the aromatics to make up for the decreased olefm levels. The resulting profile (named
8737b) is shown in the attached table.
In addition to these calculations, measurements were done on an actual splash-blended E10 blend
obtaining a speciation profile and comparing it to one obtained on the corresponding base
gasoline. Gasoline/ethanol blends now generally utilize the higher octane of ethanol and, thus,
as not splash-blended as occurred more in the past. Additional works should and will be done
with these newer blends compared to a base gasoline. This future work though should be done on
typical (average) EO and E10 blends. Still, for this work, a base gasoline was used designed to
be typical of in-use gasoline.
The base gasoline being used is that from an EPA in-use test program for emissions
characterization. The gasoline/ethanol (E10) sample used for headspace analysis was splash
blended. The base gasoline (EO) was shipped in two canisters from the EPA Office of
Transportation and Quality facility (OTAQ) in Ann Arbor, MI to the EPA Office of Research
and Development (ORD) facility in Research Triangle Park, NC. That facility added 10%
ethanol to a portion of the gasoline to create a 10% ethanol (E10) blend as described below. This
gasoline has relatively low olefm content (about 4%) but more typical aromatic content (about
26%).
Results
The impact on headspace vapors from the addition of 10% ethanol to the base gasoline in this
study was to lower the % paraffins and %olefins, and slightly increase the %aromatics. This is
shown in the spreadsheet where the 86% paraffins, 7.6% olefins, and 5.1% aromatics in the
headspace@25C for the base gasoline compares to 75.6% paraffins, 6.3% olefins, and 5.6%
aromatics in the headspace with the added ethanol. Consequently the addition of 10% ethanol to
the base fuel did decrease the % olefm content from 7.6 to 6.3% of total VOC observed in the
headspace@25C. Note that these are percentages of the total VOC. This project did not
measure how the total VOC emissions changed with addition of ethanol but only the
percent change in the VOC itself. Generally, the addition of ethanol to a base gasoline
increases the Reid Vapor Pressure of the resultant blend and, thus, the total VOC emissions on a
mass basis. Also note that isopentane is a major constituent of the headspace vapors accounting
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for about 40% of the VOC while it accounts for about 10% of the composition of the base
gasoline.
The results showed relatively similar aromatic levels for both EO and E10 which the earlier
profiles also showed. The results also showed relatively similar olefm levels for both fuels
which the earlier profiles did not show.
These new profiles will be added to SPECIATE (as numbers 8762 and 8763).
Some smog chamber runs have been done with these samples and will be reported separately.
Appendix
Sample Preparation
Both canisters (one for EO and one for E10) were placed in a fuel shed maintained at 13 degrees
C for storage. An approximate 1 liter aliquot of EO was removed from one of the stored cans and
placed in a stainless steel canister in the storage shed facility. The canister was removed from
the shed, taken to the laboratory, and placed in a large storage cooler containing ice. After an
approximate 2 hour cooling period a 225 ml sample of the cooled gas was taken using a
graduated cylinder, then placed in a 500ml stainless steel can that contained 25 ml of 200 proof
absolute ethanol. This can was closed, swirled mixed, then placed into the storage cooler that
contained the 1 liter can of gasoline (EO designated as sample 41033). Both cans were stored for
a period of about 90 minutes in the cooler. During this time period, and on 2 other occasions, the
can containing the 90% gasoline 41033 with 10% ethanol (E10) was swirl mixed for an
approximate 15 second period.
Triply distilled water (70 ul) was injected into four recently cleaned and vacuum evacuated six
liter SUMMA canisters to condition the canister surface. This small volume of water vaporizes
to water vapor coating the internal surfaces of the canister with a monolayer of water vapor to
deactivate and condition active surface sites allowing the storage of the hydrocarbons in the
gasoline and gasoline head space at 25 degrees C. Without this deactivation, significant losses of
hydrocarbon compounds from benzene to the higher molecular weight hydrocarbons would be
observed during the sample storage period.
At the end of this process 25 ml aliquots of the EO and E10 fuels were placed into 50 ml
Erlenmeyer flasks then placed into a constant temperature bath containing water and maintained
at 25°C. After a 20 minute equilibration time 100 ul aliquots of the headspace vapors were taken
from each flask and injected into the canisters which were then filled to 40 psig with ultra high
purity helium. The prepared canisters were allowed to equilibrate for a 12 to 15 hour period
before performing both GC/FID and GC/MS analyses. Whole fuel samples were prepared by
injecting 0.02ul aliquots of the cooled liquid into canisters then filled to 40 psig using ultra high
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purity helium. More details of these procedures are published elsewhere. Likewise more detailed
concerning the GC/FID and GC/MS methodology are published elsewhere.1
The results obtained for EO sent to RTF for headspace analysis using GC/FID techniques are
provided in the attached Excel spreadsheet. In the spreadsheet are the results for both the
headspace at 25 degrees C and whole fuel analyses of EO and E10. About 140 compound peaks
are presented from the more than 200 compound peaks observed representing approximately
98% of total VOC concentration. The headspace vapors for both EO and E10 contain 6-7%
olefins and about 5% aromatics. Compound name, VOC type, and RTINDEX2 for each
compound are provided in the first 3 columns to the left. Each sample analysis is identified by
file name just above the identification of the sample. The column giving the quantitative levels
(in ppb) is the observed peak concentration given as parts-per-billion-carbon (ppbC). At the
bottom of the column is the sum of all the listed peaks followed by the sum of all the more than
200 observed peaks. Below these 2 values is the ratio that the sum of listed peaks is of all the
observed peaks. This value is typically 98 to 99%. In the rows below these values are the sum
and % sum of the various compound groups to the total VOC. There are pairs of these columns
for each of the 4 canister sample results. For those 2 canister samples that contained ethanol, the
concentration of ethanol was corrected for the reduced FID response due to the presence of the
oxygen atom using published values. For ethanol, the carbon atom attached to the hydroxyl (OH)
group has about 50% reduced response with the FID compared to other carbon atoms in the
compound. Consequently the correction for the 2 carbons in ethanol is given as 2/1.5 or 1.33.
The next column highlighted is the % that each of the listed compounds is of total VOC, (the
sum of the more than 200 observed peaks).
The next column highlighted is the ratio of the % of total VOC for each compound peak
observed in the headspace@25C sample to that for the similar compounds observed in the whole
gasoline analysis. As expected the more volatile compounds contribute a larger % of total VOC
in the headspace @25C than in the fuel. From the spreadsheet the ratio of 1.6 observed for
ethanol indicates that this substituted hydrocarbon is less volatile than the hydrocarbon
compounds, 3-methyl-l-butene and isopentane, eluting just before and after ethanol on the GC
column.
Electronic copies of the chromatograms for all 4 samples are available if needed.
Precision and Accuracy of Results
1 Harley, R.A., S.A. McKeen, M.O. Rodgers, and W.A. Lonneman, Analysis of motor vehicle
emissions during the Nashville/Middle Tennessee Ozone Study, J. Geophys. Res., 106, 3559-
3567, 2001
2 RTINDEX is a technique used to place the elution order and/or location of various VOCs on the GC column. The
most common approach is to determine the retention times of a mixture of the C2-Ci5 normal paraffins (i.e., ethane
through pentadecane) then place other VOCs by retention time were these compounds elute in reference to the
normal paraffins. For example the retention time of benzene on an EPA GC column with an RTINDEX value of
651.21 is about half way between the retention times of n-hexane with a defined RTINDEX value of 600.00 and n-
heptane with a defined RTINDEX value of 700.00.
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Over the years in past analyses of whole gasoline and gasoline headspace@25C samples,
ORD has measured both precision and accuracy for these analyses. Repeats for instrumental
precision are the more commonly performed with repeatability of 5% or better.
A National Institute of Standards and Technology Standard Reference Material
(NIST/SRM) propane in air standard cylinder is used to determine accuracy. The assumption is
made (as it is in EPA measurements of motor vehicle exhaust) that all hydrocarbons respond in
the flame ionization detector (FID) with a uniform per carbon response. However, ethanol, as
well as any other oxygenated hydrocarbons in gasoline, does not respond in this way. As
discussed earlier, an adjustment was made for the presence of oxygen in the FID response. In
the case of ethanol, the presence of oxygen causes this 2 carbon compound to respond as if has
only 1.5 carbons. Consequently, the observed measurement for ethanol is adjusted using a 2/1.5
or 1.33 correction factor for this compound.
Measurements done by
William Lonneman and Tad Kleindienst
US Environment Protection Agency
Office of Research and Development
National Exposure Research Laboratory
Research Triangle Park, NC 27711
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Gasoline # 41033 Headspace@25C and Whole Gas Analyses
NAME
Propylene
Propane
Isobutane
Butene-1
Isobutylene
1,3-Butadiene
n- Butane
t-Butene-2
2,2-Dimethylpropane
c-Butene-2
3-Methyl-l-Butene
Ethanol
Isopentane
Pentene-1
2-Methyl-l-Butene
n-Pentane
Isoprene
trans-2-Pentene
Unknown
cis-2-Pentene
2-Methyl-2-Butene
2,2-Dimethylbutane
Cyclopentene
3 -Methyl- 1 -pe nte ne
Cyclopentane
2,3-Dimethylbutane
2 -Methylpe ntane
3-Methylpentane
2-Methyl-l-Pentene + Hexene-1
n-Hexane
trans-3-Hexene
trans-2-Hexene
2-Methyl-2-Pentene
cis-3-Hexene
4-M ethyl cyclopentene
cis-2-Hexene
cis-3 -Methyl -2 - pe nte ne
2 ,2 -DiMethy Ipe ntane
Methylcyclo pe ntane
2,4-Dimethylpentane
2,2,3-TriMethylbutane
2,4-DiMethyl-l-Pentene
1-Methylcyclopentene
Benzene
3 ,3 -DiMethy Ipe ntane
Cyclohexane
4-Me-l-Hexene
2 -Methylhexa ne
2,3-Dimethylpentane
1,1-DiMeCyclopentane
3 -Methylhexa ne
5-Me-2-Hexene
c-l,3-DiMeCyclopentane
t- 1, 3, -DiMe Cyclopentane
2,2,4-TriMethylpentane
3-Me-3-Hexene
tra ns -3 -He pte ne
n-Heptane
tra ns -3 -He pte ne
Unknown
3-Ethyl-2-Pentene
3-Methyl-2-Hextene
2,4,4-TriMethyl-l-Pentene
cis-2-Heptene
MethylCyclohexane
Unknown
2,5-DiMethylhexane
2,4-DiMethylhexane + EthylCyclopentane
3,3-DiMethylhexane + 1,2,4-TriMeCyclopentane
ctc-l,2,3-TriMeCyclopentane
Profile 8762 Profile 8763
Headspace Vapors EO Headspace Vapors E10
VOC type % of Total VOC Ratio HS to Whole Gasoline % of Total VOC Ratio HS to Whole Gasoline
ppb ppb
o 1.420 0.025 5.0 1.200 0.017 3.6
p 3.090 0.054 8.9 2.740 0.038 6.2
p 17.310 0.303 15.6 16.830 0.236 11.3
o 3.440 0.060 4.8 3.170 0.044 3.3
o 3.670 0.064 8.3 3.430 0.048 8.7
o 0.580 0.010 2.5 0.340 0.005 1.0
p 248.950 4.352 11.1 245.340 3.443 9.8
o 11.070 0.194 9.6 10.640 0.149 8.6
p 5.340 0.093 8.7 5.510 0.077 8.3
o 10.960 0.192 7.8 10.600 0.149 6.8
o 6.530 0.114 5.6 6.150 0.086 5.4
ox 0.000 0.000 0.0 773.130 12.756 1.6
p 2564.210 44.829 4.6 2600.840 36.495 4.2
o 27.510 0.481 4.0 27.640 0.388 3.7
o 55.880 0.977 .9 56.860 0.798 3.5
p 332.580 5.814 .4 347.780 4.880 3.2
o 1.020 0.018 .3 0.930 0.013 3.1
o 70.600 1.234 .3 72.140 1.012 3.0
u 0.940 0.016 .9 0.750 0.011 2.4
o 38.470 0.673 .3 38.880 0.546 3.0
o 103.970 1.818 .0 104.510 1.466 2.7
p 26.870 0.470 2.2 28.860 0.405 2.1
o 12.570 0.220 2.4 12.840 0.180 2.2
o 6.020 0.105 1.9 5.700 0.080 1.7
p 19.610 0.343 2.0 20.620 0.289 1.9
p 264.190 4.619 .6 285.050 4.000 1.6
p 216.080 3.778 .5 235.960 3.311 1.5
p 124.530 2.177 .3 137.510 1.930 1.3
o 10.660 0.186 .3 12.000 0.168 1.3
p 61.420 1.074 .0 69.510 0.975 1.
o 5.980 0.105 .1 6.530 0.092 1.
o 8.200 0.143 .1 8.990 0.126 1.
o 12.760 0.223 .1 11.130 0.156 1.
o 6.500 0.114 .1 6.970 0.098 1.
o 1.500 0.026 .2 1.480 0.021 1.2
o 4.910 0.086 .1 5.150 0.072 1.1
o 8.770 0.153 0.9 9.740 0.137 1.0
p 3.410 0.060 0.8 3.850 0.054 0.9
p 56.810 0.993 1.0 63.390 0.889 1.0
p 153.070 2.676 0.7 179.780 2.523 0.8
p 5.020 0.088 0.7 6.340 0.089 0.9
o 0.390 0.007 0.8 0.400 0.006 0.7
o 5.560 0.097 0.8 6.240 0.088 0.9
a 19.710 0.345 0.9 21.280 0.299 0.9
p 3.190 0.056 0.6 3.600 0.051 0.7
p 9.350 0.163 0.8 10.650 0.149 0.8
o 0.350 0.006 0.6 0.470 0.007 0.5
p 30.510 0.533 0.5 38.480 0.540 0.6
p 208.240 3.641 0.5 255.640 3.587 0.6
p 1.280 0.022 0.7 1.460 0.020 0.7
p 30.730 0.537 0.5 38.420 0.539 0.5
o 0.490 0.009 0.8 0.430 0.006 0.7
p 6.210 0.109 0.5 7.660 0.107 0.6
p 8.120 0.142 0.5 10.310 0.145 0.6
p 297.780 5.206 0.4 384.850 5.400 0.5
o 0.890 0.016 1.0 0.820 0.012 0.8
o 1.230 0.022 0.8 0.900 0.013 0.6
p 16.330 0.285 0.4 21.620 0.303 0.5
o 2.790 0.049 0.5 2.730 0.038 0.4
u 0.680 0.012 0.5 0.790 0.011 0.6
o 0.430 0.008 0.5 0.590 0.008 0.7
o 0.630 0.011 0.4 0.870 0.012 0.5
o 0.730 0.013 0.5 1.070 0.015 0.6
o 0.570 0.010 0.4 0.660 0.009 0.5
p 9.220 0.161 0.4 11.830 0.166 0.4
u 1.090 0.019 0.5 1.360 0.019 0.5
p 24.690 0.432 0.3 34.810 0.488 0.3
p 34.470 0.603 0.3 47.980 0.673 0.4
p 1.420 0.025 0.3 1.990 0.028 0.4
p 0.640 0.011 0.4 0.770 0.011 0.4
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Gasoline # 41033 Headspace@25C and Whole Gas Analyses (continued) |
NAME
ctc-l,2,3-TriMeCyclopentane
2,3,4-TriMethylpentane
Toluene
2,3-DiMethylhexane
2-Methylheptane
4-MeHeptane
3,4-DiMethylhexane
3-Methylheptane
ctc-l,2,4-TriMeCyclopentane
t-l,4-DiMeCyclohexane
Unknown
1,1-DiMethylcyclohexane
Unknown
2,2,4-TriMethylhexane
Unknown
n-Octane
cis-2-Octene
Isopropylcyclopentane
2,3,5-TriMethylhexane
2,4-DiMethylheptane
2,6-DiMethylheptane
lc2-DiMethylcyclohexane n-Propylcyclopentane
2,5-DiMeHeptane
Unknown
1,1,4-TriMeCyclohexane
Ethylbenzene
ctt-l,2,4-TriMeCyclohexane
m-& p-Xylene
3-Methyloctane
ctc-l,2,4-TriMeCyclohexane
3,3-DiEthylpentane
o-Xylene
Nonene-1
1,1,2-TriMeCyclohexane
Nonane
trans-2-Nonene
Isopropylbenzene
3,5-DiMethyloctane
2,6-DiMethyloctane
n-Propylbenzene
m-Ethyltoluene
p-Ethyltoluene
1,3,5-TriMethylbenzene
3-Methylnonane
o-Ethyltoluene
1,2,4-TriMethylbenzene
n-Decane
Isobutylbenzene + l-Me-2-Propylcyclohexane
sec-Butylbenzene
m-Cymene
1,2,3-TriMethylbenzene
Indane
m-Diethylbenzene
l,Me-3-n-Propylbenzene
n-Butylbenzene
l-Me-2-n-Propylbenzene
l,4-DiMe-2-Ethylbenzene
Unknown
l,2-DiMe-4-Ethylbenzene
l,3-DiMe-2-Ethylbenzene
n-Undecane
l,2-DiMe-3-Ethylbenzene
1,2,4,5-Tetra-Me-Benzene
Unknown
Unknown
Methylindane
n-Pentylbenzene + t-l-Me-2-(4MP)cyclohexane
Unknown
t-l-But-3,5-DiMeBenzene
Naphthalene
n-Dodecane
Profile 8762
Headspace Vapors EO
vocijp.
P
P
a
P
P
P
P
P
P
P
u
P
u
P
u
P
o
P
P
P
P
P
P
u
P
a
P
a
P
P
P
a
o
P
P
o
a
P
P
a
a
a
a
P
a
a
P
a
a
a
a
n
a
a
a
a
a
u
a
a
P
a
a
u
u
n
a
u
a
n
P
% of Total VOC Rat
ppb
0.640
100.690
189.470
19.740
4.200
1.920
3.740
5.220
1.300
26.500
0.600
0.360
0.530
2.520
0.590
4.650
1.190
0.900
1.770
0.830
8.630
0.960
27.440
1.180
1.700
0.450
5.670
1.540
1.540
0.380
0.880
1.280
0.490
0.350
3.140
8.750
3.990
4.520
0.120
3.180
10.910
0.340
0.210
0.270
0.320
2.090
0.650
0.640
0.850
0.750
0.680
0.680
0.520
0.400
0.790
0.350
0.000
0.310
0.011
1.760
3.312
0.345
0.073
0.034
0.065
0.091
0.023
0.000
0.463
0.010
0.006
0.009
0.000
0.044
0.010
0.000
0.081
0.021
0.016
0.000
0.031
0.015
0.000
0.151
0.017
0.480
0.021
0.030
0.008
0.099
0.027
0.027
0.007
0.015
0.022
0.009
0.006
0.055
0.153
0.070
0.079
0.002
0.056
0.191
0.006
0.004
0.005
0.006
0.037
0.011
0.000
0.011
0.015
0.013
0.012
0.000
0.012
0.000
0.009
0.000
0.007
0.014
0.000
0.006
0.000
0.000
0.000
0.000
0.005
OHS
0.4
0.3
0.3
0.3
0.2
0.2
0.2
0.2
0.4
0.0
0.2
0.3
0.3
0.2
0.0
0.2
0.2
0.0
0.2
0.3
0.2
0.0
0.2
0.5
0.0
0.2
0.2
0.1
0.2
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.4
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.0
0.1
0.1
0.1
0.0
0.1
0.0
0.4
0.0
0.1
0.1
0.0
0.2
0.0
0.0
0.0
0.3
1
Profile 8763
Headspace Vapors E10
o Whole Gasoline % of Total VOCRat
ppb
0.770 0.011
142.440 1.999
255.930 3.591
28.230 0.396
6.000 0.084
2.810 0.039
5.310 0.075
7.280 0.102
1.560 0.022
0.000
40.450 0.568
0.650 0.009
0.400 0.006
0.950 0.013
0.000
3.940 0.055
1.320 0.019
0.000
6.910 0.097
1.950 0.027
1.800 0.025
0.000
2.680 0.038
0.840 0.012
0.440 0.006
12.820 0.180
1.370 0.019
40.450 0.568
1.610 0.023
2.790 0.039
0.810 0.011
8.430 0.118
2.700 0.038
2.700 0.038
0.720 0.010
1.620 0.023
2.180 0.031
0.110 0.002
0.490 0.007
4.210 0.059
12.220 0.171
5.480 0.077
5.790 0.081
0.170 0.002
4.280 0.060
15.640 0.219
0.720 0.010
0.450 0.006
0.430 0.006
0.410 0.006
2.650 0.037
0.790 0.011
0.000
0.960 0.013
1.520 0.021
0.950 0.013
0.420 0.006
0.490 0.007
0.990 0.014
0.000
0.330 0.005
0.000
0.280 0.004
0.510 0.007
0.210 0.003
0.000
0.000
0.180 0.003
0.000
o HS to Who e Gasoline
0.4
0.
0.
0.
0.
0.
0.
0.3
0.4
0.0
0.2
0.2
0.3
0.3
0.0
0.2
0.3
0.0
0.2
0.4
0.4
0.0
0.2
0.4
0.6
0.2
0.2
0.2
0.2
0.1
0.2
0.2
0.2
0.2
0.2
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.0
0.1
0.1
0.0
0.1
0.1
0.0
0.1
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
-------
Summary Statistics on Headspace Profiles
NAME
Sum of GC Peaks
Sum of ALL GC Peaks
%Sum of Peaks are of Total HC
Sum of Parafins
% of Total
Sum of Aromatics
% of Total
Sum of Olefins
% of Total
% Ethanol is of Total HC
% Ethanol adjusted for FID Response is of Total HC
Sum of Unknowns
% of Total
Sum of Fused Rings
% of Total
GasEO HS@25C
5,698
5,720
99.610
4,936.64
86.303
293.58
5.132
435.40
7.612
0.000
31.19
0.545
1.00
0.017
GasElO HS@2
7,000
7,032
99.545
5,339.24
75.925
397.77
5.656
443.35
6.304
10.994
12.757
45.80
0.651
0.97
0.014
-------
Gasoline # 41033 Headspace@25C and Whole Gas Analyses
Whole Gasoline Analysis
NAME
Propylene
Propane
Isobutane
Butene-1
Isobutylene
1,3-Butadiene
n- Butane
t-Butene-2
2,2-Dimethylpropane
c-Butene-2
3-Methyl-l-Butene
Ethanol
Isopentane
Pentene-1
2-Methyl-l-Butene
n-Pentane
Isoprene
trans-2-Pentene
Unknown
cis-2-Pentene
2-Methyl-2-Butene
2,2-Dimethylbutane
Cyclopentene
3-Methyl-l-pentene
Cyclopentane
2,3-Dimethylbutane
2-Methylpentane
3-Methylpentane
2-Methyl-l-Pentene + Hexene-1
n-Hexane
trans-3-Hexene
trans-2-Hexene
2-Methyl-2-Pentene
cis-3-Hexene
4 -Methyl cyclopentene
cis-2-Hexene
c is-3 -Methyl -2 -pentene
2,2-DiMethylpentane
Methylcyclo pe nta ne
2,4-Dimethylpentane
2,2,3-TriMethylbutane
2,4-DiMethyl-l-Pentene
1 -Methyl cyclopentene
Benzene
3,3-DiMethylpentane
Cyclohexane
4-Me-l-Hexene
2-Methylhexane
2,3-Dimethylpentane
1,1-DiMeCyclopentane
3-Methylhexane
5-Me-2-Hexene
c-l,3-DiMeCyclopentane
t-l,3,-DiMeCyclopentane
2,2,4-TriMethylpentane
3-Me-3-Hexene
trans-3-Heptene
n-Heptane
trans-3-Heptene
Unknown
3-Ethyl-2-Pentene
3-Methyl-2-Hextene
2,4,4-TriMethyl-l-Pentene
cis-2-Heptene
MethylCyclohexane
Unknown
2,5-DiMethylhexane
2,4-DiMethylhexane + EthylCyclopentane
3,3-DiMethylhexane + 1,2,4-TriMeCyclopentane
ctc-l,2,3-TriMeCyclopentane
VOC type
O
P
P
O
O
O
P
O
P
O
O
ox
P
O
O
P
O
O
u
O
O
P
O
O
P
P
P
P
O
P
O
O
O
O
O
O
O
P
P
P
P
O
O
a
P
P
O
P
P
P
P
O
P
P
P
O
O
P
O
u
O
O
O
O
P
u
P
P
P
P
1
EO Gasoline
o
ppb
0.550
0.680
2.170
1.396
0.870
0.450
43.790
2.248
1.202
2.760
2.300
0.000
1085.710
13.330
28.050
192.770
0.600
42.090
0.470
23.140
68.840
24.150
10.240
6.350
19.010
322.610
290.040
188.070
16.370
115.050
10.440
15.100
23.100
11.860
2.440
8.810
18.110
8.580
114.310
416.280
13.600
0.900
14.230
43.490
9.730
23.880
1.240
121.640
781.810
3.800
127.490
1.270
24.060
33.910
1454.670
1.790
2.890
83.300
11.360
2.440
1.560
3.090
3.140
2.500
47.670
4.420
177.140
238.440
9.740
3.490
o of Total VOC
0.005
0.006
0.019
0.012
0.008
0.004
0.391
0.020
0.011
0.025
0.021
0.000
9.704
0.119
0.251
1.723
0.005
0.376
0.004
0.207
0.615
0.216
0.092
0.057
0.170
2.884
2.592
1.681
0.146
1.028
0.093
0.135
0.206
0.106
0.022
0.079
0.162
0.077
1.022
3.721
0.122
0.008
0.127
0.389
0.087
0.213
0.011
1.087
6.988
0.034
1.140
0.011
0.215
0.303
13.002
0.016
0.026
0.745
0.102
0.022
0.014
0.028
0.028
0.022
0.426
0.040
1.583
2.131
0.087
0.031
E10 Gasoline
ppb
0.490
0.640
2.160
1.380
0.575
0.490
36.360
1.800
0.970
2.270
1.650
601.970
903.320
10.770
23.520
160.060
0.430
35.140
0.460
19.120
56.350
19.820
8.360
4.890
15.520
258.910
232.290
150.340
13.650
91.870
8.310
12.000
14.750
9.430
1.870
6.820
14.140
6.470
90.990
328.280
10.100
0.780
10.460
36.140
7.950
19.510
1.430
97.660
622.010
3.030
102.130
0.950
19.220
27.110
1163.680
1.450
2.330
68.520
8.960
2.010
1.220
2.560
2.720
1.942
38.930
3.620
146.080
194.880
7.990
2.840
% of Total VOC
0.005
0.006
0.021
0.013
0.006
0.005
0.351
0.017
0.009
0.022
0.016
7.731
8.723
0.104
0.227
1.546
0.004
0.339
0.004
0.185
0.544
0.191
0.081
0.047
0.150
2.500
2.243
1.452
0.132
0.887
0.080
0.116
0.142
0.091
0.018
0.066
0.137
0.062
0.879
3.170
0.098
0.008
0.101
0.349
0.077
0.188
0.014
0.943
6.006
0.029
0.986
0.009
0.186
0.262
11.237
0.014
0.022
0.662
0.087
0.019
0.012
0.025
0.026
0.019
0.376
0.035
1.411
1.882
0.077
0.027
-------
Gasoline # 41033 Headspace@25C and Whole Gas Analyses (continued) |
Whole Gasoline Analysis
NAME
2,3,4-TriMethylpentane
Toluene
2,3-DiMethylhexane
2-Methylheptane
4-MeHeptane
3,4-DiMethylhexane
3-Methylheptane
ctc-l,2,4-TriMeCyclopentane
t-l,4-DiMeCyclohexane
Unknown
1,1-DiMethylcyclohexane
Unknown
2,2,4-TriMethylhexane
Unknown
n-Octane
cis-2-Octene
Isopropylcyclopentane
2,3,5-TriMethylhexane
2,4-DiMethylheptane
2,6-DiMethylheptane
lc2-DiMethylcyclohexane n-Propylcyclopentane
2,5-DiMeHeptane
Unknown
1,1,4-TriMeCyclohexane
Ethylbenzene
ctt-l,2,4-TriMeCyclohexane
m-& p-Xylene
3-Methyloctane
ctc-l,2,4-TriMeCyclohexane
3,3-DiEthylpentane
o-Xylene
Nonene-1
1,1,2-TriMeCyclohexane
Nonane
trans-2-Nonene
Isopropylbenzene
3,5-DiMethyloctane
2,6-DiMethyloctane
n-Propylbenzene
m-Ethyltoluene
p-Ethyltoluene
1,3,5-TriMethylbenzene
3 -Methylnonane
o-Ethyltoluene
1,2,4-TriMethylbenzene
n-Decane
Isobutylbenzene + l-Me-2-Propylcyclohexane
sec-Butylbenzene
m-Cymene
1,2,3-TriMethylbenzene
Indane
m-Diethylbenzene
l,Me-3-n-Propylbenzene
n-Butylbenzene
l-Me-2-n-Propylbenzene
l,4-DiMe-2-Ethylbenzene
Unknown
l,2-DiMe-4-Ethylbenzene
l,3-DiMe-2-Ethylbenzene
n-Undecane
l,2-DiMe-3-Ethylbenzene
1,2,4,5-Tetra-Me-Benzene
Unknown
Unknown
Methylindane
n-Pentylbenzene + t-l-Me-2-(4MP)cyclohexane
Unknown
t-l-But-3,5-DiMeBenzene
Naphthalene
n-Dodecane
EO Gasoline E10 Gasoline
VOC type
P
a
P
P
P
P
P
P
P
u
P
u
P
u
P
o
P
P
P
P
P
P
u
P
a
P
a
P
P
P
a
o
P
P
o
a
P
P
a
a
a
a
P
a
a
P
a
a
a
a
n
a
a
a
a
a
u
a
a
P
a
a
u
u
n
a
u
a
n
P
% of Total VOC
ppb ppb
% of Total VOC
775.810 6.934 639.310 6.173
1339.630 11.974 1109.480 10.713
153.750 1.374 133.550 1.290
36.440 0.326 30.590 0.295
15.540 0.139 13.350 0.129
31.520 0.282 26.630 0.257
46.520 0.416 39.710 0.383
6.940 0.062
1.700 0.015
6.150 0.059
1.640 0.016
282.200 2.522 237.980 2.298
4.290 0.038
2.630 0.024
6.200 0.055
0.990 0.009
3.940 0.038
2.290 0.022
5.300 0.051
0.910 0.009
29.350 0.262 24.980 0.241
6.710 0.060
1.040 0.009
5.740 0.055
0.900 0.009
50.700 0.453 44.620 0.431
7.980 0.071
7.970 0.071
2.090 0.019
6.930 0.067
6.930 0.067
1.820 0.018
21.030 0.188 18.550 0.179
3.310 0.030
1.270 0.011
2.780 0.027
1.110 0.011
106.170 0.949 95.190 0.919
11.070 0.099 10.030 0.097
368.860 3.297 3:
5.120 3.236
11.280 0.101 10.340 0.100
29.860 0.267 27.520 0.266
6.450 0.058
6.140 0.059
85.590 0.765 79.320 0.766
26.390 0.236 23.810 0.230
26.390 0.236 23.810 0.230
7.090 0.063
6.900 0.067
17.540 0.157 16.400 0.158
24.030 0.215 23.670 0.229
2.150 0.019
6.550 0.059H
2.500 0.024
6.450 0.062
61.570 0.550 64.280 0.621
203.520 1.819 214.260 2.069
87.280 0.780 93.290 0.901
111.050 0.993 119.840 1.157
1.900 0.017
2.550 0.025
73.670 0.658 79.500 0.768
285.760 2.554 321.300 3.103
10.610 0.095 11.860 0.115
5.960 0.053
5.280 0.047
7.010 0.063
6.870 0.066
5.990 0.058
8.510 0.082
51.460 0.460 61.020 0.589
14.230 0.127 16.620 0.160
0.000
0.000
44.380 0.397 57.420 0.554
31.470 0.281 42.860 0.414
18.940 0.169 24.990 0.241
9.310 0.083 13.290 0.128
8.680 0.078B
15.070 0.135 ;
1.190 0.011
2.300 0.021
4.320 0.039
2.220 0.118
.2.170 0.214
1.910 0.018
4.290 0.041
6.220 0.060
7.150 0.064 11.130 0.107
10.320 0.092 15.920 0.154
3.870 0.035
2.960 0.026
2.610 0.023
1.750 0.016
0.000
4.500 0.040
2.220 0.020
6.550 0.063
4.600 0.044
4.350 0.042
2.920 0.028
0.000
9.120 0.088
3.890 0.038
10
-------
Summary Statistics on Whole Gasoline Profiles
NAME
Sum of GC Peaks
Sum of ALL GC Peaks
%Sum of Peaks are of Total HC
Sum of Parafins
% of Total
Sum of Aromatics
% of Total
Sum of Olefins
% of Total
% Ethanol is of Total HC
% Ethanol adjusted for FID Response is of Total H
Sum of Unknowns
% of Total
Sum of Fused Rings
% of Total
C
GasEO Whole
11,038
11,189
98.654
7,295.60
65.203
2,994.77
26.765
405.26
3.622
0.000
321.08
2.870
21.69
0.194
GasE 10 Whole
10,039
10,221
98.221
5,950.96
58.224
2,838.12
27.768
329.93
3.228
5.890
7.264
287.66
2.814
30.34
0.297
11
-------
Calculated Profile for EO Gasoline Headspace Based on E10 Profile
Compound
1-METHYLPROPYLBENZENE
2-METHYLPROPYLBENZENE
1 ,1 ,2-TRIMETHYLCYCLOPENTANE
1 ,1 ,3-TRIMETHYLCYCLOPENTANE
1 ,1-DIMETHYLCYCLOHEXANE
1 ,1-DIMETHYLCYCLOPENTANE
1 ,2,3,4-TETRAMETHYLBENZENE
1 ,2,3,5-TETRAMETHYLBENZENE
1 ,2,3-TRIMETHYLBENZENE
1 ,2,3-TRIMETHYLCYCLOPENTANE
1 ,2,4,5-TETRAMETHYLBENZENE
1 ,2,4-TRIMETHYLBENZENE
1 ,2,4-TRIMETHYLCYCLOPENTANE
1,2-DIETHYLBENZENE
1 ,2-DIMETHYL-S-ETHYLBENZENE
1 .2-DIMETHYL-4-ETHYLBENZENE
PROPADIENE
1 ,3,5-TRIMETHYLBENZENE
1,3-BUTADIENE
CYCLOPENTADIENE
1,3-DIETHYLBENZENE
1 .3-DIMETHYL-2-ETHYLBENZENE
1 .3-DIMETHYL-4-ETHYLBENZENE
1 ,3-DIMETHYL-S-ETHYLBENZENE
1,4-DIETHYLBENZENE
1 .4-DIMETHYL-2-ETHYLBENZENE
1-BUTENE
1-BUTYNE
1 -ETHYL-TERT-BUTYLETHER
1-HEPTENE
1-HEXENE
1 -METHYL-2-ETHYLBENZENE
1 -METHYL-2-ISOPROPYLBENZENE
1 -METHYL-2-N-BUTYLBENZENE
1 -METHYL-2-N-PROPYLBENZENE
1-METHYL-2-TERT-BUTYLBENZENE
1 -METHYL-3-ETHYLBENZENE
1 -METHYL-3-ISOPROPYLBENZENE
1 -METHYL-3-N-PROPYLBENZENE
1 -METHYL-4-ETHYLBENZENE
1 -METHYL-4-ISOPROPYLBENZENE
1 -METHYL-4-NPROPYLBENZENE
1-METHYLCYCLOPENTENE
1-NONENE
1-OCTENE
1-PENTENE
1-PROPYNE
2,2,3-TRIMETHYLBUTANE
2,2,3-TRIMETHYLPENTANE
2,2,4-TRIMETHYLHEXANE
2,2,4-TRIMETHYLPENTANE
2,2,5-TRIMETHYLHEXANE
2,2-DIMETHYLBUTANE
2,2-DIMETHYLHEXANE
2,2-DIMETHYLOCTANE
2,2-DIMETHYLPENTANE
2,2-DIMETHYLPROPANE
2,3,3-TRIMETHYLPENTANE
2,3,4-TRIMETHYLPENTANE
2,3,5-TRIMETHYLHEXANE
2.3-DIMETHYL-2-BUTENE
2,3-DIMETHYLBUTANE
2,3-DIMETHYLHEPTANE
2,3-DIMETHYLHEXANE
2,3-DIMETHYLPENTANE
2,4,4-TRIMETHYL-1-PENTENE
2,4,4-TRIMETHYL-2-PENTENE
2.4-DIMETHYL-1-PENTENE
2,4-DIMETHYLHEPTANE
2,4-DIMETHYLHEXANE
2,4-DIMETHYLOCTANE
2,4-DIMETHYLPENTANE
2,5-DIMETHYLHEPTANE
Profile 8737 B
0.012%
0.009%
0.000%
0.000%
0.002%
0.002%
0.000%
0.000%
0.066%
0.000%
0.012%
0.267%
0.019%
0.000%
0.008%
0.039%
0.000%
0.091%
0.001%
0.000%
0.017%
0.000%
0.000%
0.000%
0.057%
0.025%
0.082%
0.000%
0.000%
0.000%
0.043%
0.070%
0.000%
0.001%
0.025%
0.000%
0.189%
0.018%
0.037%
0.073%
0.010%
0.000%
0.045%
0.000%
0.000%
0.270%
0.000%
0.039%
0.000%
0.036%
2.542%
0.000%
1.383%
0.000%
0.000%
0.072%
0.025%
0.000%
0.723%
0.034%
0.000%
1.667%
0.000%
0.203%
0.597%
0.014%
0.000%
0.005%
0.032%
0.413%
0.000%
0.650%
0.063%
Compound (CONTINUED)
2,5-DIMETHYLHEXANE
2,6-DIMETHYLHEPTANE
2,6-DIMETHYLOCTANE
2-BUTYNE
2-ETHYL-1-BUTENE
2-METHYL-1-BUTENE
2-METHYL-1-PENTENE
2-METHYL-2-BUTENE
2-METHYL-2-HEXENE
2-METHYL-2-PENTENE
2-METHYL-2-PROPENAL
2-METHYL-3-ETHYLPENTANE
TRANS-2-METHYL-3-HEXENE
2-METHYLHEPTANE
2-METHYLHEXANE
2-METHYLOCTANE
2-METHYLPENTANE
3.3-DIMETHYL-1 -BUTENE
3,3-DIMETHYLHEPTANE
3,3-DIMETHYLHEXANE
3,3-DIMETHYLPENTANE
3,4-DIMETHYLHEPTANE
3,4-DIMETHYLHEXANE
3,5-DIMETHYLHEPTANE
3,5-DIMETHYLOCTANE
3,6-DIMETHYLOCTANE
3-ETHYL-2-PENTENE
3-ETHYLHEXANE
3-ETHYLPENTANE
3-METHYL-1 -BUTENE
3-METHYL-1-HEXENE
3-METHYL-1-PENTENE
CIS-3-METHYL-2-HEXENE
3-METHYL-CIS-2-PENTENE
CIS-3-METHYL-3-HEXENE
3-METHYL-TRANS-2-PENTENE
3-METHYL-TRANS-3-HEXENE
3-METHYLCYCLOPENTENE
3-METHYLHEPTANE
3-METHYLHEXANE
3-METHYLNONANE
3-METHYLOCTANE
3-METHYLPENTANE
4.4-DIMETHYL-2-PENTENE
4,4-DIMETHYLHEPTANE
4-METHYL-1-HEXENE
4-METHYL-1-PENTENE
4-METHYL-CIS-2-PENTENE
4-METHYL-TRANS-2-PENTENE
4-METHYLHEPTANE
4-METHYLOCTANE
TRANS-5-METHYL-2-HEXENE
ACETALDEHYDE
ACETONE
ACETYLENE
ACROLEIN
BENZALDEHYDE
BENZENE
N-BUTYRALDEHYDE
C10H20
C11H16
UNIDENTIFIED C9-C12+
CIS.TRANS-1 ,2,4-TRIMETHYLCYCl
CIS-1 ,2-DIMETHYLCYCLOHEXANE
Cis-1 ,3-DIMETHYLCYCLOHEXANE
CIS-1 ,3-DIMETHYLCYCLOPENTAN
1-CIS,2-TRANS,3-TRIMETHYLCYCI
CIS-1 ,TRANS-2,4-TRIMETHYLCYCI
CIS-1 ,TRANS-2,TRANS-4-TRIMETh
1-CIS-2-DIMETHYLCYCLOPENTAN
CIS-1-ETHYL-3-METHYLCYCLOPEI
CIS-2-BUTENE
Cis-2-HEPTENE
Profile 8737E
0.227%
0.028%
0.053%
0.000%
0.000%
0.478%
0.090%
0.833%
0.000%
0.117%
0.000%
0.001%
0.000%
0.174%
0.807%
0.043%
4.607%
0.000%
0.000%
0.055%
0.079%
0.000%
0.045%
0.000%
0.003%
0.003%
0.000%
0.000%
0.235%
0.114%
0.000%
0.058%
0.000%
0.000%
0.000%
0.000%
0.000%
0.002%
0.194%
0.794%
0.017%
0.052%
2.510%
0.000%
0.004%
0.007%
0.000%
0.000%
0.000%
0.083%
0.000%
0.000%
0.000%
0.000%
0.000%
0.000%
0.000%
1 .202%
0.000%
0.000%
0.000%
0.000%
0.001%
0.025%
0.000%
0.174%
0.005%
0.008%
0.003%
0.000%
0.000%
0.208%
0.009%
12
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Compound
Cis-2-OCTENE
CIS-2-PENTENE
CIS-3-HEXENE
CROTONALDEHYDE
CYCLOHEXANE
CYCLOHEXENE
CYCLOPENTANE
CYCLOPENTENE
ETHANE
ETHANOL
ETHYLBENZENE
ETHYLCYCLOHEXANE
ETHYLCYCLOPENTANE
ETHYLENE
FORMALDEHYDE
INDAN
ISOBUTANE
2-METHYLPROPENE (ISOBUTYLENE)
M-& P-XYLENE
2-METHYLBUTANE (ISOPENTANE)
ISOPRENE
2-PROPANOL
ISOPROPYLBENZENE (CUMENE)
ISOPROPYLCYCLOHEXANE
ISOVALERALDEHYDE
METHANE
METHANOL
MEK
O-METHYLSTYRENE
MTBE
METHYLCYCLOHEXANE
METHYLCYCLOPENTANE
N-BUTANE
N-BUTYLBENZENE
N-BUTYLCYCLOPENTANE
N-DECANE
N-DODECANE
N-HEPTANE
N-HEXANE
N-NONANE
N-OCTANE
N-PENTANE
N-PENTYLBENZENE
N-PROPYLBENZENE
N-TRIDECANE
N-UNDECANE
NAPHTHALENE
O-XYLENE
C10H22
C7H12
C8H16
PROPANE
PROPIONALDEHYDE
PROPYLCYCLOHEXANE
N-PROPYLCYCLOPENTANE
PROPYLENE
STYRENE
TOLUALDEHYDE
TOLUENE
TRANS-1 ,2-DIMETHYLCYCLOHEXANE
TRANS-1 ,2-DIMETHYLCYCLOPENTANE
TRANS-1 ,3-DIMETHYLCYCLOHEXANE
TRANS-1 ,3-DIMETHYLCYCLOPENTANE
TRANS-1 ,3-PENTADIENE
TRANS-1 ,4-DIMETHYLCYCLOHEXANE
TRANS-1-ETHYL-3-METHYLCYCLOPENTANE
TRANS-2-BUTENE
TRANS-2-HEPTENE
TRANS-2-HEXENE
TRANS-2-OCTENE
TRANS-2-PENTENE
TRANS-3-HEPTENE
TRANS-3-HEXENE
TRANS-3-NONENE
Profile 8737B
0.002%
0.327%
0.055%
0.000%
0.228%
0.000%
0.577%
0.119%
0.056%
0.124%
0.273%
0.000%
0.000%
0.000%
0.000%
0.037%
5.357%
0.090%
0.997%
27.821%
0.022%
0.000%
0.046%
0.000%
0.000%
0.000%
0.000%
0.000%
0.000%
0.000%
0.298%
1.150%
22.649%
0.000%
0.000%
0.063%
0.023%
0.494%
1 .684%
0.073%
0.153%
7.187%
0.000%
0.067%
0.000%
0.040%
0.027%
0.312%
0.000%
0.000%
0.000%
0.342%
0.000%
0.004%
0.001%
0.013%
0.000%
0.000%
2.918%
0.000%
0.000%
0.000%
0.016%
0.000%
0.003%
0.000%
0.043%
0.000%
0.099%
0.003%
0.641%
0.013%
0.081%
0.000%
Compound
TRANS-4-OCTENE
HEXALDEHYDE
VALERALDEHYDE
P-METHYLSTYRENE
NONANAL
OCTANAL
1-UNDECENE
1-BUTENE+ ISOBUTENE
1,3-HEXADIENE (TRANS)
3-METHYL-2-PENTENE
PROPYLTOLUENE
O-TOLUALDEHYDE
ISOPROPYLCYCLOPENTANE
C11H14
3-ETHYLPENTENE
DANITOL
2-BUTENE
METHYLINDANE
CIS-2-NONENE
T-1 -BUTYL-2-METHYLBENZENE
2,5-DIMETHYLBENZALDEHYDE
P-DIETHYLBENZENE &N-BUTYLBE
4-METHYLCYCLOPENTENE
C10H12
C11H24
C12H26
2-OCTENE
C-3-HEXENE
UNIDENTIFIED C6
C6H8
UNIDENTIFIED C7
C7H14
C8H14
C9H18
1 ,5-DIMETHYLCYCLOPENTENE
ETHYLCYCLOPENTENE
ISOBUTYRALDEHYDE
CAMPHENE
METHYLBENZALDEHYDE
METHYLCYCLOHEXENE
PENTADIENE
PIPERYLENE
1 -TERT-BUTYL-3.5-DIMETHYLBEN
UNKNOWN
Profile 8737B
0.000%
0.000%
0.000%
0.000%
0.000%
0.000%
0.004%
0.000%
0.000%
0.097%
0.000%
0.000%
0.000%
0.000%
0.050%
0.049%
0.192%
0.031%
0.000%
0.000%
0.000%
0.003%
0.004%
0.000%
0.000%
0.000%
0.000%
0.000%
0.000%
0.000%
0.000%
0.000%
0.000%
0.000%
0.000%
0.000%
0.000%
0.000%
0.000%
0.000%
0.000%
0.000%
0.001%
0.000%
13
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