TECHNICAL NOTEResponse Factors for Flame Ionization Detector Operation
FLAME IONIZATION DETECTOR OPERATION BASICS
DataFID™ and MicroFID II™ portable flame ionization
detectors are designed to monitor volatile organic
compounds (VOC). Establishing a response factor for a
compound over a wide concentration range is
necessary to accurately determine the unknown
concentration at the sampling point.
Since DataFID and MicroFID II contain the same flame
ionization detection technology, response factors for
both instruments are identical. In this document,
DataFID is used to represent both DataFID and
MicroFID II.
DataFID uses a flame ionization detector (FID) for the
measurement of combustible organic compounds in air
at parts per million (ppm) levels. The permanent air
gases (argon, carbon dioxide, nitrogen, oxygen, water
vapor, etc.) are not ionized by the FID, and therefore
are not measured.
When DataFID is flamed on, an internal pump draws
air in through the DataFID inlet. This sample air
provides the oxygen necessary for combustion in the
hydrogen fed flame.
Figure 1 Flame Ionization Detector
When the proper ratio of hydrogen to air is present in
the combustion chamber, the flame is ignited with a
glow plug. A thermocouple is used to monitor the status
of the flame.
When the sample passes through the flame, the
combustible organic compounds in the sample will be
ionized. After the compounds have been ionized by the
flame, the ionized particles are subjected to a
continuous electric field between the repeller electrode
at the jet (+75 V) and the collector electrode.
The ions move in the electric field, generating a
current, which is proportional to the concentration of
the ionized molecules in the ionization chamber. An
electrometer circuit converts the current to a voltage
which is then fed to the microprocessor.
After the sample passes through the flame and has
become ionized, it is vented from the detector through
a flame arrestor, also known as the exhaust frit. The
flame arrestor prevents the flame from igniting any
flammable gases present in the sampling location.
Electrometer
Repeller Electrode(Jet +75 Volts)
Collector Electrode
Sample In
Exhaust Out Flame Arrestor
Flame Arrestor
MicroprocessorCombustion Chamber
Glow PlugThermocouple
1 of 50
Detector Response
DataFID is strictly an organic compound detector. It
does not respond to inorganic compounds. DataFID
sensitivity is highly dependent on chemical structure
and bonding characteristics. The combustion efficiency
of a compound determines its sensitivity.
Simple saturated hydrocarbons (methane, ethane,
etc.) possess high combustion efficiencies and are
among the compounds that produce the highest
DataFID response. Organic fuels (acetylene, refined
petroleum products), burn easily and are detected
extremely well.
The presence of substituted functional groups (amino,
hydroxyl, halogens) on a simple hydrocarbon, such as
methanol and chloromethane, reduces its combustion
efficiency and thus DataFID’s sensitivity to the
compounds. A greater number of carbon atoms can
offset this loss of sensitivity due to substitution. For
example, DataFID is more sensitive to n-butanol than it
is to methanol.
Introduction to Response Factor
DataFID measures total VOCs and cannot distinguish
between different VOCs. In some applications, the
concentration of a specific compound must be
extrapolated from total VOC readings.
For total VOC measurements, DataFID is calibrated
with methane. The sensitivity of other chemicals can be
calculated using the methane calibration as a
reference. Because methane is the reference
compound, it has a response factor of 1.0.
A known standard of a VOC is analyzed on a DataFID
calibrated with 500 ppm methane and DataFID reports
a concentration. The following formula is used to
calculate the response factor:
A response factor less than 1.0 indicates a compound
response higher than methane. A response factor
greater than 1.0 indicates a lower response than that of
methane.
Response Factor Examples
1 100 ppm of a compound reads 80 ppm on DataFID,
the Response Factor would be:
2 100 ppm of a compound reads 125 ppm on
DataFID, the Response Factor would be:
Response Factor Application Examples
1 Calculate Actual Concentration in ppm
Formula
Example
2 Calculate DataFID Response in ppm
Formula
Example
Each compound has its own unique set of response
factors. Response factors can change as the
concentration of a compound varies, so the response
factor at 1,000 ppm will most likely be different from
that of 500 ppm. Please refer to the specific
compounds in this document and choose the response
factor that best fits the nearest concentration value.
DataFID can use a response factor to automatically
adjust display concentration. Refer to the DataFID
Operating Manual (PN 074-578-P1) for a detailed
procedure to enter Response Factor information into
the instrument.
Response Factor for MicroFID II
Similarly for MicroFID II, refer to the MicroFID II
Operating Manual (PN 074-579-P1) for a detailed
procedure to enter Response Factor information.
NOTE: This document provides response factors for a
specific list of compounds. It is intended to cover the
compounds most often encountered.
Response FactorActual ConcentrationDataFID Response
---------------------------------------------------=
Response Factor 100 ppm (Actual Concentration in ppm)80 ppm (DataFID Response in ppm)
------------------------------------------------------------------------------------------------ 1.25= =
Response Factor 100 ppm (Actual Concentration in ppm)125 ppm (DataFID Response in ppm)
------------------------------------------------------------------------------------------------ 0.80= =
Response Factor DataFID Response in ppmActual Concentration in ppm=
1.25 (Response Factor 80 (DataFID Response in ppm)100 (Actual Concentration in ppm)=
Actual Concentration in ppmResponse Factor
--------------------------------------------------------------------- DataFID Response=
100 (Actual Concentration in ppm)0.80 (Response Factor)
------------------------------------------------------------------------------------ 125 (DataFID Response)=
Response Factors for Flame Ionization Detector Operation 2 of 50
RESPONSE FACTORS
Acetic Acid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Acetone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Acetonitrile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Acrylic Acid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Aniline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Benzene. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Benzyl Chloride . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
1,3 Butadiene. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Butane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Butanol. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
1- Butene . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Butyl Acetate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Butyl Acrylate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Chlorobenzene . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Chloroform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Cyclohexane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
1,1 Difluoroethylene. . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Dimethylformamide . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Ethane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Ethanol. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
2-Ethoxyethanol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Ethyl Acrylate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Ethylbenzene . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Ethylene. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Ethylene Oxide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Heptane. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Hexane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Iodomethane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Isobutylene . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Methanol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Methyl Ethyl Ketone . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Methyl Isobutyl Ketone . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Methyl Tertiary Butyl Ether (MTBE). . . . . . . . . . . . . . . . . 36
Octane. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
n-Pentane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Pentanol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Propane. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Propanol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Propylene . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Styrene . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Tetrachloroethylene. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Tetrahydrofuran. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Toluene . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Trichloroethylene. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Vinyl Acetate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Vinyl Chloride . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Xylene . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Response Factors for Flame Ionization Detector Operation 3 of 50
Acetic Acid
Response Curve
Response Factors
Concentration ppm Response Factor
10 0.980
50 0.912
100 0.856
500 0.847
1000 0.842
5000 0.829
10000 0.825
CAS Number Formula Formula Weight Vapor Pressure in mmHg
64-19-7 C2H4O2 60.052 11
Response Factors for Flame Ionization Detector Operation 4 of 50
Acetone
Response Curve
Response Factors
Concentration ppm Response Factor
100 3.125
500 2.732
2000 1.664
5000 1.156
10000 0.920
CAS Number Formula Formula Weight Vapor Pressure in mmHg
67-64-1 C3H6O 58.0791 180
Response Factors for Flame Ionization Detector Operation 5 of 50
Acetonitrile
Response Curve
Response Factors
Concentration to ppm Response Factor
100 1.020
500 1.219
1000 1.291
5000 1.460
CAS Number Formula Formula Weight Vapor Pressure in mmHg
75-05-8 C2H3N 41.052 73
Response Factors for Flame Ionization Detector Operation 6 of 50
Acrylic Acid
Response Curve
Response Factors
Concentration ppm Response Factor
10 0.526
50 0.481
100 0.476
500 0.439
1000 0.401
5000 0.356
10000 0.344
CAS Number Formula Formula Weight Vapor Pressure in mmHg
79-10-7 C3H4O2 72.0627 3
Response Factors for Flame Ionization Detector Operation 7 of 50
Aniline
Response Curve
Response Factors
Concentration to ppm Response Factor
10 0.435
50 0.811
100 0.962
500 1.127
1000 0.943
CAS Number Formula Formula Weight Vapor Pressure in mmHg
62-53-3 C7H7N 93.1265 0.6
Response Factors for Flame Ionization Detector Operation 8 of 50
Benzene
Response Curve
Response Factors
Concentration ppm Response Factor
10 0.91
50 0.91
100 0.85
500 0.82
1000 0.80
5000 0.79
10000 0.71
CAS Number Formula Formula Weight Vapor Pressure in mmHg
71-43-2 C6H6 78.1118 75
Response Factors for Flame Ionization Detector Operation 9 of 50
Benzyl Chloride
Response Curve
Response Factors
Concentration ppm Response Factor
10 1.887
50 1.894
100 1.961
500 2.119
1000 2.169
5000 2.284
10000 2.341
CAS Number Formula Formula Weight Vapor Pressure in mmHg
100-44-7 C7H7Cl 126.5832 3.3
Response Factors for Flame Ionization Detector Operation 10 of 50
1,3 Butadiene
Response Curve
Response Factors
Concentration ppm Response Factor
10 2.381
50 2.051
100 1.932
500 1.449
1000 1.285
5000 0.909
10000 0.778
CAS Number Formula Formula Weight Vapor Pressure in mmHg
106-99-0 C4H6 54.0904 1824
Response Factors for Flame Ionization Detector Operation 11 of 50
Butane
Response Curve
Response Factors
Concentration ppm Response Factor
10 2.463
50 2.457
100 2.439
500 1.667
1000 1.333
5000 0.573
10000 0.528
CAS Number Formula Formula Weight Vapor Pressure in mmHg
106-97-8 C4H10 58.1222 1558
Response Factors for Flame Ionization Detector Operation 12 of 50
Butanol
Response Curve
Response Factors
Concentration ppm Response Factor
10 1.015
50 0.926
100 0.909
500 0.882
1000 0.851
5000 0.818
10000 0.734
CAS Number Formula Formula Weight Vapor Pressure in mmHg
71-36-3 C4H10O 74.1216 6
Response Factors for Flame Ionization Detector Operation 13 of 50
1- Butene
Response Curve
Response Factors
Concentration to ppm Response Factor
10 3.48
50 3.18
100 3.06
500 2.39
1000 1.96
5000 0.81
10000 0.56
CAS Number Formula Formula Weight Vapor Pressure in mmHg
106-98-9 C4H8 56.11 1971
Response Factors for Flame Ionization Detector Operation 14 of 50
Butyl Acetate
Response Curve
Response Factors
Concentration to ppm Response Factor
10 1.667
50 1.563
100 1.493
500 1.368
1000 1.330
5000 1.259
10000 1.190
CAS Number Formula Formula Weight Vapor Pressure in mmHg
123-86-4 C6H12O2 116.1583 10
Response Factors for Flame Ionization Detector Operation 15 of 50
Butyl Acrylate
Response Curve
Response Factors
Concentration ppm Response Factor
10 1.18
50 1.06
100 1.04
500 0.93
1000 0.90
5000 0.80
10000 0.73
CAS Number Formula Formula Weight Vapor Pressure in mmHg
141-32-2 C7H12O2 128.169 4
Response Factors for Flame Ionization Detector Operation 16 of 50
Chlorobenzene
Response Curve
Response Factors
Concentration ppm Response Factor
10 1.72
50 1.69
100 1.66
500 1.64
1000 1.60
5000 1.56
10000 1.52
CAS Number Formula Formula Weight Vapor Pressure in mmHg
108-90-7 C6H5Cl 112.5566 9
Response Factors for Flame Ionization Detector Operation 17 of 50
Chloroform
Response Curve
Response Factors
Concentration ppm Response Factor
10 10.00
50 10.87
100 11.36
500 11.90
1000 12.20
5000 12.59
10000 12.94
CAS Number Formula Formula Weight Vapor Pressure in mmHg
67-66-3 CHCl3 119.3767 160
Response Factors for Flame Ionization Detector Operation 18 of 50
Cyclohexane
Response Curve
Response Factors
Concentration ppm Response Factor
10 1.89
50 1.87
100 1.78
500 1.74
1000 1.71
5000 1.61
10000 1.43
CAS Number Formula Formula Weight Vapor Pressure in mmHg
110-82-7 C6H12 84.1595 78
Response Factors for Flame Ionization Detector Operation 19 of 50
1,1 Difluoroethylene
Response Curve
Response Factors
Concentration ppm Response Factor
10 2.10
50 2.18
100 2.14
500 2.01
1000 1.91
5000 1.42
10000 1.23
CAS Number Formula Formula Weight Vapor Pressure in mmHg
75-38-7 C2H2F2 64.03 26788
Response Factors for Flame Ionization Detector Operation 20 of 50
Dimethylformamide
Response Curve
Response Factors
Concentration ppm Response Factor
10 6.67
50 6.76
100 6.94
500 7.25
1000 7.46
5000 7.58
10000 7.75
Dimethylformamide Formula Formula Weight Vapor Pressure in mmHg
68-12-2 C3H7ON 73.0938 3
Response Factors for Flame Ionization Detector Operation 21 of 50
Ethane
Response Curve
Response Factors
Concentration ppm Response Factor
10 2.11
50 2.12
100 1.53
500 1.87
1000 1.72
5000 1.10
10000 0.36
CAS Number Formula Formula Weight Vapor Pressure in mmHg
74-84-0 C2H6 30.07 28842
Response Factors for Flame Ionization Detector Operation 22 of 50
Ethanol
Response Curve
Response Factors
Concentration to ppm Response Factor
50 3.937
100 3.891
500 3.497
1000 3.367
10000 3.124
CAS Number Formula Formula Weight Vapor Pressure in mmHg
64-17-5 C2H6O 46.0684 44
Response Factors for Flame Ionization Detector Operation 23 of 50
2-Ethoxyethanol
Response Curve
Response Factors
Concentration ppm Response Factor
10 2.94
50 2.91
100 2.85
500 2.75
1000 2.72
5000 2.49
10000 2.20
CAS Number Formula Formula Weight Vapor Pressure in mmHg
110-80-5 C2H10O2 90.121 4
Response Factors for Flame Ionization Detector Operation 24 of 50
Ethyl Acrylate
Response Curve
Response Factors
Concentration ppm Response Factor
10 12.50
50 12.20
100 11.11
500 10.96
1000 10.53
5000 10.27
10000 10.14
CAS Number Formula Formula Weight Vapor Pressure in mmHg
140-88-5 C5H8O2 100.1158 29
Response Factors for Flame Ionization Detector Operation 25 of 50
Ethylbenzene
Response Curve
Response Factors
Concentration ppm Response Factor
10 1.49
50 1.43
100 1.37
500 1.10
1000 1.01
5000 0.94
10000 0.88
CAS Number Formula Formula Weight Vapor Pressure in mmHg
108-38-3 C8H10 106.165 9
Response Factors for Flame Ionization Detector Operation 26 of 50
Ethylene
Response Curve
Response Factors
Concentration ppm Response Factor
10 2.70
50 2.63
100 2.40
500 1.59
1000 1.26
5000 0.73
10000 0.62
CAS Number Formula Formula Weight Vapor Pressure in mmHg
74-85-1 C2H4 28.0532 32065
Response Factors for Flame Ionization Detector Operation 27 of 50
Ethylene Oxide
Response Curve
Response Factors
Concentration ppm Response Factor
10 2.44
50 2.98
100 3.04
500 2.83
1000 2.73
5000 2.33
10000 2.06
CAS Number Formula Formula Weight Vapor Pressure in mmHg
75-21-8 C2H4O 44.05 1050
Response Factors for Flame Ionization Detector Operation 28 of 50
Heptane
Response Curve
Response Factors
Concentration ppm Response Factor
10 1.30
50 1.25
100 1.18
500 1.04
1000 0.94
5000 0.80
CAS Number Formula Formula Weight Vapor Pressure in mmHg
142-82-5 C7H16 100.2019 40
Response Factors for Flame Ionization Detector Operation 29 of 50
Hexane
Response Curve
Response Factors
Concentration to ppm Response Factor
100 1.695
500 1.678
1000 1.631
5000 1.335
10000 0.969
CAS Number Formula Formula Weight Vapor Pressure in mmHg
110-54-3 C6H14 86.1754 124
Response Factors for Flame Ionization Detector Operation 30 of 50
Iodomethane
Response Curve
Response Factors
Concentration ppm Response Factor
50 33.33
100 31.25
500 30.30
1000 28.57
10000 27.03
CAS Number Formula Formula Weight Vapor Pressure in mmHg
74-88-4 CH3I 141.939 400
Response Factors for Flame Ionization Detector Operation 31 of 50
Isobutylene
Response Curve
Response Factors
Concentration to ppm Response Factor
10 2.51
50 2.56
100 2.81
500 2.34
1000 1.45
5000 0.28
CAS Number Formula Formula Weight Vapor Pressure in mmHg
115-11-7 C4H8 56.11 3278
Response Factors for Flame Ionization Detector Operation 32 of 50
Methanol
Response Curve
Response Factors
Concentration ppm Response Factor
100 23.81
1000 23.15
5000 22.67
10000 22.17
CAS Number Formula Formula Weight Vapor Pressure in mmHg
67-56-1 CH4O 32.0149 96
Response Factors for Flame Ionization Detector Operation 33 of 50
Methyl Ethyl Ketone
Response Curve
Response Factors
Concentration to ppm Response Factor
10 2.985
50 2.688
100 2.630
500 2.488
1000 2.410
5000 2.150
10000 1.981
CAS Number Formula Formula Weight Vapor Pressure in mmHg
78-93-3 C4H8O 72.1057 78
Response Factors for Flame Ionization Detector Operation 34 of 50
Methyl Isobutyl Ketone
Response Curve
Response Factors
Concentration ppm Response Factor
100 1.61
500 1.59
1000 1.58
5000 1.53
CAS Number Formula Formula Weight Vapor Pressure in mmHg
108-10-1 C6H12O 100.1589 16
Response Factors for Flame Ionization Detector Operation 35 of 50
Methyl Tertiary Butyl Ether (MTBE)
Response Curve
Response Factors
Concentration ppm Response Factor
100 0.83
500 0.68
1000 0.47
5000 0.37
CAS Number Formula Formula Weight Vapor Pressure in mmHg
1634-04-4 C5H12O 88.1482 245
Response Factors for Flame Ionization Detector Operation 36 of 50
Octane
Response Curve
Response Factors
Concentration ppm Response Factor
100 1.10
500 0.97
1000 0.85
5000 0.78
CAS Number Formula Formula Weight Vapor Pressure in mmHg
111-65-9 C8H18 114.2285 10
Response Factors for Flame Ionization Detector Operation 37 of 50
n-Pentane
Response Curve
Response Factors
Concentration to ppm Response Factor
10 2.27
50 2.04
100 1.93
500 1.53
1000 1.25
5000 0.50
10000 0.41
CAS Number Formula Formula Weight Vapor Pressure in mmHg
109-66-0 C5H12 72.15 434
Response Factors for Flame Ionization Detector Operation 38 of 50
Pentanol
Response Curve
Response Factors
Concentration to ppm Response Factor
10 0.792
50 0.746
100 0.752
500 0.719
1000 0.701
5000 0.699
10000 0.594
CAS Number Formula Formula Weight Vapor Pressure in mmHg
71-41-0 C5H12O 88.1482 1.97
Response Factors for Flame Ionization Detector Operation 39 of 50
Propane
Response Curve
Response Factors
Concentration ppm Response Factor
150 2.17
750 1.71
1500 1.50
5000 1.12
10000 0.78
14000 0.69
CAS Number Formula Formula Weight Vapor Pressure in mmHg
74-98-6 C3H8 44.0956 6384
Response Factors for Flame Ionization Detector Operation 40 of 50
Propanol
Response Curve
Response Factors
Concentration to ppm Response Factor
10 1.996
50 1.992
100 1.988
500 1.894
1000 1.818
5000 1.667
10000 1.578
CAS Number Formula Formula Weight Vapor Pressure in mmHg
71-23-8 C3H8O 60.095 15
Response Factors for Flame Ionization Detector Operation 41 of 50
Propylene
Response Curve
Response Factors
Concentration ppm Response Factor
100 1.92
500 1.84
1000 1.53
5000 1.00
10000 0.85
CAS Number Formula Formula Weight Vapor Pressure in mmHg
115-07-1 C3H6 42.0797 11704
Response Factors for Flame Ionization Detector Operation 42 of 50
Styrene
Response Curve
Response Factors
Concentration to ppm Response Factor
10 1.389
50 1.275
100 1.172
500 1.163
1000 1.159
5000 1.111
10000 1.066
CAS Number Formula Formula Weight Vapor Pressure in mmHg
100-42-5 C8H8 104.1491 5
Response Factors for Flame Ionization Detector Operation 43 of 50
Tetrachloroethylene
Response Curve
Response Factors
Concentration ppm Response Factor
500 1.79
1000 1.69
2500 1.67
5000 1.65
10000 1.57
CAS Number Formula Formula Weight Vapor Pressure in mmHg
127-18-4 C2Cl4 165.8322 14
Response Factors for Flame Ionization Detector Operation 44 of 50
Tetrahydrofuran
Response Curve
Response Factors
Concentration ppm Response Factor
100 1.75
500 1.67
1000 1.46
5000 1.24
CAS Number Formula Formula Weight Vapor Pressure in mmHg
109-99-9 C4H8O 72.1057 132
Response Factors for Flame Ionization Detector Operation 45 of 50
Toluene
Response Curve
Response Factors
Concentration ppm Response Factor
50 1.12
100 0.98
500 0.95
1000 0.86
5000 0.77
10000 0.72
CAS Number Formula Formula Weight Vapor Pressure in mmHg
108-88-3 C7H8 92.1384 21
Response Factors for Flame Ionization Detector Operation 46 of 50
Trichloroethylene
Response Curve
Response Factors
Concentration ppm Response Factor
500 1.72
1000 1.60
2500 1.52
5000 1.37
10000 1.29
CAS Number Formula Formula Weight Vapor Pressure in mmHg
79-01-6 C2HCl3 131.3874 19
Response Factors for Flame Ionization Detector Operation 47 of 50
Vinyl Acetate
Response Curve
Response Factors
Concentration to ppm Response Factor
10 3.846
50 3.704
100 3.534
500 3.289
1000 3.257
5000 3.030
10000 2.577
CAS Number Formula Formula Weight Vapor Pressure in mmHg
108-05-4 C4H6O2 86.0892 83
Response Factors for Flame Ionization Detector Operation 48 of 50
Vinyl Chloride
Response Curve
Response Factors
Concentration to ppm Response Factor
10 2.63
50 2.56
100 2.57
500 2.30
1000 2.07
5000 1.18
10000 0.92
CAS Number Formula Formula Weight Vapor Pressure in mmHg
75-01-4 C2H3Cl 62.50 2600
Response Factors for Flame Ionization Detector Operation 49 of 50
Response Factors for Flame Ionization Detector Operation 50 of 50
Xylene
Response Curve
Response Factors
Concentration ppm Response Factor
100 1.37
500 1.10
1000 1.01
5000 0.94
10000 0.88
CAS Number Formula Formula Weight Vapor Pressure in mmHg
108-38-3 C8H10 106.165 9
The compound measured is m-xylene.
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