TSI Quest EVM-7 - Page 159

149 Appendix C
PID sensor and correction factors tables
EVM Series User Manual
Gas/VOC
Formula
(used to convert
ppm measurement
to mg/m
3
)
Correction
factor
Relative
sensitivity (%)
Typical PID
(ppb)
Sodium fluoroacetate
C2H2O2FNa
NR
-
-
Styrene
C8H8
0.4
230
50
Sulphur dioxide
SO2
NR
-
-
Sulphur hexafluoride
SF6
NR
-
-
Sulphur tetrafluoride
SF4
NR
-
-
Sulphuric acid
H2SO4
NR
-
-
Sulphuryl fluoride
SO2F2
NR
-
-
Terphenyls
C18H14
0.6
167
60
Terpinolene
C10H16
0.5
210
50
Tert-butanol
C4H10O
2.6
40
260
Tetrabromoethane, 1,1,2,2-
C2H2Br4
2.0
50
200
Tetracarbonylnickel
NiC4O4
1.0
100
100
Tetrachloro-1,2-difluoroethane,
C2Cl4F2
NR
-
-
Tetrachloro-1-fluoroethane, 1,1,2,2-
C2HCl4F
NR
-
-
Tetrachloro-2,2-difluoroethane
C2Cl4F2
NR
-
-
Tetrachloro-2-fluoroethane
C2HCl4F
NR
-
-
Tetrachloroethane, 1,1,1,2-
C2H2Cl4
NR
-
-
Tetrachloroethane, 1,1,2,2-
C2H2Cl4
NR
-
-
Tetrachloroethylene
C2Cl4
0.7
140
70
Tetrachloronaphthalenes, all
isomers
C10H4Cl4
1.0
100
100
Tetraethyl orthosilicate
C8H20O4Si
2.0
50
200
Tetraethyllead
C8H20Pb
NR
-
-
Tetrafluoroethane, 1,1,1,2-
C2H2F4
NR
-
-
Tetrafluoroethane, 1,1,2,2-
C2H2F4
NR
-
-
Tetrafluoroethylene
C2F4
1.0
100
100
Tetrafluoromethane
CF4
NR
-
-
Tetrahydrofuran
C4H8O
1.6
65
150
Tetramethyl orthosilicate
C4H12O4Si
NR
-
-
Tetramethyl succinonitrile
C8H12N2
1.0
100
100
Therminol
1.0
100
100
Thionyl chloride
SOCl2
NR
-
-
Toluene
C7H8
0.5
200
50
Toluene-2,4-diisocyanate
C9H6N2O2
1.6
60
160
Toluenesulphonyl chloride, p-
C7H7SO2
Cl
3.0
33
300
Toluidine, o-
C7H9N
0.5
200
50
Tributyl phosphate
C12H27O4P
5.0
20
500
Tributylamine
C12H27N
1.0
100
100
Trichloro-1,1-
difluoroethane, 1,2,2-
C2HCl3F2
NR
-
-
Trichloro-1,2-difluoroethane, 1,1,2-
C2HCl3F2
NR
-
-
Trichloro-2,2-difluoroethane, 1,1,1-
C2HCl3F2
NR
-
-
Trichloro-2-fluoroethane, 1,1,2-
C2H2Cl3F
NR
-
-
Trichlorobenzene 1,2,4-
C6H3Cl3
0.6
180
50
Trichloroethane, 1,1,1-
C2H3Cl3
NR
-
-
Trichloroethane, 1,1,2-
C2H3Cl3
NR
-
-
Trichloroethylene
C2HCl3
0.7
150
65