30
OLC(T)100
Technical manual
Benzene)
Toluene
C7H8
1,20
7
5
3,1
4,00
2,95
2,15
1,90
Xylene
C8H10
1,00
7,60
25
3,7
4,00
2,90
2,15
1,90
Cells with a gray background: gases recommended for calibrating the detector
Example (first line of table)
Calibration of an "acetone" detector with a standard gas comprising 1% volume
butane
Value to be displayed:
1 %( injected butane) x 100 x 0.95 (coefficient butane/acetone) = 63 % LEL
1,5 % (LEL butane)
Note:
❧
LEL values vary according to the source.
❧
Coefficients are accurate to ± 15%.