26
Gas
Molecular
Formula
LEL
LSE
2
Vapour
density
Coef. / CH
4
Suggested
gas calibr.
Abbreviation
(French)
Ethyl Acetate
C
4
H
8
O
2
2.1%
11.5%
3.0
1.35
But/Prop
AET
Acetone
C
3
H
6
O
2,15 %
13 %
2,1
1,70
But/Prop
ACO
Acetylene
C
2
H
2
1,5 %
100 %
0,9
1,3
But/Prop
ACY
Butadiene
C
4
H
6
1.4%
16.3%
1.85
1.25
But/Prop
BUD
Butane
C
4
H
10
1,5 %
8,5 %
2,0
2,13
But/Prop
BUT
Butanone
C
4
H
8
O
1.8%
11.5%
2.5
1.75
But/Prop
BUN
Diméthyléther
C
2
H
6
O
3.0%
27.0
1.6
1.55
But/Prop
DIM
Essence SP
Mélange
1.1%
∼
6 %
3 à 4
3
But/Prop
ESS
Ethanol
C
2
H
6
O
3,3 %
19,0 %
1,6
1,50
But/Prop
ETA
Ethylene
C
2
H
4
2,7 %
34,0 %
0,98
1,30
But/Prop
ETY
G.P.L.
Prop+But
1,65
%
∼
9,0 %
1,85
1,90
But/Prop
GPL
Gasoline
Mélange
0.6%
∼
6 %
>4
5
But/Prop
GSL
Natural gas
CH
4
5,0 %
15,0 %
0,55
1,05
CH
4
GNT
Hexane
C
6
H
14
1,2 %
7,4 %
3,0
2,30
But/Prop
HEX
Hydrogen
H
2
4,0 %
75,6 %
0,069
0,89
But/Prop
H
2
Isobutane
C
4
H
10
1.5%
∼
15 %
2.0
1.6
But/Prop
ISB
Isopropanol
C
3
H
8
O
2,15 %
13,5 %
2,1
1,9
But/Prop
ISP
5,0 %
1,00
Methane
3
CH
4
4,4 %
15,0 %
15,0 %
0,55
1,14
CH
4
CH
4
Methanol
CH
3
OH
5,5 %
44,0 %
1,1
1,175
But/Prop
MTL
Methylamine
CH
3
NH
2
4.9%
20.7%
1.1
1.05
CH
4
MAM
Propylene oxide C
3
H
6
O
2.3%
?
2.0
2
But/Prop
OPR
Ethylene Oxide
C
2
H
4
O
2.6%
100%
1.5
2.1
But/Prop
ETO
Pentane
C
5
H
12
1,4 %
8,0 %
2,5
2,08
But/Prop
PNT
Propane
C
3
H
8
2,0 %
9,5 %
1,6
1,77
But/Prop
PRO
Propylene
C
3
H
6
2,0 %
11,7 %
1,5
1,2
But/Prop
PRY
Toluene
C
7
H
8
1,2 %
7,0 %
3,1
2,10
But/Prop
TOL
WSP
Xylene
C
8
H
10
1,0 %
7,6 %
3,7
2,5
But/Prop
XYL
1
Lower flammable limit
2
Upper flammable limit
3
The LEL adopted value for methane varies by country, there are two different CH
4
ranges
(LEL = 4.4% and 5.0% = LEL) to consider.
If the explosive gas that you want to detect is not in the list above, you can use the window
"other" by selecting a coefficient given by INDUSTRIAL SCIENTIFIC- (contact us).
Содержание BM25
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