Gas
or
Vapour
to
be
Measured
Chemical
Formula |
Gastec
Tube
No.
&
Name |
Measuring
Range
(ppm) |
No.of
Pump
Strokes |
Shelf
Life
(year) |
Note |
TLV-
TWA,C
(ACGIH)
(ppm) |
Carbon
dioxide
CO2 |
2HH |
Carbon
dioxide |
5-40% |
1/2 |
3 |
- |
5000 |
|
2.5-5% |
1 |
|
2H |
Carbon
dioxide |
10-20% |
1/2 |
3 |
- |
|
1-10% |
1 |
|
0.5-1% |
2 |
|
2L |
Carbon
dioxide |
3-6% |
1/2 |
3 |
- |
|
0.25-3% |
1 |
|
0.13-0.25% |
2 |
|
2LC |
Carbon
dioxide |
2000-4000 |
1/2 |
2 |
- |
|
100-2000 |
1 |
|
2LL |
Carbon
dioxide |
300-5000 |
1 |
3 |
- |
Carbon
disulphide
CS2 |
13M |
Carbon
disulphide |
1600-4000 |
1/2 |
3 |
+T |
10 |
|
50-1600 |
1 |
|
20-50 |
2 |
|
13 |
Carbon
disulphide |
50-100 |
1/2 |
3 |
+T |
|
2.5-50 |
1 |
|
1.3-2.5 |
2 |
|
0.63-1.3 |
4 |
Carbon
monoxide
CO
|
1HH |
Carbon
monoxide |
2-50% |
1/2 |
3 |
- |
25 |
|
1-2% |
1 |
|
1H |
Carbon
monoxide |
5-10% |
1/2 |
3 |
- |
|
0.2-5% |
1 |
|
0.1-0.2% |
2 |
|
1M |
Carbon
monoxide |
2-4% |
1/2 |
3 |
- |
|
0.1-2% |
1 |
|
0.05-0.1% |
2 |
|
1LM |
Carbon
monoxide |
1000-2000 |
1/2 |
3 |
- |
|
50-1000 |
1 |
|
25-50 |
2 |
|
1L |
Carbon
monoxide |
1000-2000 |
1/2 |
3 |
- |
|
25-1000 |
1 |
|
2.5-25 |
2-10 |
|
1La |
Carbon
monoxide |
500-1000 |
1/2 |
3 |
T |
|
25-500 |
1 |
|
8-25 |
2-3 |
|
1LC |
Carbon
monoxide |
1-30 |
1 |
2 |
T |
|
1LK |
Carbon
monoxide
(in
Hydrogen) |
300-600 |
1/2 |
3 |
- |
|
100-300 |
1 |
|
5-100 |
3 |
|
1LKC |
Carbon
monoxide
(in
Hydrogen
with
Hydrocarbons) |
5-100 |
3 |
3 |
+ |
|
1LL |
Carbon
monoxide |
5-50 |
2 |
3 |
- |
Carbon
tetrachloride
CCl4 |
134 |
Carbon
tetrachloride |
2.5-60 |
1 |
1* |
+ |
5 |
|
0.5-2.5 |
2-5 |
|
134L |
Carbon
tetrachloride |
5-12 |
1 |
1* |
+ |
|
0.25-5 |
2 |
Carbonyl
chloride :
Phosgene
COCl2 |
16 |
Phosgene |
5-20 |
1 |
1.5* |
T |
0.1 |
| 0.1-5 |
5 |
| 0.05-0.1 |
10 |
Carbonyl
sulphide
COS |
21 |
Carbonyl
sulphide |
100-200 |
1/2 |
2* |
+ |
- |
|
10-100 |
1 |
|
5-10 |
2 |
|
21LA |
Carbonyl
sulphide |
50-125 |
1/2 |
2* |
+T |
|
5-50 |
1 |
|
2-5 |
2 |
Chlorine
Cl2 |
8HH |
Chlorine |
0.5-10% |
1/2 |
3 |
- |
0.5 |
|
0.25-0.5% |
1 |
|
8H |
Chlorine |
500-1000 |
1/2 |
3 |
- |
|
50-500 |
1 |
|
25-50 |
2 |
|
8La |
Chlorine |
8-16 |
1/2 |
3 |
- |
|
0.5-8 |
1 |
|
0.05-0.5 |
2-5 |
|
8LL |
Chloride |
1-2 |
1/2 |
1* |
- |
|
0.05-1 |
1 |
|
0.025-0.05 |
2 |
|
80 |
Acid
gases |
0.7-14 |
2 |
2 |
- |
Chlorine
dioxide
ClO2 |
23M |
Chlorine
dioxide |
5-10 |
1/2 |
3 |
- |
0.1 |
|
0.5-5 |
1 |
|
0.1-0.5 |
2-5 |
|
23L |
Chlorine
dioxide |
0.6-1.2 |
1/2 |
1* |
- |
|
0.05-0.6 |
1 |
|
0.025-0.05 |
2 |
|
8H |
Chlorine |
25-250 |
1 |
3 |
- |
|
8LA |
Chlorine |
0.3-4.8 |
1 |
3 |
- |
Chlorobenzene
C6H5Cl |
126 |
Chlorobenzene |
200-500 |
1/2 |
3 |
- |
10 |
|
5-200 |
1 |
|
2-5 |
2 |
|
126L |
Chlorobenzene |
10-43 |
1 |
2* |
- |
|
0.5-10 |
3 |
Chlorobromomethane
CH2BrCl |
135 |
Methyl
chloroform |
22-110 |
1 |
3 |
+T |
200 |
|
136H |
Methyl
bromide |
18-270 |
1 |
3 |
+ |
|
136L |
Methyl
bromide |
11-110 |
1 |
2 |
+ |
|
136LA |
Methyl
bromide |
0.7-12.6 |
2 |
2 |
+ |
Chlorocyclohexane
C6H11Cl |
102L |
n-Hexane |
50-1200 |
2 |
3 |
- |
- |
Chlorodifluoromethane(R22)
CHClF2 |
51H |
FluorochloroCarbons
(Pyrotec
tube) |
0.8-2.4% |
1/2 |
3 |
+ |
1000 |
|
0.1-0.8% |
1 |
|
51 |
FluorochloroCarbons
(Pyrotec
tube) |
25-1000 |
1 |
3 |
+ |
|
51L |
FluorochloroCarbons
(Pyrotec
tube) |
50-135 |
1 |
3 |
+ |
|
2.5-50 |
2 |
1-Chloro-2,3-
epoxy
propane
:
Epichlorohydrin
CH2OCHCH2Cl |
163L |
Ethylene
oxide |
1.2-120 |
2 |
1* |
+T |
2 |
2-Chloroethanol
:
Ethylene
chlorohydrin
ClCH2CH2OH |
111L |
Methanol |
20-200 |
3 |
3 |
T |
C 1 |
Chloroethylene :
Vinyl chloride
CH2:CHCl |
131 |
Vinyl chloride |
1-2% |
1/2 |
3 |
- |
1 |
| 0.05-1% |
1 |
| 0.025-0.05% |
2 |
| 131La |
Vinyl chloride |
20-54 |
1/2 |
2* |
+ |
| 1-20 |
1 |
| 0.5-1 |
2 |
| 0.25-0.5 |
4 |
| 131L |
Vinyl chloride |
3-6.6 |
1 |
2* |
+T |
| 0.2-3 |
2 |
| 0.1-0.2 |
4 |
| 131LB |
Vinyl chloride |
20-70 |
1 |
3* |
T |
| 1-20 |
2 |
| 0.25-1 |
4 |
Chloroform
CHCl3 |
137 |
Chloroform |
100-400 |
3 |
3 |
+H |
10 |
|
10-100 |
5 |
|
4-10 |
7 |
|
137LA |
Chloroform |
12-30 |
1 |
1* |
+T |
|
2-12 |
2 |
|
0.5-2 |
4 |
|
137LL |
Chloroform |
0.3-4.5 |
4 |
1* |
+T |
Chloropicrin
Cl3CNO2 |
134 |
Carbon
tetrachloride |
2.5-60 |
1 |
1* |
+ |
0.1 |
m-Cresol
C6H4(CH3)OH |
61 |
o-Cresol |
1-25 |
2 |
2* |
T |
5 |
o-Cresol
C6H4(CH3)OH |
61 |
o-Cresol |
25-62.5 |
1 |
2* |
T |
5 |
|
1-25 |
2 |
|
0.4-1 |
4 |
p-Cresol
C6H4(CH3)OH |
61 |
o-Cresol |
1-25 |
2 |
2* |
T |
5 |
Cumene
C6H5CH(CH3)2 |
122L |
Toluene |
3.2-80 |
2 |
3 |
- |
50 |
Cyclohexane
C6H12 |
102H |
n-Hexane |
0.1-1.2% |
1/2 |
3 |
- |
300 |
|
0.03-0.6% |
1 |
|
0.015-0.03% |
2 |
|
102L |
n-Hexane |
60-1440 |
1 |
3 |
- |
Cyclohexanol
C6H11OH |
118 |
Cyclohexanol |
5-100 |
2 |
2 |
T |
50 |
Cyclohexanone
C6H10O |
154 |
Cyclohexanone |
30-75 |
2 |
2* |
T |
25 |
|
2-30 |
4 |
|
91L |
Formaldehyde |
10-470 |
1/2 |
3* |
T |
Cyclohexene
C6H12 |
151 |
Acetone |
0.05-0.8% |
1 |
3 |
T |
300 |
Cyclohexylamine
C6H13N |
180 |
Amines |
7-140 |
1 |
3 |
T |
10 |
|
180L |
Amines |
0.5-10 |
1 |
2 |
T |
Cymene
C10H14 |
141L |
Ethyl
acetate |
25-270 |
1/2 |
2 |
T |
- |