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) |
n-Decane
CH3(CH2)8CH3 |
105 |
Hydrocarbons
(HigherClass) |
400-6000 |
1 |
3 |
- |
- |
|
200-400 |
2 |
Diacetone
alcohol
(CH3)2C(OH)CH2COCH3 |
154 |
Cyclohexanone |
2.5-100 |
2 |
2* |
T |
50 |
Diacetyl
CH3COCOCH3 |
92 |
Acetaldehyde |
25-1500 |
3 |
2* |
T |
- |
1,2-Diaminoethane
:
Ethylenediamine
H2NCH2CH2NH2 |
180 |
Amines |
14-280 |
1 |
3 |
T |
10 |
|
180L |
Amines |
0.9-18 |
1 |
2 |
T |
Diborane
B2H6 |
22 |
Diborane |
2-5 |
1 |
2 |
T |
0.1 |
|
0.05-2 |
2 |
|
0.02-0.05 |
5 |
1,1-Dibromoethane
CH3CHBr2 |
136L |
Methyl
bromide |
7-70 |
1 |
2 |
+ |
- |
1,2-Dibromoethane
:
Ethylene
dibromide
BrCH2CH2Br |
136H |
Methyl
bromide |
14-210 |
1 |
3 |
+ |
2 |
|
136L |
Methyl
bromide |
8-80 |
1 |
2 |
+ |
Dibromomethane
CH2Br2 |
136L |
Methyl
bromide |
5-50 |
1 |
2 |
+ |
- |
Di-n-butylamine
(CH3CH2CH2CH2)2NH |
180 |
Amines |
5-100 |
1 |
3 |
T |
- |
|
180L |
Amines |
0.4-8 |
1 |
2 |
T |
m-Dichlorobenzene
C6H4Cl2 |
127 |
o-Dichlorobenzene |
2.5-300 |
2 |
3 |
T |
- |
o-Dichlorobenzene
C6H4Cl2 |
127 |
o-Dichlorobenzene |
2.5-300 |
2 |
3 |
T |
25 |
p-Dichlorobenzene
C6H4Cl2 |
127 |
o-Dichlorobenzene |
2.5-300 |
2 |
3 |
T |
10 |
Dichlorodifluoromethane
(R12)
CCl2F2 |
51H |
Fluorochlorocarbons
(Pyrotectube) |
2600-7800 |
1/2 |
3 |
+ |
1000 |
|
325-2600 |
2 |
|
51 |
Fluorochlorocarbons
(Pyrotectube) |
11-440 |
1 |
3 |
+ |
|
51L |
Fluorochlorocarbons
(Pyrotectube) |
36-97 |
1 |
3 |
+ |
|
1.8-36 |
2 |
1,1-Dichloroethane
CH3CHCl2 |
135 |
1,1,1-Trichloroetane |
9-450 |
1 |
3 |
+T |
100 |
1,2-Dichloroethane
:
Ethylene
dichloride
ClCH2CH2Cl |
135 |
Methyl
chloroform |
400-2000 |
1 |
3 |
+T |
10 |
|
135L |
Methyl
chloroform |
104-1040 |
1 |
2 |
+T |
1,1-Dichloroethylene :
Vinylidene chloride
CH2:CCl2 |
130L |
Vinylidene chloride |
14-40.6 |
1/2 |
2* |
+ |
5 |
| 1-14 |
1 |
| 0.4-1 |
2 |
1,2-Dichloroethylene
ClCH:CHCl |
139 |
1,2-Dichloroethylene |
100-250 |
1/2 |
2* |
T |
200 |
|
10-100 |
1 |
|
5-10 |
2 |
|
132HA |
Trichloroethylene |
80-800 |
1 |
2* |
T |
|
132LL |
Trichloroethylene |
0.4-6 |
1 |
2* |
- |
1,1-Dichloro-1-fluoroethane
(R141b)
CH3CCl2F |
51 |
Fluorochlorocarbons
(Pyrotectube) |
400-1000 |
1/2 |
3 |
+ |
- |
|
10-400 |
1 |
|
51L |
Fluorochlorocarbons
(Pyrotectube) |
1.1-22 |
2 |
3 |
+ |
Dichloromethane :
Methylene chloride
CH2Cl2 |
138 |
Methylene chloride |
50-500 |
1 |
3 |
+T |
50 |
| 25-50 |
2 |
| 138L |
Methylene chloride |
60-150 |
1 |
2 |
+T |
| 10-60 |
2 |
| 4-10 |
4 |
| 51L |
Fluorochlorocarbons
(Pyrotectube) |
1-20 |
2 |
3 |
+ |
Dichloropentafluoropropane
(R225) |
51 |
Fluorochlorocarbons
(Pyrotectube) |
20-800 |
1 |
3 |
+ |
|
|
51L |
Fluorochlorocarbons
(Pyrotectube) |
1.4-28 |
2 |
3 |
+ |
1,2-Dichloropropane :
Propylene dichloride
CH3CHClCH2Cl |
131La |
Vinyl chloride |
40-800 |
2 |
2* |
+ |
10 |
1,3-Dichloropropene
ClCH2CH:CHCl |
132HA |
Trichloroethylene |
45-450 |
2 |
2* |
T |
1 |
|
131La |
Vinyl
chloride |
0.5-10 |
2 |
2* |
+ |
1,2-Dichloro-1,1,1-tetrafluoroethane
(R114)
CClF2CClF2 |
51H |
Fluorochlorocarbons
(Pyrotectube) |
3800-11400 |
1/2 |
3 |
+ |
1000 |
|
475-3800 |
1 |
|
51 |
Fluorochlorocarbons
(Pyrotectube) |
20-800 |
1 |
3 |
+ |
|
51L |
Fluorochlorocarbons
(Pyrotectube) |
36-97 |
1 |
3 |
+ |
|
1.8-36 |
2 |
2,2-Dichloro-1,1,1trifluoroethane
(R123)
CHCl2CF3
|
51 |
Fluorochlorocarbons
(Pyrotectube) |
560-1600 |
1/2 |
3 |
+ |
- |
|
14-560 |
1 |
|
51L |
Fluorochlorocarbons
(Pyrotectube) |
1.4-28 |
2 |
3 |
+ |
Diethylamine
(C2H5)2NH |
180 |
Amines |
5.5-110 |
1 |
3 |
T |
5 |
|
180L |
Amines |
0.45-9 |
1 |
2 |
T |
Diethylaminoethanol
(C2H5)NCH2CH2OH |
180L |
Amines |
0.6-12 |
1 |
2 |
T |
2 |
Diethylbenzene
C6H4(C2H5)2 |
122L |
Toluene |
2-150 |
4 |
3 |
- |
- |
Diethylenetriamine
H2NCH2CH2NHCH2CH2NH2 |
180L |
Amines |
0.95-19 |
1 |
2 |
T |
1 |
Diethylethanolamine
(C2H5)2NC2H4OH |
180 |
Amines |
6-120 |
1 |
3 |
T |
|
Diethylether
:
Ethyl
ether
(C2H5)2O |
161 |
Ethyl
ether |
0.04-1% |
1 |
3 |
T |
400 |
|
161L |
Ethyl
ether |
400-1200 |
1 |
2 |
T |
|
10-400 |
2 |
Diisobutylene
(CH3)3CCH:C(CH3)2 |
121 |
Benzene |
45-540 |
1 |
3 |
- |
- |
Diisobutylketone
¡Î(CH3)2CHCH2¡Ï2CO |
102L |
n-Hexane |
0.2-1% |
2 |
3 |
- |
25 |
|
91L |
Formaldehyde |
0.58-29 |
4 |
3* |
T |
Diisopropyl
benzene
C6H5N¡ÎCH(CH3)2¡Ï2 |
141L |
Ethyl
acetate |
12-400 |
1/2 |
2 |
T |
- |
Diisopropylamine
¡Î(CH3)2CH¡Ï2NH |
180 |
Amines |
5-100 |
1 |
3 |
T |
5 |
|
180L |
Amines |
0.3-6 |
1 |
2 |
T |
N,N-Dimethyl
acetamide
CH3CON(CH3)2 |
184 |
N,N-Dimethyl
acetamide |
60-240 |
1 |
3 |
T |
10 |
|
5-60 |
2 |
|
1.5-5 |
4 |
Dimethylamine
(CH3)2NH |
3H |
Ammonia |
1.2-19.2% |
1 |
3 |
- |
5 |
|
180 |
Amines |
5.5-110 |
1 |
3 |
T |
|
180L |
Amines |
0.45-9 |
1 |
2 |
T |
2-Dimethylaminoethanol
(CH3)2NCH2CH2OH |
180L |
Amines |
0.65-13 |
1 |
2 |
T |
- |
Dimethylaminopropylamine
(CH3)2NCH2CH2CH2NH2 |
180 |
Amines |
8-160 |
1 |
3 |
T |
- |
|
180L |
Amines |
0.6-12 |
1 |
2 |
N,N-Dimethylaniline
C6H3(CH3)2(NH2) |
181 |
Aniline |
2.5-30 |
3 |
3 |
- |
5 |
Dimethylbenzene :
Xylene
C6H4(CH3)2 |
123 |
Xylene |
250-500 |
1/2 |
3 |
- |
100 |
| 10-250 |
1 |
| 5-10 |
2 |
| 123L |
Xylene |
100-200 |
1 |
3 |
- |
| 2-100 |
2 |
| 100A |
LPG |
0.1-1.2% |
2 |
3 |
- |
| 122L |
Toluene |
100-200 |
1 |
3 |
- |
| 4-100 |
2 |
| 2-4 |
4 |
Dimethyl
disulphide
(CH3)2S2 |
53 |
Dimethyl
sulphide
(Pyrotec
tube) |
0.3-6 |
3 |
2 |
+ |
- |
N,N-Dimethylethylamine
C2H5N(CH3)2 |
180 |
Amines |
4-80 |
1 |
3 |
T |
- |
|
180L |
Amines |
0.3-6 |
1 |
2 |
T |
N,N-Dimethyl
formamide
HCON(CH3)2 |
183 |
N,N-Dimethyl
formamide |
30-90 |
1/2 |
3 |
T |
10 |
|
2-30 |
1 |
|
0.8-2 |
2 |
|
2,6-Dimethyl-4-heptanone |
See
Diisobutyl
ketone
above |
Dimethylhydrazine
NH2N(CH3)2 |
185 |
Hydrazine |
0.1-2 |
5 |
3 |
H |
0.5 |
Dimethylsulphide
(CH3)2S |
53 |
Dimethyl
sulphide
(Pyrotectube) |
0.5-10 |
3 |
2 |
+ |
- |
|
0.25-0.5 |
5 |
|
77 |
TBM
and
DMS |
1-15
mg/L |
1 |
2* |
+T |
1,4-Dioxane
C4H8O2 |
159 |
Tetrahydrofuran |
25-140 |
1 |
3 |
T |
25 |
|
163 |
Ethyleneoxide |
0.1-6% |
1 |
3 |
- |
Dipropylamine
(CH3CH2CH2)2NH |
180 |
Amines |
4-80 |
1 |
3 |
T |
- |
|
180L |
Amines |
0.35-7 |
1 |
2 |
T |
Divinyl
benzene
C6H4(CH:CH2)2 |
124L |
Styrene |
1-15 |
3 |
3 |
- |
10 |
Divinyl
methoxysilane
(CH2:CH2)2CH3OSi |
113L |
Isopropyl
alcohol |
2.5-40 |
2 |
3 |
T |
- |