Gastec Tubes and Sampling Pump
Short terms quick measuring detector tubes 
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Gas sampling pump kit and accessories
 
 
 
Index of target gases/substances : D
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
H2NCH2CH2NH
2
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:CCl
2
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
CH2Cl
2
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
(CH3)2CHCH22CO
102L n-Hexane 0.2-1% 2 3 - 25
91L Formaldehyde 0.58-29 4 3* T
Diisopropyl benzene
C6H5NCH(CH3)22
141L Ethyl acetate 12-400 1/2 2 T -
Diisopropylamine
(CH3)2CH2NH
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 -
T:Temp Correction H:Humidity Correction *:Refrigerator Store Mesh:Correction Factor/Chart
 
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