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 : T
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)
1,1,2,2-Tetrabromoethane
Br2CHCHBr2
135L Methyl chloroform 0.92-9.2 4 2 +T -
Tetrachlorodifluoroethane
(R112)
CCl2FCl2F
51H Fluorochlorocarbons
(Pyrotec tube)
1000-3000 1/2 3 + 500
125-1000 1
51 Fluorochlorocarbons
(Pyrotec tube)
7-280 1 3 +
51L Fluorochlorocarbons
(Pyrotec tube)
20-54 1 3 +
1-20 2
1,1,2,2-Tetrachloroethane
Cl2CHCHCl2
131L Vinyl chloride 2-30 4 2* +T 1
Tetrachloroethylene
Cl2C:CCl2
133HA Tetrachloroethylene 300-900 1/2 2* T 25
20-300 1
7-20 2
133M Tetrachloroethylene 100-250 1/2 2* T
5-100 1
2-5 2
133L Tetrachloroethylene 25-70 1/2 2* T
2-25 1
1-2 2
133LL Tetrachloroethylene 3-9 1/2 2* T
0.2-3 1
0.1-0.2 2
132HH Trichloroethylene 0.075-1.5% 1 3 T
Tetrachloromethane :
(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
Tetrahydrofuran
C4H8O
159 Tetrahydrofuran 50-800 1 3 T 200
20-50 2
161 Ethyl ether 0.056-1.4% 1 3 T
Tetrahydrothiophene
C4H8S
76H Tetrahydrothiophene 10-200 1 2 +T -
76 Tetrahydrothiophene 1-10 4 2 +T
76M Tetrahydrothiophene 10-100
mg/m3
2 2 +T
Tetramethylenediamine
H2N(CH2)4NH2
180 Amines 8.5-170 1 3 T -
180L Amines 0.8-16 1 2 +T
Thionyle chloride
SOCl2
5La Sulphur dioxide 1.44-21.6 2 3 T C1
Toluene
C6H5CH3
122 Toluene 300-690 1/2 3 - 50
10-300 1
5-10 2
122L Toluene 50-100 1 3 -
2-50 2
1-2 4
161 Ethyl ether 0.02-0.8% 1 3 T
Toluol See Toluene above
o-Toluidine
C6H4(CH3)(NH2)
181 Aniline 5-60 2 3 - 2
Trichloroacetic acid
CCl3COOH
15L Nitric acid 1-37.5 1 3 H 1
1,2,4-Trichlorobenzene
C6H3Cl3
131La Vinyl chloride 0.65-13 4 2* + C 5
1,1,1-Trichloroethane :
(Methyl chloroform)
CH3CCl
3
135 1,1,1-Trichloroethane
(Methyl chloroform)
500-2000 1/2 3 +T 350
100-500 1
135L 1,1,1-Trichloroethane
(Methyl chloroform)
200-900 1/2 2 +T
20-200 1
6-20 2
171 Acetylene 0.06-1.2% 1 3 T
1,1,2-Trichloroethane
Cl2CHCH2Cl
135 Methyl chloroform 220-750 2 3 +T 10
Trichloroethylene
Cl2C:CHCl











132HH Trichloroethylene 1-2.5% 1/2 3 T 50
0.05-1% 1
132HA Trichloroethylene 500-1300 1/2 2* T
50-500 1
20-50 2
132M Trichloroethylene 100-250 1/2 2* T
5-100 1
2-5 2
132L Trichloroethylene 25-70 1/2 2* T
2-25 1
1-2 2
132LL Trichloroethylene 4-8.8 1/2 2* T
0.25-4 1
0.125-0.25 2
Trichlorofluoromethane
(R11)
CCl3F
51H Fluorochlorocarbons
(Pyrotec tube)
2200-6600 1 3 + C 100
275-2200 2
51 Fluorochlorocarbons
(Pyrotec tube)
8-320 1 3 +
51L Fluorochlorocarbons
(Pyrotec tube)
16-43 1 3 +
0.8-16 2
Trichloromethane :
(Chloroform
CHCl
3)
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
Trichloronitromethane
(Chloropicrin Cl3CNO2)
134 Carbon tetrachloride 2.5-60 1 1* + 0.1
1,2,3-Trichloropropane
CH2ClCHClCH2Cl
135L Methyl chloroform 36-360 2 2 +T 10
1,1,2-Trichloro -
 1,2,2-trifluoroethane
(R113)
CClF2CCl2F
51H Fluorochlorocarbons
(Pyrotec tube)
2000-6000 1/2 3 + 1000
250-2000 1
51 Fluorochlorocarbons
(Pyrotec tube)
10-400 1 3 +
51L Fluorochlorocarbons
(Pyrotec tube)
20-54 1 3 +
1-20 2
Trichlorotrifluoroethane
(R113a)
CCl3CF3
51H Fluorochlorocarbons
(Pyrotec tube)
1600-4800 1/2 3 + 1000
200-1600 1
51 Fluorochlorocarbons
(Pyrotec tube)
10-400 1 3 +
51L Fluorochlorocarbons
(Pyrotec tube)
16-43 1 3 +
0.8-16 2
Triethylamine
(C2H5)3N
180 Amines 4.5-90 1 3 T 1
180L Amines 0.3-6 1 2 T
Trimethylamine
(CH3)3N
3M Ammonia 25-250 1 3   5
180 Amines 3.5-70 1 3 T
180L Amines 0.25-5 1 2 T
Trimethyl benzene
C6H3(CH3)3
123 Xylene 10-300 2 3 - 25
T:Temp Correction H:Humidity Correction *:Refrigerator Store Mesh:Correction Factor/Chart
 
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