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 : I
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)
Iodine I2 9L Nitrogen dioxide 0.2-12 2 3 - C 0.1
80 Acid gases 0.12-2.4 2 2 -
Isoamyl acetate
CH3CO2(CH2)2CH(CH3)2
148 Isoamyl acetate 10-200 2 2 T 100
Isoamyl alcohol
(CH3)2CH(CH2)2OH
117 Isoamyl alcohol 5-300 2 3 T 100
Isobutane
(CH3)3CH
103 Hydrocarbons
(LowerClass)
0.84-1.68% 1/2 2 ++ -
0.07-0.84% 1
0.035-0.07% 2
104 Butane 55-3080 1 3 -
Isobutene
(CH3)2C:CH2
101L Gasoline(Petrol) 0.07-2.2% 1 3 - -
Isobutyl acetate
CH3CO2CH2CH(CH3)2
144 Isobutyl acetate 10-300 2 2 T 150
Isobutyl acrylate
CH2:CHCO2CH2CH(CH3)2
142L Butylacetate 2.6-78 2 2 T -
Isobutyl alcohol
(CH3)2CHCH2OH
116 Isobutyl alcohol 10-150 2 3 T 50
Isoflurane(1-Chloro-2,2,2-trifluoroethyl difluoromethyl ether)
CH3CHClOCHF2
51 FluorochloroCarbons
(Pyrotec tube)
200-1000 1 3 +  
51L FluorochloroCarbons
(Pyrotec tube)
30-120 2 3 +
Isooctane
(CH3)3CCH2CH(CH3)2
101 Gasoline(Petrol) 0.027-0.54% 1 3 - -
Isopentane
(CH3)2CHCH2CH3
103 Hydrocarbons
(LowerClass)
1.08-2.16% 1/2 2 ++ -
0.09-1.08% 1
0.045-0.09% 2
Isopentyl acetate See Isoamyl acetate above
Isopentyl alcohol See Isoamyl alcohol above
Isophorone
C9H14O
154 Cyclohexanone 2-30 8 2* T C 5
Isopropyl acetate
CH3CO2CH(CH3)2
146 Isopropyl acetate 20-500 2 2 T 250
Isopropyl alcohol
CH3CH(OH)CH3(i-C3H7OH)
113 Isopropyl alcohol 2.5-5% 1/2 3 T 200
0.04-2.5% 1
0.02-0.04% 2
113L Isopropyl alcohol 50-800 1 3 T
25-50 2
Isopropyl amine
(CH3)2CHNH2
180 Amines 5.5-110 1 3 T 5
180L Amines 0.45-9 1 2 T
Isopropyl ether
m(CH3)2(CH)n2O
141L Ethyl acetate 22.5-720 2 2 T 250
161 Ethyl ether 0.018-0.45% 2 3 T
Isopropyl mercaptane
(CH3)2CHSH
70 Mercaptans 10-240 1 3 T -
Isovaleric Acid
(CH3)2CHCH2CO2H
81 Acetic acid 2-50 1 3 H -
81L Acetic acid 0.38-15 1 2* T
T:Temp Correction H:Humidity Correction *:Refrigerator Store Mesh:Correction Factor/Chart
 
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