The Gastec Corporation of Japan has been manufacturing gas detector tubes, pumps and accessories for more than 30 years. Gastec manufacturers more than 250 gas detector tubes, measuring the presence of over 500 hundred gases.
Gastec detector tubes are manufactured in ISO-9001 certified facilities in Japan, and are sold worldwide through a network of distributors. No other manufacturer has more detector tubes certified by the Safety Equipment Institute (SEI), a private, non-profit organization established in 1981 to administer the first non-governmental, third party certification program to test and certify a broad range of safety products.



Gastec Standard Detector Tube System Structure
Model GV-100 Gas Sampling Pump

Gastec Standard Detector Tube System Structure
Gastec standard detector tubes are thin glass tubes with calibration scales printed by which you can directly read concentrations of the substances (gases and vapors) to be measured. Each tube contains detecting reagent (s) that are especially sensitive to the target substance and quickly produces a distinct layer of color change. The tubes are hermetically sealed. To use, break off both ends and connect the tube to the Model GV-100 Gas Sampling Pump with the directional arrow pointing toward the pump. Some detector tubes are used as twin tubes by being connected with their pretreatment tubes, which filter unwanted gases from the sensitive detecting reagents in the detector tube. To assure a high precision indication, Gastec's detector tubes have tightly controlled inner diameters and sensitive detecting reagents with long-term stability (many have 3-yar shelf life) which are manufactured in an ISO 9001 facility. All detector tubes undergo stringent quality control. Individual production lots are tested and calibrated independently of each other to ensure the highest calibration accuracy for each lot. Each box of detector tubes has its quality control number printed on it.


Model GV-100 Gas Sampling Pump

The Model GV-100 Gas Sampling Pump can precisely collect a sample volume for a detector tube. The full-stroke (100 ml) and the half stroke (50 ml) positions are marked exactly by the red line on the pump shaft, and the handle is precisely locked at those positions. If you pump fully n times by allowing for sampling time intervals, a volume of 100 ml x n can be sampled. Each detector tube is calibrated based upon a prescribed (standard) volume of sample. Also, the pump piston has been designed with a smaller diameter so that the handle can be pulled out with even less effort. Gastec piston sampling pump design proves you with advanced non sparking design and superior features. It is a convenient handy size easily carried, it weighs a mere 230 g.



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Standard Tubes
Find a tube by Gas or Vapor:
How to read data sheet/chart
Definition of Specification Terms
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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Gas or Vapour
to be Measured
Chemical Formula		 Gastec Tube
No. & Name		 Measuring
Range
(ppm)		 No.of
Pump
Strokes		 Shelf Life
(year)
(R=Refrigerated)		 Note TLV-
TWA,C
(ACGIH)
(ppm)
Acetaldehyde
CH3CHO		 92 Acetaldehyde 300-750 1 2R Temp Correction C 25
10-300 2
5-10 4
92M Acetaldehyde 5-100 1 2R -
2.5-5 2
Acetic acid
CH3CO2Humidity Correction 		81 Acetic acid 50-100 1/2 3 Humidity Correction 10
2-50 1
1-2 2
81L Acetic acid 10-25 1/2 2R Temp Correction
0.25-10 1
0.125-0.25 2
80 Acid gases 40-80 1 2 -
2-40 2
1-2 4
Acetic anhydride
(CH3CO)2O		 81 Acetic acid 0.6-15 1 3 Humidity Correction 5
Acetone
CH3COCH3		 151 Acetone 0.8-2% 1 3 Temp Correction 500
0.05-0.8% 2
151L Acetone 4000-12000 1 2R Temp Correction
50-4000 2
Acetone cyanohydrin
(CH3)2C(OH)(CN)		 12L Hydrogen cyanide 2.88-69 1 2 Humidity Correction C 4.7
Acetonitrile
CH3CN		 52 Nitroparaffin
(Pyrotectube)		 3-180 1 3 - 40
Acetylene
HCßCH		 171 Acetylene 2-4% 1/2 3 Temp Correction -
0.1-2% 1
0.05-0.1% 2
103 Hydrocarbons
(LowerClass)		 1.8-3.6% 1/2 2 Nine Tubes
0.15-1.8% 1
0.075-0.15% 2
172 Ethylene 32.5-1040 1 3 -
Acetylene dichloride See 1,2-Dichloroethylene
Acid gases 80 Acid gases 40-80 1 2 - -
2-40 2
1-2 4
Acrolein
CH2:CHCHO		 93 Acrolein 10-800 2 2R Temp Correction C 0.1
3.3-10 4
Acrylicacid
CH2:CHCO2Humidity Correction 		81 Acetic acid 2-50 1 3 Humidity Correction 2
Acrylonitrile
CH2:CHCN		 191 Acrylonitrile 120-360 1 3 Twin Tubes, Temp Correction 2
5-120 2
2-5 4
191L Acrylonitrile 6-18 1 3 Twin Tubes
0.2-6 2
0.1-0.2 4
102L n-Hexane 0.06-1.44% 1 3 -
Allyl Isothiocyanate
CH2:CHCH2NCS		 149 Methyl metacrylate 5-200 2 2 Temp Correction -
Allyl chloride
CH2:CHCH2Cl		 101L Gasoline(Petrol) 0.1-3.4% 1/2 3 - 1
131L Vinyl chloride 3.2-48 2 2R Twin Tubes, Temp Correction
Amines
RENH2 calibration		 180 Amines 1-280 1 3 Temp Correction -
Amines
CH3NH2 calibration		 180L Amines 0.25-39 1 2 Temp Correction -
2-Aminoethanol See Ethanolamine
Ammonia
NH3












 3H Ammonia 16-32% 1/2 3 - 25
1-16% 1
0.2-1% 2-5
3HM Ammonia 1.6-3.52% 1/2 3 -
0.05-1.6% 1
3M Ammonia 500-1000 1/2 3 -
50-500 1
10-50 2-5
3La Ammonia 100-200 1/2 3 Temp Correction
5-100 1
2.5-5 2
3L Ammonia 30-78 1/2 3 -
1-30 1
0.5-1 2
180 Amines 1.5-30 1 3 Temp Correction
n-Amyl acetate
CH3CO2(CH2)4CH3		 147 n-Amyl acetate 10-200 2 2 Temp Correction 100
Aniline
C6Humidity Correction 5NH2		 181 Aniline 30-60 2 3 - 2
2.5-30 3
1.25-2.5 5
Arsine
AsH3		 19LA Arsine 2.4-10 1 2 - -
1.5-2.4 3
0.1-1.5 5
0.04-0.1 10
Benzaldehyde
C6Humidity Correction 5CHO		 91L Formaldehyde 4-92 1 3R Temp Correction -
Benzene
C6Humidity Correction 6		 121 Benzene 60-120 1 3 - 0.5
5-60 2
2.5-5 4
121L Benzene 12-60 1 3 Twin Tubes
0.25-12 5
0.125-0.25 10
121S Benzene 120-312 1 3 Twin Tubes
5-120 2
2-5 4
121SL Benzene 20-100 1 3 Twin Tubes
1-20 5
121SP Benzene 0.5-10 3 2 Twin Tubes
171 Acetylene 0.03-0.6% 4 3 Temp Correction
Benzyl bromide
C6Humidity Correction 5CH2Br		 136L Methyl bromide 25-850 1 2 Twin Tubes -
Benzyl chloride
C6Humidity Correction 5CH2Cl		 132L Trichloroethylene 0.8-20 2 2R Temp Correction 1
Boron trichloride
BCl3		 12L Hydrogen cyanide 0.5-20 2 2 Humidity Correction -
Bromine
Br2		 8La Chlorine 0.05-0.8 4 3 - 0.1
Bromochloromethane See Chlorobromomethane
Bromoform
CH3(CH2)2CH3		 136L Methyl bromide 1-50 1 2 Twin Tubes 0.5
0.5-18 2
1,3-Butadiene
CH2:CHCH:CH2		 174 1,3-Butadiene 50-800 1 3 Temp Correction 2
174L 1,3-Butadiene 5-100 4 3 Temp Correction
2.5-5 8
174LL 1,3-Butadiene 0.5-5 1 3R -
Butane
CH3(CH2)2CH3		 104 Butane 25-1400 1 3 - 800
103 Hydrocarbons
(Lower Class)		 0.84-1.68% 1/2 2R Nine Tubes
0.07-0.84% 1
0.035-0.07% 2
n-Butanol
CH3CH2CH2CH2OH		 114 n-Butanol 10-150 3 3 Temp Correction C 50
sec-Butanol
CH3CH2CH(OH)CH3		 115 sec-Butanol 5-150 3 3 Temp Correction 100
2-Butanone See Methyl ethyl ketone(MEK)
Butyl acetate
CH3CO2(CH2)3CH3		 142 Butyl acetate 0.05-0.8% 2 3 Temp Correction 150
142L Butyl acetate 10-300 2 2 Temp Correction -
tert-Butanol
(CH3)3COH		 102L n-Hexane 0.05-1.2% 2 3 - 100
Butylamine
CH3(CH2)3NH2		 180 Amines 5-100 1 3 Temp Correction C 5
180L Amines 0.4-8 1 2 Temp Correction
Butyl mercaptan
CH3(CH2)3SH		 70L Mercaptans 6.4-12.8 1/2 2 - 0.5
0.8-6.4 1
0.32-0.8 2
0.16-0.8 4
tert-Butyl mercaptan
(CH3)3CSH		 75 tert-Butyl mercaptan 60-150mg/m3 1/2 2 Temp Correction -
30-60mg/m3 1
2.5-30mg/m3 2
75L tert-Butyl mercaptan 15-30mg/m3 1/2 2R Temp Correction
1-15mg/m3 1
0.5-1mg/m3 2
77 TBM&DMS 1-15mg/l 1 2R Twin Tubes, Temp Correction
70L Mercaptans 4-8 1/2 2 -
0.5-4 1
0.2-0.5 2
0.1-0.5 4
Butyric acid
CH3CH2CH2CO2Humidity Correction 		81L Acetic acid 0.325-13 1 2R Temp Correction -
Butyronitrile
CH3CH2CH2CN		 191L Acrylonitrile 15-360 1 3 Twin Tubes -
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 Twin Tubes, Temp Correction 10
50-1600 1
20-50 2
13 Carbon disulphide 50-100 1/2 3 Twin Tubes, Temp Correction
2.5-50 1
1.3-2.5 2
0.63-1.3 4
Carbon monoxide
CO





















 1HH Carbon monoxide 2-40% 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 Temp Correction
25-500 1
8-25 2-3
1LC Carbon monoxide 1-30 1 2 Temp Correction
1LK Carbon monoxide
(in Hydrogen)		 300-600 1/2 3 -
100-300 1
5-100 3
1LL Carbon monoxide 5-50 2 3 -
Carbon tetrachloride
CCl4		 134 Carbon tetrachloride 2.5-60 1 1R Twin Tubes 5
0.5-2.5 2-5
134L Carbon tetrachloride 5-12 1 1R Twin Tubes
0.25-5 2
Carbonyl chloride See Phosgene
Carbonyl sulphide
COS		 21 Carbonyl sulphide 100-200 1/2 2R Twin Tubes -
10-100 1
5-10 2
21LA Carbonyl sulphide 50-125 1/2 2R Twin Tubes, Temp Correction
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 1R -
0.05-1 1
0.025-0.05 2
80 Acid gases 14-28 1 2 -
0.7-14 2
0.35-0.7 4
Chlorine dioxide
ClO2		 8H Chlorine 25-250 1 3 - 0.1
8La Chlorine 0.3-4.8 1 3
Chlorobenzene
C6Humidity Correction 5Cl		 126 Chlorobenzene 200-500 1/2 3 - 10
5-200 1
2-5 2
126L Chlorobenzene 10-43 1 2R -
0.5-10 3
Chlorobromomethane
CH2BrCl		 135 Methyl chloroform 22-110 1 3 Twin Tubes, Temp Correction 200
Chlorocyclohexane
C6Humidity Correction 11Cl		 102L n-Hexane 50-1200 2 3 - -
Chlorodifluoromethane(R22)
CHClF2		 51H FluorochloroCarbons
(Pyrotectube)		 0.8-2.4% 1/2 3 Twin Tubes 1000
0.1-0.8% 1
51 FluorochloroCarbons
(Pyrotectube)		 25-1000 1 3 Twin Tubes
51L FluorochloroCarbons
(Pyrotectube)		 50-135 1 3 Twin Tubes
2.5-50 2
1-Chloro-2,3-
epoxy propane		 See Epichlorohydrin
2-Chloroethanol See Ethylene chlorohydrin
Chloroethylene See Vinyl chloride
Chloroform
CHCl3		 137 Chloroform 100-400 3 3 +Humidity Correction 10
10-100 5
4-10 7
137L Chloroform 10-27 3 1R Twin Tubes, Temp Correction
0.5-10 5
Chloropicrin
Cl3CNO2		 134 Carbon tetrachloride 2.5-60 1 1R Twin Tubes 0.1
m-Cresol
C6Humidity Correction 4(CH3)OH		 61 o-Cresol 1-25 2 2R Temp Correction 5
o-Cresol
C6Humidity Correction 4(CH3)OH		 61 o-Cresol 25-62.5 1 2R Temp Correction 5
1-25 2
0.4-1 4
p-Cresol
C6Humidity Correction 4(CH3)OH		 61 o-Cresol 1-25 2 2R Temp Correction 5
Cumene
C6Humidity Correction 5CH(CH3)2		 122L Toluene 3.2-80 2 3 - 50
Cyclohexane
C6Humidity Correction 12		 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
C6Humidity Correction 11OH		 118 Cyclohexanol 5-100 2 2 Temp Correction 50
Cyclohexanone
C6Humidity Correction 10O		 154 Cyclohexanone 30-75 2 2R Temp Correction 25
2-30 4
91L Formaldehyde 10-470 1/2 3R Temp Correction
Cyclohexene
C6Humidity Correction 12		 151 Acetone 0.01-0.8% 1 3 Temp Correction 300
Cyclohexylamine
C6Humidity Correction 13N		 180 Amines 7-140 1 3 Temp Correction 10
180L Amines 0.5-10 1 2 Temp Correction
Cymene
C10Humidity Correction 14		 141L Ethyl acetate 25-270 1/2 2 Temp Correction -
n-Decane
CH3(CH2)8CH3		 105 HydroCarbons
(HigherClass)		 400-6000 1 3 - -
200-400 2
Diacetyl
CH3COCOCH3		 92 Acetaldehyde 25-1500 3 2R Temp Correction -
1,2-Diaminoethane See Ethylenediamine
Diborane
B2Humidity Correction 6		 22 Diborane 2-5 1 2 Temp Correction 0.1
0.05-2 2
0.02-0.05 5
1,1-Dibromoethane
CH3CHBr2		 136L Methyl bromide 7-70 1 2 Twin Tubes -
1,2-Dibromoethane See Ethylene dibromide
Dibromomethane
CH2Br2		 136L Methyl bromide 5-50 1 2 Twin Tubes -
Di-n-butylamine
(CH3CH2CH2CH2)2NH		 180L Amines 0.4-8 1 2 Temp Correction -
Dichlorvos
C4Humidity Correction 7Cl2O4P		 132LL Trichloroethylene 0.2-3.2 1 2R Temp Correction 0.9
mg/m3
0.1-1.6 2
0.05-0.8 4
m-Dichlorobenzene
C6Humidity Correction 4Cl2		 127 o-Dichlorobenzene 2.5-300 2 3 Temp Correction -
o-Dichlorobenzene
C6Humidity Correction 4Cl2		 127 o-Dichlorobenzene 2.5-300 2 3 Temp Correction 25
p-Dichlorobenzene
C6Humidity Correction 4Cl2		 127 o-Dichlorobenzene 2.5-300 2 3 Temp Correction 10
Dichlorodifluoromethane
(R12)
CCl2F2		 51H Fluorochlorocarbons
(Pyrotectube)		 2600-7800 1/2 3 Twin Tubes 1000
325-2600 2
51 Fluorochlorocarbons
(Pyrotectube)		 11-440 1 3 Twin Tubes
51L Fluorochlorocarbons
(Pyrotectube)		 36-97 1 3 Twin Tubes
1.8-36 2
1,1-Dichloroethane
CH3CHCl2		 135 Methylchloroform 40-200 4 3 Twin Tubes, Temp Correction 100
1,2-Dichloroethane SeeEthylene dichloride
1,1-Dichloroethylene SeeVinylidene chloride
1,2-Dichloroethylene
ClCH:CHCl		 139 1,2-Dichloroethylene 100-250 1/2 2R Temp Correction 200
10-100 1
5-10 2
132HA Trichloroethylene 80-800 1 2R Temp Correction
132LL Trichloroethylene 0.4-6 1 2R -
1,1-Dichloro-1-fluoroethane
(R141b)
CH3CCl2F		 51 Fluorochlorocarbons
(Pyrotectube)		 400-1000 1/2 3 Twin Tubes -
10-400 1
51L Fluorochlorocarbons
(Pyrotectube)		 1.1-22 2 3 Twin Tubes
Dichloromethane See Methylene chloride
1,2-Dichloropropane See Propylene dichloride
1,3-Dichloropropene
ClCH2CH:CHCl		 132HA Trichloroethylene 45-450 2 2R Temp Correction 1
131La Vinyl chloride 0.5-10 2 2R Twin Tubes
1,2-Dichloro-1,1,1-tetrafluoroethane
(R114)
CClF2CClF2		 51H Fluorochlorocarbons
(Pyrotectube)		 3800-11400 1/2 3 Twin Tubes 1000
475-3800 1
51 Fluorochlorocarbons
(Pyrotectube)		 20-800 1 3 Twin Tubes
51L Fluorochlorocarbons
(Pyrotectube)		 36-97 1 3 Twin Tubes
1.8-36 2
2,2-Dichloro-1,1,1trifluoroethane
(R123)
CHCl2CF3
 51 Fluorochlorocarbons
(Pyrotectube)		 560-1600 1/2 3 Twin Tubes -
14-560 1
51L Fluorochlorocarbons
(Pyrotectube)		 1.4-28 2 3 Twin Tubes
Diethylamine
(C2Humidity Correction 5)2NH		 180 Amines 5.5-110 1 3 Temp Correction 5
180L Amines 0.45-9 1 2 Temp Correction
Diethylaminoethanol
(C2Humidity Correction 5)NCH2CH2OH		 180L Amines 0.6-12 1 2 Temp Correction 2
Diethylbenzene
C6Humidity Correction 4(C2Humidity Correction 5)2		 122L Toluene 2-150 4 3 - -
Diethylenetriamine
Humidity Correction 2NCH2CH2NHCH2CH2NH2		 180L Amines 0.95-19 1 2 Temp Correction 1
Diethylether See Ethyl ether
Diisobutylene
(CH3)3CCH:C(CH3)2		 121 Benzene 45-540 1 3 - -
Diisobutylketone
m(CH3)2CHCH2n2CO		 102L n-Hexane 0.2-1% 2 3 - 25
91L Formaldehyde 0.58-29 4 3R Temp Correction
Diisopropyl benzene
C6Humidity Correction 5NmCH(CH3)2n2		 141L Ethyl acetate 12-400 1/2 2 Temp Correction -
Diisopropyl toluene
C6Humidity Correction 4(CH3)N
mCH(CH3)2n2		 141L Ethyl acetate 12-400 1/2 2 Temp Correction -
Diisopropylamine
m(CH3)2CHn2NH		 180 Amines 5-100 1 3 Temp Correction 5
180L Amines 0.3-6 1 2 Temp Correction
N,N-Dimethyl acetamide
CH3CON(CH3)2		 184 N,N-Dimethyl acetamide 60-240 1 3 Temp Correction 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 Temp Correction
180L Amines 0.45-9 1 2 Temp Correction
2-Dimethylaminoethanol
(CH3)2NCH2CH2OH		 180L Amines 0.65-13 1 2 Temp Correction -
Dimethylaminopropylamine
(CH3)2NCH2CH2CH2NH2		 180 Amines 8-160 1 3 Temp Correction -
180L Amines 0.6-12 1 2
N,N-Dimethylaniline
C6Humidity Correction 3(CH3)2(NH2)		 181 Aniline 2.5-30 3 3 - 5
Dimethylbenzene See Xylene
Dimethyl disulphide
(CH3)2S2		 53 Dimethyl sulphide
(Pyrotec tube)		 0.16-6 3 3 Twin Tubes -
N,N-Dimethylethylamine
C2Humidity Correction 5N(CH3)2		 180 Amines 4-80 1 3 Temp Correction -
180L Amines 0.3-6 1 2 Temp Correction
N,N-Dimethyl formamide
HCON(CH3)2		 183 N,N-Dimethyl formamide 30-90 1/2 3 Temp Correction 10
2-30 1
0.8-2 2
2,6-Dimethyl-4-heptanone See Diisobutyl ketone
Dimethylhydrazine
NH2N(CH3)2		 185 Hydrazine 0.1-2 5 3 Humidity Correction 0.5
Dimethylsulphide
(CH3)2S		 53 Dimethyl sulphide
(Pyrotectube)		 0.5-10 3 2 Twin Tubes -
0.25-0.5 5
77 TBM and DMS 1-15mg/l 1 2R Twin Tubes, Temp Correction
1,4-Dioxane
C4Humidity Correction 8O2		 159 Tetrahydrofuran 25-140 1 3 Temp Correction 25
163 Ethyleneoxide 0.1-6% 1 3 -
Dipropylamine
(CH3CH2CH2)2NH		 180 Amines 4-80 1 3 Temp Correction -
180L Amines 0.35-7 1 2 Temp Correction
Divinyl benzene
C6Humidity Correction 4(CH:CH2)2		 124L Styrene 1-15 3 3 - 10
Divinyl methoxysilane
(CH2:CH2)2CH3OSi		 113L Isopropyl alcohol 2.5-40 2 3 Temp Correction -
1,2-Epoxypropane See Propylene oxide
Ethanethiol See Ethyl mercaptan
Ethanol
C2Humidity Correction 5OH		 112 Ethanol 2.5-7.5% 1/2 3 Temp Correction 1000
0.05-2.5% 1
0.01-0.05% 2
112L Ethanol 100-2000 1 3 Temp Correction
50-100 2
Ethyl alcohol See Ethanol
Ethanolamine
Humidity Correction 2NCH2CH2OH		 180L Amines 1.95-39 1 2 Temp Correction 3
Ethyl acetate
CH3CO2C2Humidity Correction 5		 141 Ethyl acetate 0.1-1.5% 1 3 Temp Correction 400
141L Ethyl acetate 25-800 2 2 Temp Correction
Ethyl acrylate
CH2:CHCO2C2Humidity Correction 5		 141L Ethyl acetate 10-160 3 2 Temp Correction 5
Ethylamine
C2Humidity Correction 5NH2		 180 Amines 5-100 1 3 Temp Correction 5
180L Amines 0.45-9 1 2 Temp Correction
Ethyl benzene
C6Humidity Correction 5C2Humidity Correction 5		 122L Toluene 1-70 2 3 - 100
p-Ethyl benzylchloride
C6H4(C2Humidity Correction 5)CH2Cl		 131La Vinyl chloride 2.5-50 2 2R Twin Tubes -
Ethyl chloroformate
ClCO2C2Humidity Correction 5		 131La Vinyl chloride 7-140 2 2R Twin Tubes -
Ethylene
CH2:CH2		 172 Ethylene 25-800 1 3 - -
172L Ethylene 0.2-50 4 3 -
103 Hydrocarbons
(Lower Class)		 8.4-16.8% 1/2 2 Nine Tubes
0.1-8.4% 1
0.35-0.7% 2
171 Acetylene 0.1-2% 1 3 Temp Correction
Ethylene chlorohydrin
ClCH2CH2OH		 111L Methanol 20-200 3 3 Temp Correction C 1
Ethylenediamine
Humidity Correction 2NCH2CH2NH2		 180 Amines 14-280 1 3 Temp Correction 10
180L Amines 0.9-18 1 2 Temp Correction
Ethylene dibromide
BrCH2CH2Br		 136H Methyl bromide 14-210 1 3 Twin Tubes 2
136L Methyl bromide 8-80 1 2 Twin Tubes
Ethylene dichloride
ClCH2CH2Cl		 135 Methyl chloroform 400-2000 1 3 Twin Tubes, Temp Correction 10
135L Methyl chloroform 104-1040 1 2 Twin Tubes, Temp Correction
Ethylene glycol
HOCH2CH2OH		 165L Ethylene glycol 10-100
mg/m3		 2 3R Twin Tubes C 100
mg/m3
Ethylene glycol butyl ether
CH3(CH2)3OCH2CH2OH		 113L Isopropyl alcohol 30-1000 2 3 Temp Correction 20
Ethylene glycol ethyl ether
C2Humidity Correction 5OCH2CH2OH		 113L Isopropyl alcohol 62.5-1000 2 3 Temp Correction 5
Ethylene glycol ethyl ether acetate
CH3CO2CH2CH2OC2Humidity Correction 5		 113L Isopropyl alcohol 6-96 3 3 Temp Correction 5
Ethylene glycol methyl ether
CH3OCH2CH2OH		 113L Isopropyl alcohol 15-900 2 3 Temp Correction 5
Ethylene glycol methyl ether acetate See Methoxyethyl acetate
Ethylene oxide
C2Humidity Correction 4O		 163 Ethylene oxide 0.05-3% 1 3 - 1
163L Ethylene oxide 100-350 1 1R Twin Tubes, Temp Correction
1-100 2
0.4-1 4
163LL Ethylene oxide 5-10 2 1R Twin Tubes, Temp Correction
0.1-5 4
Ethyl ether
(C2Humidity Correction 5)2O		 161 Ethyl ether 0.04-1% 1 3 Temp Correction 400
161L Ethyl ether 400-1200 1 2 Temp Correction
10-400 2
2-Ethyl hexyl alcohol
CH3(CH2)3CH(CH(C2Humidity Correction 5)CH2OH		 117 Isoamyl alcohol 2-120 5 2 Temp Correction -
Ethylidene chloride See 1,1-Dichloroethane
Ethyl mercaptan
C2Humidity Correction 5SH		 72 Ethyl mercaptan 5-120 1 3 Temp Correction 0.5
0.5-5 2-10
72L Ethyl mercaptan 30-75 1/2 2 Temp Correction
0.5-30 1
0.2-0.5 2
70 Mercaptans 5-120 1 3 Temp Correction
0.5-5 2-10
70L Mercaptans 4-8 1/2 2 -
0.5-4 1
0.2-0.5 2
0.1-0.5 4
71H Methyl mercaptan 100-3800 1 3 -
N-Ethyl morpholine
C6Humidity Correction 13NO		 180 Amines 5-100 1 3 Temp Correction 5
180L Amines 0.3-6 1 2 Temp Correction
Fluorine
F2		 17 Hydrogen fluoride 1.25-50 1 3 Humidity Correction 1
Fluorotrichloromethane SeeTrichlorofluoromethane(R11)
Formaldehyde
HCHO		 91 Formaldehyde 20-100 1/2 3 Twin Tubes C 0.3
20-50 1
2-20 2
91M Formaldehyde 2000-6400 1/2 2R -
20-2000 1
8-20 2
91L Formaldehyde 5-40 1 3R Temp Correction
0.1-5 5
91LL Formaldehyde 0.05-1 5 1R Temp Correction
93 Acrolein 0.025-2% 1 2R Temp Correction
Formic acid
HCO2HFuran		 81 Acetic acid 5.2-130 1 3 Humidity Correction 5
Furfural
C5Humidity Correction 4O2		 154 Cyclohexanone 1.1-16.5 4 2R Temp Correction 2
Gasoline (Petrol)
CnHm		 101 Gasoline (Petrol) 0.6-1.2% 1/2 3 - 300
0.03-0.6% 1
0.015-0.03% 2
101L Gasoline (Petrol) 1000-2000 1 3 -
30-1000 2
1M Carbon monoxide 0.1-2% 1 3 -
Heptane
CH3(CH2)5CH3		 101 Gasoline(Petrol) 0.6-1.2% 1/2 3 - -
0.03-0.6% 1
0.015-0.03% 2
101L Gasoline(Petrol) 1000-2000 1 3 -
30-1000 2
103 Hydrocarbons
(LowerClass)		 0.84-1.68% 1/2 2 Nine Tubes
0.07-0.84% 1
0.035-0.07% 2
105 Hydrocarbons
(HigherClass)		 180-2700 1 3 -
90-180 2
Hexamethylenediamine
Humidity Correction 2N(CH2)6NH2		 180L Amines 1.55-31 1 2 Temp Correction -
n-Hexane
CH3(CH2)4CH3		 102H n-Hexane 0.6-1.2% 1/2 3 - 50
0.03-0.6% 1
0.015-0.03% 2
102L n-Hexane 50-1200 1 3 -
10-50 5
103 Hydrocarbons
(LowerClass)		 0.6-1.2% 1/2 2 Nine Tubes
0.05-0.6% 1
0.025-0.05% 2
105 Hydrocarbons
(HigherClass)		 160-2400 1 3 -
80-160 2
Hexone See Methyl isobutyl ketone
2-Hexyl alcohol
CH3(CH2)3CH(OH)CH3		 141L Ethyl acetate 75-2400 3 2 Temp Correction -
Hexylamine
CH3(CH2)5NH2		 180 Amines 9-180 1 3 Temp Correction -
180L Amines 0.65-13 1 2 Temp Correction
Hydrazine
N2Humidity Correction 4		 185 Hydrazine 0.1-2 5 3 Humidity Correction 0.01
0.05-0.1 10
Hydrocarbons
(HigherClass)		 105 Hydrocarbons
(HigherClass)		 200-3000 1 3 - -
100-200 2
Hydrocarbons
(LowerClass)		 103 Hydrocarbons
(LowerClass)		 1.2-2.4% 1/2 2 Nine Tubes -
0.1-1.2% 1
0.05-0.1% 2
Hydrogen
Humidity Correction 2		 30 Hydrogen 0.5-2% 1 3 - -
Hydrogen bromide
HBr		 15L Nitricacid 0.8-16 1 3 Humidity Correction C 3
Hydrogen chloride
HCl		 14M Hydrogen chloride 500-1000 1/2 3 - C 5
20-500 1
10-20 2
14L Hydrogen chloride 20-76 1/2 3 -
1-20 1
0.2-1 2-5
80 Acid gases 8-160 2 2 -
8HH Chlorine 1.5-30% 1/2 3 -
Hydrogen cyanide
HCN		 12H Hydrogen cyanide 0.05-1.6% 1 3 Temp Correction C 4.7
12M Hydrogen cyanide 800-2400 1/2 3 -
50-800 1
17-50 2
12L Hydrogen cyanide 60-120 1/2 2 Humidity Correction
2.5-60 1
1.25-2.5 2
0.36-1.25 5
12LL 0.2-7 2 2 Humidity Correction
Hydrogen fluoride
HF		 17 Hydrogen fluoride 20-100 1 3 Humidity Correction C 3
0.5-20 4
0.25-0.5 7
Hydrogen peroxide
Humidity Correction 2O2		 32 Hydrogen peroxide 0.5-10 5 3 Temp Correction 1
Hydrogen sulphide
Humidity Correction 2S		 4HT Hydrogen sulphide 20-40% 1/2 3 - 10
2-20% 1
1-2% 2
4HP Hydrogen sulphide 10-20% 1/2 3 -
0.5-10% 1
0.25-0.5% 2
4HH Hydrogen sulphide 2-4% 1/2 3 -
0.1-2% 1
4H Hydrogen sulphide 2000-4000 1/2 3 -
100-2000 1
10-100 2-10
4HM Hydrogen sulphide 800-1600 1/2 3 -
50-800 1
25-50 2
4M Hydrogen sulphide 250-500 1/2 3 -
25-250 1
12.5-25 2
4L Hydrogen sulphide 120-240 1/2 3 -
10-120 1
1-10 2-10
4LL Hydrogen sulphide 60-120 1/2 3 -
2.5-60 1
0.25-2.5 2-10
4LT Hydrogen sulphide 2-4 1/2 2R Temp Correction
0.2-2 1
0.1-0.2 2
4LK Hydrogen sulphie 20-40 1/2 3 -
2-20 1
1-2 2
45S Hydrogen sulphide,
sulphur dioxide		 60-120 1/2 3 Twin Tubes
2.5-60 1
1.25-2.5 2
Hydrogen sulphide
+Sulphur dioxide
(Total Quantification)
Humidity Correction 2S+SO2		 45H Hydrogen sulphide
+Sulphur dioxide		 4-8% 1/2 3 - 2
0.2-4% 1
0.02-0.2% 2-10
4-Hydroxy-4-methyl
@-2-pentanone		 See Diacetone alcohol
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 Temp Correction 100
Isoamyl alcohol
(CH3)2CH(CH2)2OH		 117 Isoamyl alcohol 5-300 2 3 Temp Correction 100
Isobutane
(CH3)3CH		 103 Hydrocarbons
(LowerClass)		 0.84-1.68% 1/2 2 Nine Tubes -
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 Temp Correction 150
Isobutyl acrylate
CH2:CHCO2CH2CH(CH3)2		 142L Butylacetate 2.6-78 2 2 Temp Correction -
Isobutyl alcohol
(CH3)2CHCH2OH		 116 Isobutyl alcohol 10-150 2 3 Temp Correction 50
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 Nine Tubes -
0.09-1.08% 1
0.045-0.09% 2
Isopentyl acetate See Isoamyl acetate
Isopentyl alcohol See Isoamyl alcohol
Isophorone
C9Humidity Correction 14O		 154 Cyclohexanone 2-30 8 2R Temp Correction C 5
Isopropyl acetate
CH3CO2CH(CH3)2		 146 Isopropyl acetate 20-500 2 2 Temp Correction 250
Isopropyl alcohol
CH3CH(OH)CH3(i-C3Humidity Correction 7OH)		 113 Isopropyl alcohol 2.5-5% 1/2 3 Temp Correction 400
0.04-2.5% 1
0.02-0.04% 2
113L Isopropyl alcohol 50-800 1 3 Temp Correction
25-50 2
Isopropyl amine
(CH3)2CHNH2		 180 Amines 5.5-110 1 3 Temp Correction 5
180L Amines 0.45-9 1 2 Temp Correction
Isopropyl ether
m(CH3)2(CH)n2O		 141L Ethyl acetate 22.5-720 2 2 Temp Correction 250
161 Ethyl ether 0.018-0.45% 2 3 Temp Correction
Isopropyl mercaptane
(CH3)2CHSH		 70 Mercaptans 10-240 1 3 Temp Correction -
Isovaleric Acid
(CH3)2CHCH2CO2Humidity Correction 		81 Acetic acid 2-50 1 3 Humidity Correction -
81L Acetic acid 0.38-15 1 2R Temp Correction
LPG
(Liquified petroleum gas)		 100A LPG 0.02-0.8% 1 3 - 1000
Maleic anhydride
C4Humidity Correction 2O3		 81 Acetic acid 0.8-20 1 3 Humidity Correction 0.25
Mercaptans
RESH		 70 Mercaptans 5-120 1 3 Temp Correction -
0.5-5 2-10
70L Mercaptans 4-8 1/2 2 -
0.5-4 1
0.2-0.5 2
0.1-0.2 4
2-Mercaptoethanol
HSCH2CH2OH		 75L tert-Butyl mercaptan 0.5-7.5 1 2R Temp Correction -
Mercury vapour
Hg		 40 Mercury vapour 6-13.2mg/m3 1/2 3 - 0.025
mg/m3
0.25-6mg/m3 1
0.05-0.25
mg/m3		 5
Mesityl oxide
(CH3)2C:CHCOCH3		 141L Ethyl acetate 33.8-1080 2 2 Temp Correction 15
Methacrylic acid
CH2:C(CH3)COOH		 81 Acetic acid 1.8-45 1 3 Humidity Correction 20
Methacrylonitrile
CH2:C(CH3)CN		 192 Methacrylonitrile 10-32 1 3 Twin Tubes -
0.5-10 2
0.2-0.5 4
Methaldehyde
(CH3CHO)n		 91L Formaldehyde 0.065-3.25 3 3R Temp Correction -
Methanethiol See Methyl mercaptan
Methanol
CH3OH		 111 Methanol 1.5-4.5% 1/2 3 Temp Correction 200
0.02-1.5% 1
0.004-0.02% 2
0.002-0.004% 4
111L Methanol 40-1000 1 3 Temp Correction
20-40 2
111LL Methanol 20-56 2 2 Temp Correction
2-20 4
2-Methoxyethyl acetate
CH3CO2CH2CH2OCH3		 113L Isopropyl alcohol 50-700 2 2 Temp Correction 5
1-Methoxy-2-propanol
CH3OCH2CH(OH)CH3		 113L Isopropyl alcohol 50-800 4 3 Temp Correction -
Methyl alcohol See Methanol
Methyl acrylate
CH2:CHCO2CH3		 141L Ethyl acetate 20-400 2 2 Temp Correction 2
2-Methyl allylchloride
CH3CH2:CHCH2Cl		 131La Vinyl chloride 2.8-55 1 2R Twin Tubes -
Methyl amine
CH3NH2		 180 Amines 5-100 1 3 Temp Correction 5
180L Amines 0.5-10 1 2 Temp Correction
N-Methyl aniline
C6Humidity Correction 5NHCH3		 181 Aniline 3.5-42 2 3 - 0.5
Methyl bromide
CH3Br		 136H Methyl bromide 300-600 1/2 3 Twin Tubes 1
20-300 1
10-20 2
136L Methyl bromide 100-200 1/2 2 Twin Tubes
10-100 1
2.5-10 4
136LA Methyl bromide 18-36 1 2 Twin Tubes
1-18 2
2-Methyl-3-butenenitrile
(CH3)2CHCH:CHCN		 191L Acrylonitrile 0.4-12 2 3 - -
Methyl chloride
CH3Cl		 51 Fluorochlorocarbons
(Pyrotectube)		 12-480 1 3 Twin Tubes 50
51L Fluorochlorocarbons
(Pyrotectube)		 32-86 1 3 Twin Tubes
1.6-32 2
Methyl chloroform
CH3CCl3		 135 Methyl chloroform 500-2000 1/2 3 Twin Tubes, Temp Correction 350
100-500 1
135L Methyl chloroform 200-900 1/2 2 Twin Tubes, Temp Correction
20-200 1
6-20 2
171 Acetylene 0.06-1.2% 1 3 Temp Correction
Methyl chloroformate
ClCO2CH3		 131La Vinyl chloride 58-1160 5 2R Twin Tubes -
Methylcyclohexane
C6Humidity Correction 11CH3		 102H n-Hexane 0.04-0.84% 1 3 - 400
Methylcyclohexanol
CH3C6Humidity Correction 10OH		 119 Methylcyclohexanol 5-100 2 2 Temp Correction 50
Methylcyclohexanone
C7Humidity Correction 12O		 155 Methylcyclohexanone 50-100 2 2R Temp Correction 50
2-50 3
Methylene chloride
CH2Cl2		 138 Methylene chloride 50-500 1 3 Twin Tubes, Temp Correction 50
25-50 2
138L Methylene chloride 60-150 1 2 Twin Tubes, Temp Correction
10-60 2
51L Fluorochlorocarbons
(Pyrotectube)		 1-20 2 3 Twin Tubes
Methylene iodide
CH2I2		 121L Benzene 0.4-20 5 3 Twin Tubes -
Methyl ether
CH3OCH3