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
CH
3CHO
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
CH
3CO2Humidity 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
(CH
3CO)2O
81 Acetic acid 0.6-15 1 3 Humidity Correction 5
Acetone
CH
3COCH3
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
(CH
3)2C(OH)(CN)
12L Hydrogen cyanide 2.88-69 1 2 Humidity Correction C 4.7
Acetonitrile
CH
3CN
52 Nitroparaffin
(Pyrotectube)
3-180 1 3 - 40
Acetylene
HC≡CH
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
CH
2:CHCHO
93 Acrolein 10-800 2 2R Temp Correction C 0.1
3.3-10 4
Acrylicacid
CH
2:CHCO2Humidity Correction
81 Acetic acid 2-50 1 3 Humidity Correction 2
Acrylonitrile
CH
2: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
CH
2:CHCH2NCS
149 Methyl metacrylate 5-200 2 2 Temp Correction -
Allyl chloride
CH
2: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
R・NH
2 calibration
180 Amines 1-280 1 3 Temp Correction -
Amines
CH
3NH2 calibration
180L Amines 0.25-39 1 2 Temp Correction -
2-Aminoethanol See Ethanolamine
Ammonia
NH
3












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
CH
3CO2(CH2)4CH3
147 n-Amyl acetate 10-200 2 2 Temp Correction 100
Aniline
C
6Humidity Correction 5NH2
181 Aniline 30-60 2 3 - 2
2.5-30 3
1.25-2.5 5
Arsine
AsH
3
19LA Arsine 2.4-10 1 2 - -
1.5-2.4 3
0.1-1.5 5
0.04-0.1 10
Benzaldehyde
C
6Humidity Correction 5CHO
91L Formaldehyde 4-92 1 3R Temp Correction -
Benzene
C
6Humidity 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
C
6Humidity Correction 5CH2Br
136L Methyl bromide 25-850 1 2 Twin Tubes -
Benzyl chloride
C
6Humidity Correction 5CH2Cl
132L Trichloroethylene 0.8-20 2 2R Temp Correction 1
Boron trichloride
BCl
3
12L Hydrogen cyanide 0.5-20 2 2 Humidity Correction -
Bromine
Br
2
8La Chlorine 0.05-0.8 4 3 - 0.1
Bromochloromethane See Chlorobromomethane
Bromoform
CH
3(CH2)2CH3
136L Methyl bromide 1-50 1 2 Twin Tubes 0.5
0.5-18 2
1,3-Butadiene
CH
2: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
CH
3(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
CH
3CH2CH2CH2OH
114 n-Butanol 10-150 3 3 Temp Correction C 50
sec-Butanol
CH
3CH2CH(OH)CH3
115 sec-Butanol 5-150 3 3 Temp Correction 100
2-Butanone See Methyl ethyl ketone(MEK)
Butyl acetate
CH
3CO2(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
(CH
3)3COH
102L n-Hexane 0.05-1.2% 2 3 - 100
Butylamine
CH
3(CH2)3NH2
180 Amines 5-100 1 3 Temp Correction C 5
180L Amines 0.4-8 1 2 Temp Correction
Butyl mercaptan
CH
3(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
(CH
3)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
CH
3CH2CH2CO2Humidity Correction
81L Acetic acid 0.325-13 1 2R Temp Correction -
Butyronitrile
CH
3CH2CH2CN
191L Acrylonitrile 15-360 1 3 Twin Tubes -
Carbon dioxide
CO
2
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
CS
2
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
CCl
4
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
Cl
2
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
ClO
2
8H Chlorine 25-250 1 3 - 0.1
8La Chlorine 0.3-4.8 1 3
Chlorobenzene
C
6Humidity 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
CH
2BrCl
135 Methyl chloroform 22-110 1 3 Twin Tubes, Temp Correction 200
Chlorocyclohexane
C
6Humidity Correction 11Cl
102L n-Hexane 50-1200 2 3 - -
Chlorodifluoromethane(R22)
CHClF
2
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
CHCl
3
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
Cl
3CNO2
134 Carbon tetrachloride 2.5-60 1 1R Twin Tubes 0.1
m-Cresol
C
6Humidity Correction 4(CH3)OH
61 o-Cresol 1-25 2 2R Temp Correction 5
o-Cresol
C
6Humidity Correction 4(CH3)OH
61 o-Cresol 25-62.5 1 2R Temp Correction 5
1-25 2
0.4-1 4
p-Cresol
C
6Humidity Correction 4(CH3)OH
61 o-Cresol 1-25 2 2R Temp Correction 5
Cumene
C
6Humidity Correction 5CH(CH3)2
122L Toluene 3.2-80 2 3 - 50
Cyclohexane
C
6Humidity 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
C
6Humidity Correction 11OH
118 Cyclohexanol 5-100 2 2 Temp Correction 50
Cyclohexanone
C
6Humidity Correction 10O
154 Cyclohexanone 30-75 2 2R Temp Correction 25
2-30 4
91L Formaldehyde 10-470 1/2 3R Temp Correction
Cyclohexene
C
6Humidity Correction 12
151 Acetone 0.01-0.8% 1 3 Temp Correction 300
Cyclohexylamine
C
6Humidity Correction 13N
180 Amines 7-140 1 3 Temp Correction 10
180L Amines 0.5-10 1 2 Temp Correction
Cymene
C
10Humidity Correction 14
141L Ethyl acetate 25-270 1/2 2 Temp Correction -
n-Decane
CH
3(CH2)8CH3
105 HydroCarbons
(HigherClass)
400-6000 1 3 - -
200-400 2
Diacetyl
CH
3COCOCH3
92 Acetaldehyde 25-1500 3 2R Temp Correction -
1,2-Diaminoethane See Ethylenediamine
Diborane
B
2Humidity Correction 6
22 Diborane 2-5 1 2 Temp Correction 0.1
0.05-2 2
0.02-0.05 5
1,1-Dibromoethane
CH
3CHBr2
136L Methyl bromide 7-70 1 2 Twin Tubes -
1,2-Dibromoethane See Ethylene dibromide
Dibromomethane
CH
2Br2
136L Methyl bromide 5-50 1 2 Twin Tubes -
Di-n-butylamine
(CH
3CH2CH2CH2)2NH
180L Amines 0.4-8 1 2 Temp Correction -
Dichlorvos
C
4Humidity 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
C
6Humidity Correction 4Cl2
127 o-Dichlorobenzene 2.5-300 2 3 Temp Correction -
o-Dichlorobenzene
C
6Humidity Correction 4Cl2
127 o-Dichlorobenzene 2.5-300 2 3 Temp Correction 25
p-Dichlorobenzene
C
6Humidity Correction 4Cl2
127 o-Dichlorobenzene 2.5-300 2 3 Temp Correction 10
Dichlorodifluoromethane
(R12)
CCl
2F2
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
CH
3CHCl2
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)
CH
3CCl2F
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
ClCH
2CH: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)
CClF
2CClF2
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)
CHCl
2CF3
51 Fluorochlorocarbons
(Pyrotectube)
560-1600 1/2 3 Twin Tubes -
14-560 1
51L Fluorochlorocarbons
(Pyrotectube)
1.4-28 2 3 Twin Tubes
Diethylamine
(C
2Humidity Correction 5)2NH
180 Amines 5.5-110 1 3 Temp Correction 5
180L Amines 0.45-9 1 2 Temp Correction
Diethylaminoethanol
(C
2Humidity Correction 5)NCH2CH2OH
180L Amines 0.6-12 1 2 Temp Correction 2
Diethylbenzene
C
6Humidity 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
(CH
3)3CCH:C(CH3)2
121 Benzene 45-540 1 3 - -
Diisobutylketone
[(CH
3)2CHCH22CO
102L n-Hexane 0.2-1% 2 3 - 25
91L Formaldehyde 0.58-29 4 3R Temp Correction
Diisopropyl benzene
C
6Humidity Correction 5N[CH(CH3)22
141L Ethyl acetate 12-400 1/2 2 Temp Correction -
Diisopropyl toluene
C
6Humidity Correction 4(CH3)N
[CH(CH
3)22
141L Ethyl acetate 12-400 1/2 2 Temp Correction -
Diisopropylamine
[(CH
3)2CH]2NH
180 Amines 5-100 1 3 Temp Correction 5
180L Amines 0.3-6 1 2 Temp Correction
N,N-Dimethyl acetamide
CH
3CON(CH3)2
184 N,N-Dimethyl acetamide 60-240 1 3 Temp Correction 10
5-60 2
1.5-5 4
Dimethylamine
(CH
3)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
(CH
3)2NCH2CH2OH
180L Amines 0.65-13 1 2 Temp Correction -
Dimethylaminopropylamine
(CH
3)2NCH2CH2CH2NH2
180 Amines 8-160 1 3 Temp Correction -
180L Amines 0.6-12 1 2
N,N-Dimethylaniline
C
6Humidity Correction 3(CH3)2(NH2)
181 Aniline 2.5-30 3 3 - 5
Dimethylbenzene See Xylene
Dimethyl disulphide
(CH
3)2S2
53 Dimethyl sulphide
(Pyrotec tube)
0.16-6 3 3 Twin Tubes -
N,N-Dimethylethylamine
C
2Humidity 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(CH
3)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
NH
2N(CH3)2
185 Hydrazine 0.1-2 5 3 Humidity Correction 0.5
Dimethylsulphide
(CH
3)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
C
4Humidity Correction 8O2
159 Tetrahydrofuran 25-140 1 3 Temp Correction 25
163 Ethyleneoxide 0.1-6% 1 3 -
Dipropylamine
(CH
3CH2CH2)2NH
180 Amines 4-80 1 3 Temp Correction -
180L Amines 0.35-7 1 2 Temp Correction
Divinyl benzene
C
6Humidity Correction 4(CH:CH2)2
124L Styrene 1-15 3 3 - 10
Divinyl methoxysilane
(CH
2:CH2)2CH3OSi
113L Isopropyl alcohol 2.5-40 2 3 Temp Correction -
1,2-Epoxypropane See Propylene oxide
Ethanethiol See Ethyl mercaptan
Ethanol
C
2Humidity 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
CH
3CO2C2Humidity 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
CH
2:CHCO2C2Humidity Correction 5
141L Ethyl acetate 10-160 3 2 Temp Correction 5
Ethylamine
C
2Humidity Correction 5NH2
180 Amines 5-100 1 3 Temp Correction 5
180L Amines 0.45-9 1 2 Temp Correction
Ethyl benzene
C
6Humidity Correction 5C2Humidity Correction 5
122L Toluene 1-70 2 3 - 100
p-Ethyl benzylchloride
C6H
4(C2Humidity Correction 5)CH2Cl
131La Vinyl chloride 2.5-50 2 2R Twin Tubes -
Ethyl chloroformate
ClCO
2C2Humidity Correction 5
131La Vinyl chloride 7-140 2 2R Twin Tubes -
Ethylene
CH
2: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
ClCH
2CH2OH
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
BrCH
2CH2Br
136H Methyl bromide 14-210 1 3 Twin Tubes 2
136L Methyl bromide 8-80 1 2 Twin Tubes
Ethylene dichloride
ClCH
2CH2Cl
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
HOCH
2CH2OH
165L Ethylene glycol 10-100
mg/m3
2 3R Twin Tubes C 100
mg/m3
Ethylene glycol butyl ether
CH
3(CH2)3OCH2CH2OH
113L Isopropyl alcohol 30-1000 2 3 Temp Correction 20
Ethylene glycol ethyl ether
C
2Humidity Correction 5OCH2CH2OH
113L Isopropyl alcohol 62.5-1000 2 3 Temp Correction 5
Ethylene glycol ethyl ether acetate
CH
3CO2CH2CH2OC2Humidity Correction 5
113L Isopropyl alcohol 6-96 3 3 Temp Correction 5
Ethylene glycol methyl ether
CH
3OCH2CH2OH
113L Isopropyl alcohol 15-900 2 3 Temp Correction 5
Ethylene glycol methyl ether acetate See Methoxyethyl acetate
Ethylene oxide
C
2Humidity 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
(C
2Humidity 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
CH
3(CH2)3CH(CH(C2Humidity Correction 5)CH2OH
117 Isoamyl alcohol 2-120 5 2 Temp Correction -
Ethylidene chloride See 1,1-Dichloroethane
Ethyl mercaptan
C
2Humidity 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
C
6Humidity Correction 13NO
180 Amines 5-100 1 3 Temp Correction 5
180L Amines 0.3-6 1 2 Temp Correction
Fluorine
F
2
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
HCO
2HFuran
81 Acetic acid 5.2-130 1 3 Humidity Correction 5
Furfural
C
5Humidity 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
CH
3(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
CH
3(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
CH
3(CH2)3CH(OH)CH3
141L Ethyl acetate 75-2400 3 2 Temp Correction -
Hexylamine
CH
3(CH2)5NH2
180 Amines 9-180 1 3 Temp Correction -
180L Amines 0.65-13 1 2 Temp Correction
Hydrazine
N
2Humidity 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
I
2
9L Nitrogen dioxide 0.2-12 2 3 - C 0.1
80 Acid gases 0.12-2.4 2 2 -
Isoamyl acetate
CH
3CO2(CH2)2CH(CH3)2
148 Isoamyl acetate 10-200 2 2 Temp Correction 100
Isoamyl alcohol
(CH
3)2CH(CH2)2OH
117 Isoamyl alcohol 5-300 2 3 Temp Correction 100
Isobutane
(CH
3)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
(CH
3)2C:CH2
101L Gasoline(Petrol) 0.07-2.2% 1 3 - -
Isobutyl acetate
CH
3CO2CH2CH(CH3)2
144 Isobutyl acetate 10-300 2 2 Temp Correction 150
Isobutyl acrylate
CH
2:CHCO2CH2CH(CH3)2
142L Butylacetate 2.6-78 2 2 Temp Correction -
Isobutyl alcohol
(CH
3)2CHCH2OH
116 Isobutyl alcohol 10-150 2 3 Temp Correction 50
Isooctane
(CH
3)3CCH2CH(CH3)2
101 Gasoline(Petrol) 0.027-0.54% 1 3 - -
Isopentane
(CH
3)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
C
9Humidity Correction 14O
154 Cyclohexanone 2-30 8 2R Temp Correction C 5
Isopropyl acetate
CH
3CO2CH(CH3)2
146 Isopropyl acetate 20-500 2 2 Temp Correction 250
Isopropyl alcohol
CH
3CH(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
(CH
3)2CHNH2
180 Amines 5.5-110 1 3 Temp Correction 5
180L Amines 0.45-9 1 2 Temp Correction
Isopropyl ether
[(CH
3)2(CH)]2O
141L Ethyl acetate 22.5-720 2 2 Temp Correction 250
161 Ethyl ether 0.018-0.45% 2 3 Temp Correction
Isopropyl mercaptane
(CH
3)2CHSH
70 Mercaptans 10-240 1 3 Temp Correction -
Isovaleric Acid
(CH
3)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
C
4Humidity Correction 2O3
81 Acetic acid 0.8-20 1 3 Humidity Correction 0.25
Mercaptans
R・SH
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
HSCH
2CH2OH
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
(CH
3)2C:CHCOCH3
141L Ethyl acetate 33.8-1080 2 2 Temp Correction 15
Methacrylic acid
CH
2:C(CH3)COOH
81 Acetic acid 1.8-45 1 3 Humidity Correction 20
Methacrylonitrile
CH
2:C(CH3)CN
192 Methacrylonitrile 10-32 1 3 Twin Tubes -
0.5-10 2
0.2-0.5 4
Methaldehyde
(CH
3CHO)n
91L Formaldehyde 0.065-3.25 3 3R Temp Correction -
Methanethiol See Methyl mercaptan
Methanol
CH
3OH
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
CH
3CO2CH2CH2OCH3
113L Isopropyl alcohol 50-700 2 2 Temp Correction 5
1-Methoxy-2-propanol
CH
3OCH2CH(OH)CH3
113L Isopropyl alcohol 50-800 4 3 Temp Correction -
Methyl alcohol See Methanol
Methyl acrylate
CH
2:CHCO2CH3
141L Ethyl acetate 20-400 2 2 Temp Correction 2
2-Methyl allylchloride
CH
3CH2:CHCH2Cl
131La Vinyl chloride 2.8-55 1 2R Twin Tubes -
Methyl amine
CH
3NH2
180 Amines 5-100 1 3 Temp Correction 5
180L Amines 0.5-10 1 2 Temp Correction
N-Methyl aniline
C
6Humidity Correction 5NHCH3
181 Aniline 3.5-42 2 3 - 0.5
Methyl bromide
CH
3Br
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
(CH
3)2CHCH:CHCN
191L Acrylonitrile 0.4-12 2 3 - -
Methyl chloride
CH
3Cl
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
CH
3CCl3
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
ClCO
2CH3
131La Vinyl chloride 58-1160 5 2R Twin Tubes -
Methylcyclohexane
C
6Humidity Correction 11CH3
102H n-Hexane 0.04-0.84% 1 3 - 400
Methylcyclohexanol
CH
3C6Humidity Correction 10OH
119 Methylcyclohexanol 5-100 2 2 Temp Correction 50
Methylcyclohexanone
C
7Humidity Correction 12O
155 Methylcyclohexanone 50-100 2 2R Temp Correction 50
2-50 3
Methylene chloride
CH
2Cl2
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
CH
2I2
121L Benzene 0.4-20 5 3 Twin Tubes -
Methyl ether
CH
3OCH3
161 Ethylether 0.03-0.85% 1 3 Temp Correction -
Mehtyl ethy l ketone
CH
3COC2Humidity Correction 5
152 Methyl ethyl ketone 0.02-0.6% 2 3 Temp Correction 200
151L Acetone 21-1680 5 2R Temp Correction
Methylhydrazine
Humidity Correction
2NNHCH3
185 Hydrazine 0.6-12 5 3 Humidity Correction C 0.1
Methyl isobutyl ketone
(CH
3)2CHCH2COCH3
153 Methyl isobutyl ketone 0.05-0.6% 2 3 Temp Correction 50
Methylmercaptan
CH
3SH
71H Methylmercaptan 1000-2700 1/2 3 - 0.5
50-1000 1
20-50 2
71 Methylmercaptan 70-140 1/2 3 Temp Correction
2.5-70 1
0.25-2.5 2-10
70 Mercaptans 3.5-84 1 3 Temp Correction
0.5-5 2-10
70L Mercaptans 4-8 1/2 2 Temp Correction
0.5-4 1
0.2-0.5 2
0.1-0.5 4
Methyl metacrylate
CH
2:C(CH3)CO2CH3
149 Methyl metacrylate 200-500 1 2 Temp Correction 100
10-200 2
N-Methyl morpholine
CH
3N(C2Humidity Correction 4)2O
180 Amines 5-100 1 3 Temp Correction -
180L Amines 0.3-6 1 2 Temp Correction
4-Methyl pyridine
C
6Humidity Correction 7N
182 Pyridine 0.38-10.5 1 3 Temp Correction -
N-Methyl pyrrolidone
C
5Humidity Correction 9NO
180 Amines 13.5-270 1 3 Temp Correction -
Monochlorobenzene See Chlorobenzene
Morpholine
NH(C
2Humidity Correction 4)O
180 Amines 9-180 1 3 Temp Correction 20
180L Amines 0.5-10 1 2 Temp Correction
Naphthalene
C
10Humidity Correction 8
60 Phenol 0.5-14 2 2R Temp Correction -
Nickel carbonyl
Ni(CO)
4
20L Nickel carbonyl 200-800 1 3 - 0.05
10-200 4
Nitric acid
HNO
3
15L Nitric acid 20-40 1/2 3 Humidity Correction 2
1-20 1
0.1-1 2-10
80 Acid gases 5-100 2 2 -
Nitroethane
CH
3CH2NO2
52 Nitroparaffin
(Pyrotectube)
4-240 1 3 - 100
Nitrogen dioxide
NO
2
9L Nitrogen dioxide 30-125 1 3 - 3
0.5-30 2
10 NO+NO2 2.5-200 1 3 Twin Tubes
80 Acidgases 0.2-4 2 2 -
Nitric oxide
NO
10 NO+NO2
5-200 1 3 Twin Tubes, Temp Correction 25
2.5-5 2
Nitrogen oxides
NO+NO
2
11HA Nitrogen oxides 50-2500 1 2 - -
11S Nitrogen oxides 250-625 1/2 2 -
10-250 1
5-10 2
11L Nitrogen oxides 5-16.5 1 3 -
0.2-5 2
0.08-0.2 4
0.04-0.08 8
Nitromethane
CH
3NO2
52 Nitroparaffin
(Pyrotectube)
5-300 1 3 - 20
1-Nitropropane
CH
3CH2CH2NO2
52 Nitroparaffin
(Pyrotectube)
4.2-252 1 3 - 25
2-Nitropropane
(CH
3)2CHNO2
52 Nitroparaffin
(Pyrotectube)
3.7-222 1 3 - 10
Nitrotrichloromethane See Chloropicrin
Nonane
CH
3(CH2)7CH3
105 Hydrocarbons(HigherClass) 260-3900 1 3 - 200
130-260 2
Octane
CH
3(CH2)6CH3
101 Gasoline(Petrol) 0.036-0.72% 1 3 - 300
105 Hydrocarbons
(HigherClass)
200-3000 1 3 -
100-200 2
Olefines 100A LPG 0.34-13.6mg/l 1 3 - -
Oxygen
O
2
31B Oxygen 6-24% 1/2 3 @ -
3-6% 1
Ozone
O
3
18M Ozone 200-400 1/2 3 - 0.08
20-200 1
4-20 2-5
18L Ozone 0.6-3 1 3 -
0.05-0.6 5
0.025-0.05 10
Pentachloroethane
Cl
2CHCCl3
133L Perchloroethylene 20-500 1 2R Temp Correction -
1,3-Pentadiene
CH
3CH:CHCH:CH2
174 1,3-Butadiene 250-4000 1 3 Temp Correction -
174L 1,3-Butadiene 42.5-850 4 3 Temp Correction -
Pentamethylenediamine
Humidity Correction
2N(CH2)5NH2
180L Amines 0.75-15 1 2 Temp Correction -
n-Pentane
CH
3(CH2)3CH3
104 Butane 30-1680 1 3 - 600
103 Hydrocarbons
(LowerClass)
0.0375-1.8% 4 3 Nine Tubes
2-Pentenenitrile
CH
3CH2CH:CHCN
193 2-Pentenenitrile 6-15 2 3 Twin Tubes, Temp Correction -
0.5-6 4
191L Acrylonitrile 0.24-7.2 2 3 -
3-Pentenenitrile
CH
3CH:CHCH2CN
191L Acrylonitrile 0.4-12 2 3 - -
Pentyl acetate See n-Amyl acetate
Perchloroethylene See Tetrachloroethylene
Petroleum distillates See Gasoline(Petrol)
Petroleum naphtha 106 Petroleum naphtha 14-28mg/l 1/2 3 - -
1-14mg/l 1
0.5-1mg/l 2
Phenol
C
6Humidity Correction 5OH
60 Phenol 62.5-187 1/2 2R Temp Correction 5
25-62.5 1
1-25 2
0.4-1 4
Phenylethylene See Styrene
Phosgene
COCl
2
16 Phosgene 5-20 1 1.5R Temp Correction 0.1
0.1-5 5
0.05-0.1 10
Phosphine
PH
3
7J Phosphine 500-1000 1/2 3 - 0.3
25-500 1
2.5-25 2-10
7 Phosphine 50-100 1 3 -
5-50 2
2.5-5 4
7L Phosphine 0.3-5 5 3 -
0.15-0.3 10
7LA Phosphine 2.5-9.8 1 2 Temp Correction
1.5-2.5 3
0.1-1.5 5
0.05-0.1 10
α-Pinene
C
10Humidity Correction 16
121 Benzene 95-1140 3 3 - -
Propane
CH
3CH2CH3
103 Hydrocarbons
(LowerClass)
1.2-2.4% 1/2 2 Nine Tubes 2500
0.1-1.2% 1
0.05-0.1% 2
Propionaldehyde
CH
3CH2CHO
91L Formaldehyde 0.76-38 1 3R Temp Correction -
151L Acetone 24-1880 2 2R Temp Correction
Propionic acid
CH
3CH2COOH
81 Acetic acid 3-75 1 3 Humidity Correction 10
81L Acetic acid 0.25-10 1 2R Temp Correction
Propionitrile
CH
3CH2CN
191 Acrylonitrile 50-1200 4 3 Twin Tubes, Temp Correction -
Propyl acetate
CH
3CO2CH2CH2CH3
145 Propyl acetate 20-500 2 2 Temp Correction 200
Propyl alcohol
CH
3(CH2)2OH
113 Isopropyl alcohol 0.04-2.5% 1 3 Temp Correction 200
113L Isopropyl alcohol 65-1040 1 3 Temp Correction
Propylamine
CH
3(CH2)2NH2
180 Amines 6-120 1 3 Temp Correction -
180L Amines 0.5-10 1 2 Temp Correction
Propylene
CH
3CH:CH2
100A LPG 0.02-0.8% 1 3 - -
Propylene dichloride
CH
3CHClCH2Cl
131La Vinyl chloride 40-800 2 2R Twin Tubes 75
Propylene imine
CH
3CHCH2NH
180 Amines 5.5-110 1 3 Temp Correction 2
180L Amines 0.35-7 1 2 Temp Correction
Propylene oxide
CH
3CHCH2O
163 Ethylene oxide 0.065-3.9% 1 3 - 20
163L Ethylene oxide 1-100 1 1R Twin Tubes, Temp Correction
Propyl mercaptan
CH
3(CH2)2SH
70 Mercaptans 22.5-540 1 3 - -
70L Mercaptans 4.8-9.6 1/2 2 -
0.6-4.8 1
0.24-0.6 2
0.12-0.6 4
Pyridine
C
5Humidity Correction 5N
182 Pyridine 14-35 1/2 3 Temp Correction 5
0.5-14 1
0.2-0.5 2
3,3-Dichloro-1,1,2,2
-pentafluoropropane
(R225ca)
CHCl
2CF2CF3
51 Fluorochlorocarbons
(Pyrotectube)
20-800 1 3 Twin Tubes -
51L Fluorochlorocarbons
(Pyrotectube)
1.1-22 2 3 Twin Tubes -
Stoddardsolvent 128 Stoddardsolvent 50-8000
mg/m3
1 3 - 100
Styrene
C
6Humidity Correction 5CH:CH2
124 Styrene 500-1500 1/2 3 - 20
20-500 1
10-20 2
124L Styrene 25-100 1 3 -
2-25 4
153 Methyl isobutyl ketone 0.075-0.9% 1 3 Temp Correction
Sulphur dioxide
SO
2
5H Sulphur dioxide 4-8% 1/2 3 - 2
0.5-4% 1
0.05-0.5% 2-10
5M Sulphur dioxide 1800-3600 1/2 3 Temp Correction
100-1800 1
20-100 4
5L Sulphur dioxide 100-200 1/2 3 -
5-100 1
2.5-5 2
1.25-2.5 4
5La Sulphur dioxide 30-60 1 3 -
2-30 2
1-2 4
0.5-1 8
5LC Sulphur dioxide 10-25 1 3 Temp Correction
0.25-10 2
0.1-0.25 4
5Lb Sulphur dioxide 5-10 1 3 -
0.2-5 2
0.1-0.2 4
0.05-0.1 8
45S Hydrogen sulphide
 ,sulphur dioxide
10-20 1/2 3 Twin Tubes
0.5-10 1
0.25-0.5 2
80 Acid gases 30-60 1 2 -
1.5-30 2
0.75-1.5 4
Sulphuric aicd 35 Sulfuric acid 1-5mg/m3 10 3 - -
1,1,2,2-Tetrabromoethane
Br
2CHCHBr2
135L Methyl chloroform 0.92-9.2 4 2 Twin Tubes, Temp Correction -
Tetrachlorodifluoroethane
(R112)
CCl
2FCl2F
51H Fluorochlorocarbons
(Pyrotec tube)
1000-3000 1/2 3 Twin Tubes 500
125-1000 1
51 Fluorochlorocarbons
(Pyrotec tube)
7-280 1 3 Twin Tubes
51L Fluorochlorocarbons
(Pyrotec tube)
20-54 1 3 Twin Tubes
1-20 2
1,1,2,2-Tetrachloroethane
Cl
2CHCHCl2
131L Vinyl chloride 4-80 4 2R Twin Tubes, Temp Correction 1
Tetrachloroethylene
Cl
2C:CCl2
133HA Tetrachloroethylene 300-900 1/2 2R - 25
20-300 1
7-20 2
133M Tetrachloroethylene 100-250 1/2 2R Temp Correction
5-100 1
2-5 2
133L Tetrachloroethylene 25-70 1/2 2R Temp Correction
2-25 1
1-2 2
133LL Tetrachloroethylene 3-9 1/2 2R Temp Correction
0.2-3 1
0.1-0.2 2
132HH Trichloroethylene 0.075-1.5% 1 3 Temp Correction
Tetrachloromethane See Carbon tetrachloride
Tetrahydrofuran
C
4Humidity Correction 8O
159 Tetrahydrofuran 50-800 1 3 Temp Correction 200
20-50 2
161 Ethyl ether 0.056-1.4% 1 3 Temp Correction
Tetrahydrothiophene
C
4Humidity Correction 8S
76H Tetrahydrothiophene 10-200 1 2 Twin Tubes, Temp Correction -
76 Tetrahydrothiophene 1-10 4 2 Twin Tubes, Temp Correction
76M Tetrahydrothiophene 10-100
mg/m3
2 2 Twin Tubes, Temp Correction
Tetramethylenediamine
Humidity Correction
2N(CH2)4NH2
180L Amines 0.8-16 1 2 Twin Tubes, Temp Correction -
Thionyle chloride
SOCl
2
5La Sulphur dioxide 1.44-21.6 2 3 Temp Correction -
Toluene
C
6Humidity Correction 5CH3
122 Toluene 300-600 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 Temp Correction
Toluol See Toluene
o-Toluidine
C
6Humidity Correction 4(CH3)(NH2)
181 Aniline 5-60 2 3 - 2
Trichloroacetic acid
CCl
3COOH
15L Nitric acid 1-37.5 1 3 Humidity Correction 1
1,2,4-Trichlorobenzene
C
6Humidity Correction 3Cl3
131La Vinyl chloride 0.65-13 4 2R Twin Tubes C 5
1,1,1-Trichloroethane See Methyl chloroform
1,1,2-Trichloroethane
Cl
2CHCH2Cl
135 Methyl chloroform 220-1100 2 3 Twin Tubes, Temp Correction 10
Trichloroethylene
Cl
2C:CHCl











132HH Trichloroethylene 1-2.5% 1/2 3 Temp Correction 50
0.05-1% 1
132HA Trichloroethylene 500-1300 1/2 2R Temp Correction
50-500 1
20-50 2
132M Trichloroethylene 100-250 1/2 2R Temp Correction
5-100 1
2-5 2
132L Trichloroethylene 25-70 1/2 2R Temp Correction
2-25 1
1-2 2
132LL Trichloroethylene 4-8.8 1/2 2R Temp Correction
0.25-4 1
0.125-0.25 2
Trichlorofluoromethane
(R11)
CCl
3F
51H Fluorochlorocarbons
(Pyrotec tube)
2200-6600 1 3 Twin Tubes C 100
275-2200 2
51 Fluorochlorocarbons
(Pyrotec tube)
8-320 1 3 Twin Tubes
51L Fluorochlorocarbons
(Pyrotec tube)
16-43 1 3 Twin Tubes
0.8-16 2
Trichloromethane See Chloroform
Trichloronitromethane See Chloropicrin
1,2,3-Trichloropropane
CH
2ClCHClCH2Cl
135L Methyl chloroform 36-360 2 2 Twin Tubes, Temp Correction 10
1,1,2-Trichloro
-1,2,2-trifluoroethane
(R113)
CClF
2CCl2F
51H Fluorochlorocarbons
(Pyrotec tube)
2000-6000 1/2 3 Twin Tubes 1000
250-2000 1
51 Fluorochlorocarbons
(Pyrotec tube)
10-400 1 3 Twin Tubes
51L Fluorochlorocarbons
(Pyrotec tube)
20-54 1 3 Twin Tubes
1-20 2
Trichlorotrifluoroethane
(R113b)
CCl
3CF3
51H Fluorochlorocarbons
(Pyrotec tube)
1600-4800 1/2 3 Twin Tubes 1000
200-1600 1
51 Fluorochlorocarbons
(Pyrotec tube)
10-400 1 3 Twin Tubes
51L Fluorochlorocarbons
(Pyrotec tube)
16-43 1 3 Twin Tubes
0.8-16 2
Triethylamine
(C
2Humidity Correction 5)3N
180 Amines 4.5-90 1 3 Temp Correction 1
180L Amines 0.3-6 1 2 Temp Correction
Trimethylamine
(CH
3)3N
3M Ammonia 25-250 1 3 5
180 Amines 3.5-70 1 3 Temp Correction
180L Amines 0.25-5 1 2 Temp Correction
Trimethyl benzene
C
6Humidity Correction 3(CH3)3
123 Xylene 10-300 2 3 - 25
Vinyl acetate
CH
3CO2CH:CH2
143 Vinyl acetate 100-250 1 3 Twin Tubes 10
10-100 2
5-10 4
141 Ethyl acetate 0.02-0.9% 1 3 Temp Correction
Vinyl benzene See Styrene
Vinyl chloride
CH
2:CHCl
131 Vinyl chloride 1-2% 1/2 3 - 1
0.05-1% 1
0.025-0.05% 2
131La Vinyl chloride 20-54 1/2 2R Twin Tubes
1-20 1
0.5-1 2
0.25-0.5 4
131L Vinyl chloride 3-6.6 1 2R Twin Tubes, Temp Correction
0.2-3 2
0.1-0.2 4
131LB Vinyl chloride 20-70 1 3 Temp Correction
1-20 2
0.25-1 4
Vinyl cyanide See Acrylonitrile
Vinylidene chloride
CH
2:CCl2
130L Vinylidene chloride 14-40.6 1/2 2R Twin Tubes 5
1-14 1
0.4-1 2
Vinyl trimethoxysilane
CH
2:CHSi(OCH3)3
113L Isopropyl alcohol 2.5-40 2 2 Temp Correction -
Water vapour
Humidity Correction
2O
6 Water vapour 18-32mg/l 1/2 3 Temp Correction -
1-18mg/l 1
0.5-1mg/l 2
6L Water vapour 1-2mg/l 1/2 3 Temp Correction
0.05-1mg/l 1
6LP Pipeline Dew Point Tube 3-40
LB/MMCF
1 3 Temp Correction
6LLP Pipeline Dew Point Tube 2-10
LB/MMCF
2 3 Temp Correction
Xylene
C
6Humidity Correction 4(CH3)2
123 Xylene 250-500 1/2 3 - 100
10-250 1
5-10 2
100A LPG 0.1-1.2% 2 3 -
122L Toluene 100-200 1 3 -
4-100 2
2-4 4
 
 

How to read data sheet/chart
Definition of Specification Terms

Explanation of specification items
(Example)

Name and chemical formula Styrene C6Humidity Correction5CH:CH2 Detector tube number NO.124L

External appearance


Performance




Measuring Range

2 to 25 ppm

25 to 100 ppm

Number of Pump Strokes

4

1

Correction Factor

1

4

Sampling Time

30 seconds per pump stroke

Detecting Limit

0.5 ppm (n=4)

Color Change

White Yellow

Reaction Principle

Styrene reacts with sulfuric acid fuming to form a condensation polymer which is yellow stain.

Coefficient of Variation

10% (for 2 to 5 ppm), 5% (for 5 to 25 ppm)

Shelf Life 3 Years
Corrections for
temperature & humidity

Unnecessary
Store the tubes at cool and dark place.


Possible coexisting substances and their interferences

Substance

Concentration

Interference

Change color by itself

Alcohols, Esters

10 times

Plus error (Bleaching)

No discoloration

Aldehydes, Ketones

10 times

Plus error (Bleaching)

No discoloration

Butadiene

5 ppm

Plus error (Bleaching)

Produce blackish brown


Other substance measurable with this detector tube

Substance

Correction Factor

Pump Strokes

Measuring Range

Divinyl benzene

0.6

3

1 to 15 ppm


Calibration gas generation Diffusion tube method


TLV-TWA TLV-STEL Explosive range
20ppm 40ppm 1.1 to 6.1%





Name and chemical formula
The name of the substance to be measured with this detector tube and
its chemical formula


Detector tube number
The identification number of the detector tube


External appearance
The external appearance of the detector tube(s) is briefly illustrated. Both
ends of the tube(s) should be broken and prepared before measurements
as shown below.


Measuring range
The range of the substance concentrations that can be measured with
the detector tube. The standard measuring range, or range of the printed
calibration scale is given in the shaded box. Some lower limit values of
the standard measuring ranges are parenthesized when they are not
printed on the tubes but only their scale lines are printed.


Number of pump strokes
The number of pump strokes required for measuring a given range of
concentrations. The volume to be sampled with those strokes is given
in the parentheses. The standard pump strokes and the standard sampling
volume are given in the shaded box. With most Gastec detector tubes,
the standard pump strokes are prescribed as 1 (the standard sampling
volume is 100 ml).


Correction factor
When measuring an extended range of concentration, that is, when the
measurement is performed with other than the standard number of
pump strokes, the tube reading should be corrected by multiplying the
reading by the prescribed correction factor.


Sampling time
A waiting time for 100 ml (or 50 ml for half strokes) to be sampled in the
detector tube after the handle of the Model GV-100 Gas Sampling Pump is
fully (or half way for 50 ml) pulled out. When you pump more than once
(n times), the waiting time for you to read the tube, that is, the measuring
time is:
Measuring time = sampling time x n.


Detecting limit
The lower limit of the substance concentration that the detector tube can
detect. This minimal concentration can be recognized by a slight color change
at the entrance of the detecting layer. This value is followed by the parenthesized
number of pump strokes required for measuring this concentration.


Color change
Indicates how the detecting layer of the detector tube will change its color by the
reaction with the target substance. This is shown in the form of:

Original color Changed color


Reaction principle
The chemical reaction of the target substance with the reagent(s) in the
detector tube is briefly stated.


Coefficient of Variation
An indicator of the accuracy of the detector tube. It represents how the
tube indications may deviate from their mean value in percentage:
Coefficient of Variation= Standard devlation () x 100 ( % )

Mean value ()


Shelf life
The period that Gastec will warrant the quality of the detector tubes,
provided that they are stored under the prescribed conditions


Corrections for temperature & humidity
For detector tubes whose indications are affected +/- 10 % or more by the
fluctuation of temperature or humidity, the tube readings should be corrected.
Whether or not such corrections are necessary are indicated here.
The correction data, if necessary, is provided in the instruction sheets
provided with the detector tubes.


Storage condition
To keep the high quality of Gastec detector tubes, it is necessary to store them
in a cool and dark place. It is recommended to store the tubes in the refrigerator,
i.e, 0 to 10oC(32 to 50oF) even if the tube labels describes cool and dark place.



Possible coexisting substances and their interferences
Substances that are liable to coexist with the target substance and their
influences on the tube indications are listed here. The column "Concentration"
Iists the lowest concentration that may affect the indication +/-10 % or more,
or the highest concentration that is assured of no influence to such extent.
These concentration levels are expressed either as quantitative ratios of
interferents to the target substance (e.g., 1/5, 2 times)or concentrations
of interferents themselves (e.g., 3%, 500ppm).Where, reads"equal to
or higher than" and reads "equal to or lower than" .The presumed influence
by coexistence is given in the column "Interference" where the " + " sign suggests
10% or higher indication, the " - " sign expresses - 10% or lower indication, or
"No"means noinfluence. "Bleaching" means that this interferent will cause the
reaction colorto be pale. For your reference, the column "Changes color by itself to"
is givento show how the interferents will change the color of the detecting layer if
they exist without the presence of the target gas. "No" represents that no color
change will be observed. The table of this interference gases primarily expresses
the interference of each coexisting gas in the gas concentration range, equivalent
to the gas concentration by some of the other coexisting gases or vapors mentioned
from the main purposes of using this detector tube. Therefore, the test result may be
given positive result by the other substance not listed in the table. For more precise
information is needed, please contact us or our distributors in your territory.


Other substance (s) measurable with this detector tube
Some detector tubes have high sensitivities to several other substances
and can be used to measure those concentrations. If this is the case, the
names of such substances, the correction methods of the tube readings
(whether by using a correction scale or a correction factor), the numbers
of pump strokes and the measuring ranges are listed. For detector tubes
that perform qualitative analysis, the title of this item is read as "Substances
measurable with this detector tube."


Calibration gas generation
The method of generating the calibration gas that is used for calibrating
the detector tube or testing its accuracy.


Threshold limit values and explosive range
Some substances may be hazardous to health or dangerous to life
depending on their concentrations or the duration of exposure, or may
be combustible or explosive. For detector tubes for measuring those
substances, the threshold limit values based upon the recommendations
of the American Conference of Governmental Industrial Hygienists
(ACGIH), as well as the explosive ranges are presented for your reference.


TLV-TWA :Threshold Limit Value-Time-Weighted Average
The time-weighted average concentration for a normal 8-hour
workday or 40-hour workweek, to which nearly all workers may
be repeatedly exposed, day after day, without adverse effect.


TLV-STEL: Threshold Limit Value-Short-Term Exposure Limit
The maximum concentration, to which workers can be exposed
for a period of not longer than 15 minutes continuously without
suffering from:
( I ) irritation,
( 2 ) chronic or irreversible tissue damage, or
( 3 ) narcosis of sufficient degree to increase the likelihood of
accidental injury, impair self-rescue, or materially reduce work
efficiency, and provided that the daily TLV-TWA is not exceeded.


TLV-C:Threshold Limit Value-Ceiling
The concentration that should not be exceeded during any
part of the working exposure. In conventional industrial
hygiene practice if instantaneous monitoring is not feasible,
the TLV-C can be assessed by sampling over a 15 minute
period except for those substances that may cause immediate
irritation when exposures are short.


Explosive range :
The range of concentrations of the substance in which its gas
or vapor mixed with air will be explosive. Concentrations are
expressed by the percentage ( % ) of the substance in the
mixed air.
 
 
 
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