Index of target gases/substances : A
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)
Acetaldehyde
CH3CHO		 92 Acetaldehyde 300-750 1 2* T C 25
10-300 2
5-10 4
92M Acetaldehyde 5-100 1 2* -
2.5-5 2
92L Acetaldehyde 1-20 1 2* T
Acetic acid
CH3CO2H		 81 Acetic acid 50-100 1/2 3 H 10
2-50 1
1-2 2
81L Acetic acid 10-25 1/2 2* T
0.25-10 1
0.125-0.25 2
Acetic anhydride
(CH3CO)2O		 81 Acetic acid 0.6-15 1 3 H 5
81L Acetic acid 0.15-6 1 2* T
Acetone
CH3COCH3		 151 Acetone 0.8-2% 1 3 T 500
0.05-0.8% 2
151L Acetone 4000-12000 1 2* T
50-4000 2
Acetone cyanohydrin
(CH3)2C(OH)(CN)		 12L Hydrogen cyanide 2.88-69 1 2 H C5mg/m3
Acetonitrile
CH3CN		 52 Nitro compounds
(Pyrotectube)		 3-180 1 3 - 20
Acetylene
HCCH		 171 Acetylene 2-4% 1/2 3 T -
0.1-2% 1
0.05-0.1% 2
103 Hydrocarbons
(LowerClass)		 1.8-3.6% 1/2 2 ++
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 2* T C 0.1
3.3-10 4
Acrylicacid
CH2:CHCO2H		 81 Acetic acid 2-50 1 3 H 2
81L Acetic acid 0.45-18 1 2* T
Acrylonitrile
CH2:CHCN		 191 Acrylonitrile 120-360 1 3 +T 2
5-120 2
2-5 4
191L Acrylonitrile 6-18 1 3 +
0.2-6 2
0.1-0.2 4
102L n-Hexane 0.06-1.44% 1 3 -
Aliphatic hydrocarbons 140 Aliphatic hydrocarbons 1000-3000 1/2 2 T  
20-1000 1
6-20 2
Allyl amine 180 Amines 8.5-170 1 3 T  
180L Amines 0.4-8 1 2 T
Allyl Isothiocyanate
CH2:CHCH2NCS		 149 Methyl metacrylate 5-200 2 2 T -
Allyl chloride
CH2:CHCH2Cl		 101L Gasoline(Petrol) 0.1-3.4% 1/2 3 - 1
131L Vinyl chloride 3.2-48 2 2* +T
Amines
RNH2 Calibration 		180 Amines 5-100 1 3 T  
Amines
CH3NH2 Calibration 		180L Amines 0.5-10 1 2 T  
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 T
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 T
n-Amyl acetate
CH3CO2(CH2)4CH3		 147 Amyl acetate 10-200 2 2 T 100
Aniline
C6H5NH2		 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
Aromatic hydrocarbons 120 Aromatic hydrocarbons 100-200 1/2 3 - -
2-100 1
0.4-2 2-5
T:Temp Correction H:Humidity Correction *:Refrigerator Store Mesh:Correction Factor/Chart


Return to previous view  Top