Engineering & Science Associates Co., Ltd. Gas Detector Tube
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Gas Detector Tube

Precision Gas Detector Tubes
 
 Detector tubes are available to measure more than 200 different kinds of gases and vapours.

For many gases and vapours, there are several concentration ranges available giving you the flexibility to measure

both low and high concentrations without sacrificing precision. 
 

 

ABC DEF GHI JKL MNO PQRS TUV WXYZ

 

Gas to be measured Chemical Formula Detector Tube Name Tubes / box Measuring Range(ppm)
Acetaldehyde CH3CHO 133A ACETALDEHYDE  10 0.004-1.0%
    133SB ACETALDEHYDE  10 5-140ppm
Acetic acid CH3COOH 216S ACETIC ACID  10 1-50ppm
Acetic anhydride (CH3CO)2O 216S ACETIC ANHYDRIDE (+) 10 1-15ppm
Acetone CH3COCH3 102SA ACETONE  10 0.1-5.0%
    102SC ACETONE  10 0.01-4.0%
    102SD ACETONE  10 20-5,000ppm
Acetylene HCCH 101S ACETYLENE  10 50-1,000ppm
Acetylene-Ethylene HC≡CH、H2C=CH2 280S ACETYLENE・ETHYLENE  5 20-300ppm(C2H2),200-2,000ppm(C2H4)
Acrolein CH2=CHCHO 136 ACROLEIN  10 0.005-1.8%
Acrylic acid CH2=CHCOOH 216S ACRYLIC ACID (+) 10 1-50ppm
Acrylonitrile CH2=CHCN 128SA ACRYLONITRILE  10 0.1-3.5%
    128SB ACRYLONITRILE  10 10-500ppm
    128SC ACRYLONITRILE  5 1-120ppm
    128SD ACRYLONITRILE  5 0.2-20ppm
Allyl alcohol CH2=CHCH2OH 184S ALLYL ALCOHOL (+) 10 20-500ppm
Allyl chloride CH2=CHCH2Cl 132SC VINYL CHLORIDE (-) 5 1-40ppm
Ammonia NH3 105SA AMMONIA  10 0.5-10%
    105SB AMMONIA  10 50-900ppm
    105SC AMMONIA  10 5-260ppm
    105SD AMMONIA  10 0.2-20ppm
    105SE AMMONIA  10 1-200ppm
    105SH AMMONIA  10 0.5-30%
    105SM AMMONIA  10 0.1-1.0%
Aniline C6H5NH2 181S ANILINE  10 1-30ppm
Arsine AsH3 121U ARSINE  10 0.05-2ppm
    140SA ARSINE  10 5-160ppm
Benzaldehyde C6H5CHO 190U ETHYL CELLOSOLVE (-) 10 5-70ppm
Benzene C6H6 118SB BENZENE  5 5-300ppm
    118SC BENZENE  10 1-100ppm
    118SD BENZENE  5 0.1-75ppm
    118SE BENZENE  5 0.2-80ppm
Benzyl chloride C6H5CH2Cl 132SC VINYL CHLORIDE (-) 5 1-16ppm
Bromine Br2 114 BROMINE  10 1-20ppm
Bromochloromethane CH2BrCl 157SB METHYL BROMIDE (-) 5 5-400ppm
Bromoform CHBr3 157SB METHYL BROMIDE (-) 5 0.5-20ppm
1-Bromopropane CH3CH2CH2Br 157SA METHYL BROMIDE (+) 5 10-500ppm
    157SB METHYL BROMIDE (-) 5 5-80ppm
2-Bromopropane (CH3)2CHBr 157SA METHYL BROMIDE (+) 5 10-500ppm
    157SB METHYL BROMIDE (-) 5 5-80ppm
1,3-Butadiene CH2=CHCH=CH2 168SA 1,3-BUTADIENE  10 0.03-2.6%
    168SB 1,3-BUTADIENE  10 30-600ppm
    168SC 1,3-BUTADIENE  10 2.5-100ppm
    168SE 1,3-BUTADIENE  5 0.1-10ppm
n-Butane CH3(CH2)2CH3 221SA n-BUTANE  10 0.05-0.6%
tert-Butanol (CH3)3COH 111U ETHYL ACETATE (+) 10 20-500ppm
1-Butanol CH3(CH2)3OH 190U 1-BUTANOL (+) 10 5-100ppm
2-Butanol CH3CH2CH(OH)CH3 189U 2-BUTANOL  10 4-300ppm
Butyl acetate CH3CO2C4H9 138U BUTYL ACETATE  10 10-400ppm
    139SB BUTYL ACETATE (+) 10 0.01-1.0%
Butyl acrylate CH2=CHCO2C4H9 211U BUTYL ACRYLATE (+) 10 5-60ppm
Butyl amine C4H9NH2 105SD N-BUTYL AMINE (+) 10 1-20ppm
Butyl cellosolve C4H9OCH2CH2OH 190U BUTYL CELLOSOLVE (+) 10 10-1,000ppm
Butyl ether (CH3CH2CH2CH2)2O 111U ETHYL ACETATE (+) 10 10-1200ppm
tert-Butyl mercaptan (CH3)3CSH 130U TERT-BUTYL MERCAPTAN  10 0.5-10ppm
Butyl methacrylate CH2=C(CH3)CO2C4H9 111U ETHYL ACETATE (+) 10 20-1000ppm
tert-Butyl methyl ether CH3OC(CH3)3 111U ETHYL ACETATE (+) 10 25-500ppm
Butyric acid CH3CH2CH2COOH 216S BUTYRIC ACID (+) 10 3-60ppm
Carbon dioxide CO2 126B CARBON DIOXIDE  10 0.01-0.7%
    126SA CARBON DIOXIDE  10 0.1-5.2%
    126SB CARBON DIOXIDE  10 0.05-1.0%
    126SF CARBON DIOXIDE  10 100-4,000ppm
    126SG CARBON DIOXIDE  0 0.02-1.4%
    126SH CARBON DIOXIDE  10 1-20%
    126UH CARBON DIOXIDE  10 5-50%
Carbon disulphide CS2 141SA CARBON DISULPHIDE  5 30-500ppm
    141SB CARBON DISULPHIDE  5 0.8-50ppm
Carbon monoxide CO 100 CARBON MONOXIDE  10 5-1000ppm
    106B CARBON MONOXIDE  10 10-1,000ppm
    106C CARBON MONOXIDE  10 10-1,000ppm
    106S CARBON MONOXIDE  10 10-250ppm
    106SA CARBON MONOXIDE  10 5-2,000ppm
    106SC CARBON MONOXIDE  10 1-50ppm
    106SH CARBON MONOXIDE  10 0.1%-2.0%
    106SS CARBON MONOXIDE  10 30-500ppm
    106UH CARBON MONOXIDE  10 0.1-20%
Carbon tetrachloride CCl4 147S CARBON TETRACHLORIDE 5 5-60ppm
Carbonyl sulphide COS 239S CARBONYL SULPHIDE  5 5-60ppm
Chlorine Cl2 109SA CHLORINE  10 1-40ppm
    109SB CHLORINE  10 0.1-10.0ppm
    109U CHLORINE  10 0.05-2ppm
Chlorine dioxide ClO2 116 CHLORINE DIOXIDE  10 1-20ppm
Chlorobenzene C6H5Cl 178SB CHLOROBENZENE  5 1-140ppm
Chloroform CHCl3 152S CHLOROFORM  5 23-500ppm
Chloropicrin Cl3CNO2 172S CHLOROPICRIN  5 0.05-10ppm
Chloroprene CH2=CClCH=CH2 169S CHLOROPRENE  5 0.5-20ppm
m-Chlorotoluene C6H4Cl(CH3) 132SC VINYL CHLORIDE (-) 5 0.5-10ppm
o-Chlorotoluene ClC6H4CH3 132SC VINYL CHLORIDE (-) 5 1-50ppm
p-Chlorotoluene ClC6H4CH3 132SC VINYL CHLORIDE (-) 5 1-50ppm
Cresol C6H4(CH3)(OH) 183U CRESOL (+) 10 0.5-25.0ppm
Crotonaldehyde CH3CH=CHCHO 190U ETHYL CELLOSOLVE (+) 10 2-40ppm
Cumene C6H5CH(CH3)2 111U ETHYL ACETATE (+) 10 20-140ppm
Cyclohexane C6H12 115S CYCLOHEXANE  10 0.01-0.6%
    187S GENERAL HYDROCARBONS (+) 10 50-1400ppm
Cyclohexanol C6H11OH 206U CYCLOHEXANOL  10 5-500ppm
Cyclohexanone C6H10O 197U CYCLOHEXANONE  10 2-100ppm
Cyclohexene C6H10 111U ETHYL ACETATE (+) 10 20-300ppm
Cyclohexylamine C6H11NH2 105SD CYCLOHEXYL AMINE (+) 10 1-20ppm
         
p-Cymene CH3C6H4CH(CH3)2 102SD ACETONE (-) 10 20-200ppm
Decahydronaphthalene C10H18 111U ETHYL ACETATE (+) 10 20-200ppm
n-Decane CH3(CH2)8CH3 111U ETHYL ACETATE (+) 10 5-90ppm
Di-iso-Propyl amine [(CH3)2CH]2NH 105SD DI-ISO-PROPYL AMINE (+) 10 1-16ppm
Di-n-Butyl amine (C4H9)2NH 105SD DI-N-BUTYL AMINE (+) 10 2-20ppm
Di-n-Propyl amine [CH3(CH2)2]2NH 105SD DI-N-PROPYL AMINE (+) 10 1-14ppm
Diacetone alcohol (CH3)2C(OH)CH2COCH3 190U DIACETONE ALCOHOL (+) 10 10-250ppm
Diborane B2H6 242S DIBORANE  10 0.02-5ppm
Dibromomethane CH2Br2 157SB METHYL BROMIDE (-) 5 2.5-40ppm
o-Dichlorobenzene C6H4Cl2 214S 0-DICHLOROBENZENE  10 5-100ppm
p-Dichlorobenzene C6H4Cl2 215S p-DICHLOROBENZENE  10 10-150ppm
1,1-Dichloroethane CH3CHCl2 235SA 1,1-DICHLOROETHANE  5 10-160ppm
1,2-Dichloroethane ClCH2CH2Cl 230SA 1,2-DICHLOROETHANE  5 5-50ppm
2,2-Dichloroethyl ether (ClCH2CH2)2O 223S 2,2-DICHLOROETHYL ETHER  5 2-30ppm
1,1-Dichloroethylene CH2=CCl2 132SC VINYL CHLORIDE (-) 5 1-22ppm
1,2-Dichloroethylene ClCH=CHCl 145SA 1,2-DICHLOROETHYLENE  10 4.2-840ppm
Dichloromethane CH2Cl2 180S DICHLOROMETHANE  5 10-1,000ppm
1,2-Dichloropropane CH3CHClCH2Cl 157SB METHYL BROMIDE (-) 5 20-250ppm
1,3-Dichloropropane ClCH2CH2CH2Cl 132SC VINYL CHLORIDE (-) 5 1-10ppm
    194S 1,3-DICHLOROPROPANE  5 10-500ppm
Dicyclopentadiene C10H12 190U ETHYL CELLOSOLVE (+) 10 2-60ppm
Diethyl amine (C2H5)2NH 222S DIETHYL AMINE  10 1-20ppm
Diethyl benzene C6H4(C2H5)2 111U ETHYL ACETATE (+) 10 10-180ppm
Diisobutyl ketone [(CH3)2CHCH2]2CO 139U DIISOBUTYL KETONE (+) 10 20-1,000ppm
N,N-Dimethyl acetamide (CH3)2NCOCH3 229S N,N-DIMETHYL ACETAMIDE  10 5-70ppm
Dimethyl amine (CH3)2NH 227S DIMETHYL AMINE  10 1-20ppm
N,N-Dimethyl aniline C6H5N(CH3)2 105SD N-N-DIMETHYL ANILINE (+) 10 0.5-9ppm
Dimethyl ether CH3OCH3 123S DIMETHYL ETHER  10 0.01-1.2%
N,N-Dimethyl formamide (CH3)2NCHO 196S N,N-DIMETHYL FORMAMIDE  10 1-30ppm
1,4-Dioxane C4H8O2 119U 1,4-DIOXANE (+) 10 20-500ppm
    139SB 1,4-DIOXANE (+) 10 0.05-2.5%
Disilane Si2H6 240S SILANE (-) 10 1-50ppm
Divinyl benzene C6H4(CHCH2)2 158S STYRENE (+) 10 5-50ppm
Epichlorohydrin OCH2CHCH2Cl 192S EPICHLOROHYDRIN  5 5-50ppm
Ethyl acetate CH3CO2C2H5 111SA ETHYL ACETATE  10 0.1-5.0%
    111U ETHYL ACETATE  10 10-1000ppm
Ethyl acrylate CH2=CHCO2C2H5 211U ETHYL ACRYLATE (+) 10 5-60ppm
Ethyl alcohol C2H5OH 104SA ETHYL ALCOHOL(ETHANOL)  10 0.05-5.0%
Ethyl amine C2H5NH2 227S ETHYL AMINE  10 1-20ppm
Ethyl benzene C6H5C2H5 179S ETHYL BENZENE  10 10-500ppm
Ethyl bromide C2H5Br 157SB METHYL BROMIDE (-) 5 5-400ppm
Ethyl cellosolve C2H5OCH2CH2OH 190U ETHYL CELLOSOLVE  10 5-500ppm
Ethyl cellosolve acetate C2H5OC2H4OCOCH3 190U ETHYL CELLOSOLVE ACETATE (+) 10 5-150ppm
Ethyl ether (C2H5)2O 107SA DIETHYL ETHER  10 0.04-1.4%
    107U DIETHYL ETHER  10 20-400ppm
Ethyl mercaptan C2H5SH 130U ETHYL MERCAPTAN  10 0.5-10ppm
    165SA ETHYL MERCAPTAN  10 1-160ppm
    165SB ETHYL MERCAPTAN  10 2.5-80ppm
Ethyl methacrylate CH2=C(CH3)CO2C2H5 111U ETHYL ACETATE (+) 10 20-500ppm
Ethylene H2C=CH2 108B ETHYLENE  10 0.01-100ppm
    108SA ETHYLENE  10 20-1,200ppm
    108SC ETHYLENE  5 1-200ppm
Ethylene dibromide BrCH2CH2Br 166S ETHYLENE DIBROMIDE  5 1-50ppm
Ethylene glycol HOCH2CH2OH 232SA ETHYLENE GLYCOL  5 20-250mg/m3
    232SB ETHYLENE GLYCOL  5 3-40mg/m3
Ethylene oxide CH2CH2O 122SA ETHYLENE OXIDE  10 0.01-4%
    122SB ETHYLENE OXIDE  5 5-100ppm
    122SC ETHYLENE OXIDE  5 1-15ppm
    122SD ETHYLENE OXIDE  5 0.1-14ppm
    122SL ETHYLENE OXIDE  10 50-2,600ppm
    122SM ETHYLENE OXIDE  10 5-100ppm
Ethylenechlorohydrin ClCH2CH2OH 119U METHYL ALCOHOL(METHANOL) (+) 10 5-300ppm
Formaldehyde HCHO 171SA FORMALDEHYDE  5 20-1,500ppm
    171SB FORMALDEHYDE  5 1-35ppm
    171SC FORMALDEHYDE  10 0.05-4.0ppm
Formic acid HCOOH 216S FORMIC ACID (+) 10 1-50ppm
Furan C4H4O 122SA FURAN (+) 10 0.01-2.0%
Furfural CsH4O2 190U FURFURAL (+) 10 2-60ppm
Furfuryl alcohol C4H3OCH2OH 238S FURFURYL ALCOHOL  10 2-25ppm
         
Gasoline - 110S GASOLINE  10 0.05-0.6%
General hydrocarbons HC 187S GENERAL HYDROCARBONS  10 50-1,400ppm
Heptane CH3(CH2)5CH3 113SB HEPTANE (+) 10 100-2,000ppm
Hydrazine NH2NH2 219S HYDRAZINE  10 0.05-10ppm
Hydrogen H2 137U HYDROGEN  5 0.05-0.8%
Hydrogen chloride HCl 173SA HYDROGEN CHLORIDE  5 20-1,200ppm
    173SB HYDROGEN CHLORIDE  5 0.4-40ppm
Hydrogen cyanide HCN 112SA HYDROGEN CYANIDE  10 0.01-3.0%
    112SB HYDROGEN CYANIDE  10 0.5-100ppm
    112SC HYDROGEN CYANIDE  5 0.3-8ppm
Hydrogen fluoride HF 156S HYDROGEN FLUORIDE  10 0.17-30ppm
Hydrogen Peroxide H2O2 247S Hydrogen Peroxide  10 0.5-10ppm
Hydrogen selenide H2Se 167S HYDROGEN SELENIDE  10 1-600ppm
    242S DIBORANE (+) 10 0.5-20ppm
Hydrogen sulphide H2S 120SB HYDROGEN SULPHIDE  10 0.75-300ppm
    120SC HYDROGEN SULPHIDE  10 0.005-0.16%
    120SD HYDROGEN SULPHIDE  10 1-60ppm
    120SE HYDROGEN SULPHIDE  10 0.5-40ppm
    120SF HYDROGEN SULPHIDE  10 25-2000ppm
    120SH HYDROGEN SULPHIDE  10 0.1-4.0%
    120SM HYDROGEN SULPHIDE  10 0.05-1.2%
    120U HYDROGEN SULPHIDE  10 0.2-6.0ppm
    120UH HYDROGEN SULPHIDE  10 2-20%
    120UT HYDROGEN SULPHIDE  5 2.5-40%
Hydrogen sulphide-Mercaptans H2S,R・SH 282S HYDROGEN SULPHIDE MERCAPTANS  5 1-30ppm(H2S),0.5-5ppm(R.SH)
Iodine I2 117SB NITROGEN DIOXIDE (+) 10 0.7-42ppm
Isobutane (CH3)3CH 113SB ISOBUTANE (+) 10 50-1,200ppm
Isobutyl acetate CH3CO2CH2CH(CH3)2 139SB ISOBUTYL ACETATE (+) 10 0.01-1.4%
    153U ISOBUTYL ACETATE  10 10-400ppm
Isobutyl acrylate CH2=CHCO2CH2CH(CH3)2 211U ISOBUTYL ACETATE (+) 10 5-60ppm
Isobutyl alcohol (CH3)2CHCH2OH 208U ISOBUTYL ALCOHOL  10 5-100ppm
Isobutylene (CH3)2C=CH2 113SB ISOBUTYLENE (+) 10 0.03-2.0%
Isobutyric acid CH3CH2CH2COOH 216S ISOBUTYRIC ACID (+) 10 3-50ppm
Isopentyl acetate CH3CO2(CH2)2CH(CH3)2 188U ISOPENTYL ACETATE  10 10-400ppm
Isopentyl alcohol (CH3)2CH(CH2)2OH 209U ISOPENTYL ALCOHOL  10 5-100ppm
Isophorone C9H14O 197U CYCLOHEXANONE (+) 10 5-80ppm
Isoprene CH2=C(CH3)CH=CH2 190U ISOPRENE (+) 10 1-16ppm
Isopropyl acetate CH3CO2CH(CH3)2 111U ISOPROPYL ACETATE (+) 10 10-1,000ppm
    139SB ISOPROPYL ACETATE (+) 10 0.01-1.2%
Isopropyl alcohol CH3CH(OH)CH3 122SA ISOPROPYL ALCOHOL (+) 10 0.05-2.5%
    150U ISOPROPYL ALCOHOL  10 20-1,200ppm
Isopropyl amine (CH3)2CHNH2 222S DIETHYL AMINE (-) 10 1-12ppm
Isopropyl cellosolve (CH3)2HCO(CH2)2COH 190U ETHYL CELLOSOLVE (+) 10 5-350ppm
Isopropyl ether [(CH3)2CH]2O 111U ETHYL ACETATE (+) 10 30-800ppm
Isopropyl mercaptan (CH3)2CHSH 130U ISOPROPYL MERCAPTAN  10 0.5-10ppm
Isovaleric acid (CH3)2CHCH2COOH 216S ISOVALERIC ACID (+) 10 3-50ppm
n-Hexane CH3(CH2)4CH3 113SA n-HEXANE  10 0.05-1.32%
    113SB n-HEXANE  10 50-1,400ppm
    113SC n-HEXANE  10 5-800ppm
         
Maleic anhydride C4H2O3 216S MALEIC ANHYDRIDE  10 0.2-10ppm
Mercury vapour Hg 142S MERCURY VAPOUR  10 0.1-10mg/m3
Mesityl oxide CH3COCH=C(CH3)2 190U MESITYL OXIDE (+) 10 5-100ppm
Methacrylic acid CH2=C(CH3)COOH 216S METHACRYLIC ACID (+) 10 1-50ppm
1-Methoxy-2-propanol CH3CHOHCH2OCH3 197U CYCLOHEXANONE (-) 10 10-500ppm
Methyl acetate CH3CO2CH3 111SA METHYL ACETATE (+) 10 0.1-3.0%
Methyl acrylate CH2=CHCO2CH3 211U METHYL ACRYLATE  10 2-60ppm
Methyl alcohol CH3OH 119LPG METHANOL IN LP GAS  10 100-1000ppmw
    119SA METHYL ALCOHOL(METHANOL)  10 0.05-6.0%
    119U METHYL ALCOHOL(METHANOL)  10 20-1,000ppm
Methyl amine CH3NH2 227S METHYL AMINE  10 1-20ppm
n-Methyl aniline C6H5NHCH3 105SD N-METHYL ANILINE (+) 10 0.5-6.0ppm
Methyl bromide CH3Br 157JS METHYL BROMIDE  10 3-70g/m3
    157SA METHYL BROMIDE  5 10-500ppm
    157SB METHYL BROMIDE  5 0.4-80ppm
Methyl butyl ketone CH3(CH2)3COCH3 237S VINYL ACETATE (-) 10 5-80ppm
Methyl cellosolve CH3OCH2CH2OH 190U METHYL CELLOSOLVE  10 5-500ppm
Methyl cellosolve acetate CH3CO2CH2CH2OCH3 190U ETHYL CELLOSOLVE (+) 10 3-120ppm
Methyl cyclohexane C6H11CH3 113SB METHYL CYCLOHEXANE (+) 10 100-1,600ppm
Methyl cyclohexanol CH3C6H10OH 199U METHYL CYCLOHEXANOL  10 5-200ppm
Methyl cyclohexanone CH3C6H9O 198U METHYL CYCLOHEXANONE  10 2-100ppm
Methyl ethyl ketone CH3COC2H5 122SA METHYL ETHYL KETONE (+) 10 0.05-5.0%
    139SB METHYL ETHYL KETONE  10 0.01-1.4%
    139U METHYL ETHYL KETONE  10 20-1,500ppm
Methyl iodide CH3I 176S METHYL IODIDE  5 2-40ppm
Methyl isobutyl ketone (CH3)2CHCH2COCH3 122SA METHYL ISOBUTYL KETONE (+) 10 0.01-0.6%
    155U METHYL ISOBUTYL KETONE  10 5-300ppm
Methyl isothiocyanate CH3NCS 111U ETHYL ACETATE (-) 10 10-200ppm
Methyl mercaptan CH3SH 130U METHYL MERCAPTAN  10 0.5-10ppm
    164SA METHYL MERCAPTAN  10 5-140ppm
    164SH METHYL MERCAPTAN  10 50-1,000ppm
Methyl methacrylate CH2=C(CH3)CO2CH3 184S METHYL METHACRYLATE (+) 10 10-160ppm
Methyl propyl ketone CH3CO(CH2)2CH3 139U METHYL PROPYL KETONE  10 20-1,500ppm
Methyl styrene CH3C6H4CH=CH2 193S METHYL STYRENE  10 10-500ppm
Mineral spirit - 187S GENERAL HYDROCARBONS (+) 10 2.5-40mg/l
Mineral turpentine   111U ETHYL ACETATE (-) 10 4-200ppm
Monoethanol amine H2NCH2CH2OH 224SA MONOETHANOL AMINE  10 0.5-50ppm
Morpholine C4H9NO 105SD MORPHOLINE (+) 10 2-22ppm
Naphthalene C10H8 153U NAPHTHALENE (+) 10 10-100ppm
Nickel carbonyl Ni(CO)4 129 NICKEL CARBONYL  10 20-700ppm
Nitric acid vapour HNO3 233S NITRIC ACID VAPOUR  10 1-20ppm
Nitric oxide NO+NO2 174A NITROGEN OXIDE/NITROGEN DIOXIDE  5 10-300ppm(NO),1-40ppm(NO2)
    175SA NITROGEN OXIDES  10 20-250ppm
    175SH NITROGEN OXIDES  10 100-2,500ppm
    175U NITROGEN OXIDES  10 0.5-30ppm
Nitrogen dioxide NO2 117SA NITROGEN DIOXIDE  10 20-1,000ppm
    117SB NITROGEN DIOXIDE  10 0.5-30ppm
    117SD NITROGEN DIOXIDE  5 0.1-1.0ppm
Nitrogen monoxide NO 174A NITROGEN OXIDE/NITROGEN DIOXIDE  5 10-300ppm(NO),1-40(NO2)
n-Nonane CH3(CH2)7CH3 111U ETHYL ACETATE (+) 10 5-160ppm
Octane CH3(CH2)6CH3 187S GENERAL HYDROCARBONS (+) 10 100-2,800ppm
Oxygen O2 159SA OXYGEN  5 2-24%
    159SB OXYGEN  5 2-24%
    159SC OXYGEN  5 1.5-24%
Oxygen-Carbon dioxide O2,CO2 281S OXYGEN CARBON DIOXIDE  5 2-10%(O2),1-20%(CO2)
Ozone O3 182SA OZONE  10 50-1,000ppm
    182SB OZONE  10 2.5-100ppm
    182U OZONE  10 0.025-3.0ppm
         
Pentane CH3(CH2)3CH3 113SB PENTANE (+) 10 50-1,000ppm
Pentyl acetate CH3CO2(CH2)4CH3 210U PENTYL ACETATE  10 10-200ppm
Pentyl amine CH3(CH2)3CH2NH2 105SD PENTYL AMINE (+) 10 2-22ppm
Phenol C6H5OH 183U PHENOL  10 0.5-25.0ppm
Phosgene COCl2 146S PHOSGENE  10 0.1-20ppm
Phosphine PH3 121SA PHOSPHINE IN ACETYLENE  10 20-800ppm
    121SB PHOSPHINE IN ACETYLENE  10 5-90ppm
    121SC PHOSPHINE  10 20-1,400ppm
    121SD PHOSPHINE  10 0.25-20.0ppm
    121SH PHOSPHINE  10 100-3,200ppm
    121SS PHOSPHINE  10 200-6,000ppm
    121U PHOSPHINE  10 0.05-2.0ppm
α-Pinene C10H16 158S STYRENE (+) 10 20-300ppm
Propane C3H8 125SA PROPANE  10 0.02-0.5%
1-Propanol CH3CH2CH2OH 190U ETHYL CELLOSOLVE (+) 10 20-300ppm
Propionic acid CH3CH2COOH 216S PROPIONIC ACID (+) 10 3-50ppm
Propyl acetate CH3CO2(CH2)2CH3 139SB PROPYL ACETATE (+) 10 0.01-1.4%
    151U PROPYL ACETATE  10 20-1000ppm
Propyl amine CH3CH2CH2NH2 105SD PROPYL AMINE (+) 10 1-20ppm
Propyl mercaptan CH3CH2CH2SH 130U n-PROPYL MERCAPTAN  10 0.5-10ppm
Propylene CH2=CHCH3 185S PROPYLENE  10 50-1,000ppm
Propylene glycol CH3CH(OH)CH2OH 122SC ETHYLENE OXIDE (-) 5 5-50ppm
Propylene oxide CH3CHCH2O 122SC ETHYLENE OXIDE (-) 5 3-70ppm
    163SA PROPYLENE OXIDE  10 0.05-5.0%
Pyridine C5H5N 105SD PYRIDINE  10 0.5-10ppm
Silane SiH4 240S SILANE  10 0.5-50ppm
Styrene C6H5CH=CH2 158S STYRENE  10 2.5-300ppm
    158SB STYRENE  5 1-100ppm
Sulphur dioxide SO2 103SA SULPHUR DIOXIDE  10 0.1-3.0%
    103SB SULPHUR DIOXIDE  10 0.02-0.3%
    103SC SULPHUR DIOXIDE  10 20-300ppm
    103SD SULPHUR DIOXIDE  10 1-60ppm
    103SE SULPHUR DIOXIDE  10 0.25-10ppm
    103SF SULPHUR DIOXIDE IN FLUE GAS  5 0.02-0.3%
    103SG SULPHUR DIOXIDE IN CARBON DIOXIDE  10 0.1-25ppm
Sulphuric acid H2SO4 244U SULPHURIC ACID  10 0.5-5mg/m3
         
1,1,2,2-Tetrabromoethane CHBr2CHBr2 190U ETHYL CELLOSOLVE (-) 10 4-100ppm
1,1,2,2-Tetrachloroethane CHCl2CHCl2 236SA 1,1,2-TRICHLOROETHANE (-) 5 20-80ppm
Tetrachloroethylene Cl2C=CCl2 135SA TETRACHLOROETHYLENE  10 5-300ppm
    135SB TETRACHLOROETHYLENE  10 0.2-10ppm
    135SG TETRACHLOROETHYLENE  5 0.1-2.0%
    135SM TETRACHLOROETHYLENE  10 50-1,250ppm
Tetraethoxysilane Si(OC2H5)4 243U TETRAETHOXYSILANE  10 5-200ppm
Tetrahydrofuran (CH2)4O 102SA TETRAHYDROFURAN (+) 10 0.2-5.0%
    162U TETRAHYDROFURAN  10 20-400ppm
Tetrahydrothiophene C4H8S 190U ETHYL CELLOSOLVE (+) 10 4-100ppm
Toluene C6H5CH3 124SA TOLUENE  10 10-500ppm
    124SB TOLUENE  10 2-100ppm
    124SH TOLUENE  10 100-3,000ppm
o-Toluidine C6H4(CH3)(NH2) 105SD O-TOLUIDINE (+) 10 2-22ppm
p-Toluidine C6H4(CH3)(NH2) 105SD P-TOLUIDINE (+) 10 2-20ppm
1,1,1-Trichloroethane CH3CCI3 160S METHYL CHLOROFORM(1,1,1-TRICHLOROETHANE)  5 15-400ppm
1,1,2-Trichloroethane Cl2CHCH2Cl 236SA 1,1,2-TRICHLOROETHANE  5 10-100ppm
Trichloroethylene Cl2C=CHCl 134SA TRICHLOROETHYLENE  10 5-300ppm
    134SB TRICHLOROETHYLENE  10 0.2-36.8ppm
    134SG TRICHLOROETHYLENE  10 0.05-2.0%
Trichlorotoluene C6H5CCl3 132SC VINYL CHLORIDE (-) 5 0.2-4ppm
Triethyl amine (C2H5)3N 213S TRIETHYL AMINE  10 1-20ppm
Trimethyl amine (CH3)3N 105SE AMMONIA (+) 10 0.5-100ppm
    222S TRIMETHYL AMINE (+) 10 1-20ppm
1,2,4-Trimethyl benzene C6H3(CH3)3 111U 1,2,4-TRIMETHYL BENZENE (+) 10 20-250ppm
Trimethyl pentane (CH3)3CCH2CH(CH3)2 113SB 2,2,4-TRIMETHYL PENTANE (+) 10 100-4,000ppm
n-Undecane CH3(CH2)9CH3 111U ETHYL ACETATE (+) 10 10-140ppm
Valeric acid CH3(CH2)3COOH 216S N-VALERIC ACID (+) 10 3-70ppm
Vinyl acetate CH3CO2CH=CH2 237S VINYL ACETATE  10 5-120ppm
Vinyl chloride CH2=CHCl 132SA VINYL CHLORIDE  10 0.05-1.0%
    132SB VINYL CHLORIDE  5 5-500ppm
    132SC VINYL CHLORIDE  5 0.1-12.0ppm
         
Water vapour H2O 177SA WATER VAPOUR  10 1.7-33.8mg/l
    177U WATER VAPOUR  10 0.05-2.0mg/l
Xylene C6H4(CH3)2 143SA XYLENE  10 5-1,000ppm
    143SB XYLENE  10 5-200ppm


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