Explosion-proof equipment plant
GAS |
FORMULA |
DENSITY AIR=1 |
EX GROUP |
LEL % v/v |
TWA 8 h ppm |
STEL 15 min ppm |
| Acetaldehyde | C2H4O | 1,52 | IIA | 4.0 | - | 25 |
| Acetic acid | C2H4O2 | 2.07 | IIA | 4.0 | 10 | 15 |
| Acetone | C3H6O | 2.01 | IIA | 2.5 | 500 | 630 |
| Acetonitril | C2H3N | 1.42 | IIA | 3.0 | 40 | 60 |
| Acetylene | C2H2 | 0.90 | IIC | 2.3 | - | - |
| Acrylonitrile | C3H3N | 1.83 | IIB | 2.8 | 2 | 4 |
| Ammonia | NH3 | 0.59 | IIA | 16.0 | 25 | 40 |
| Arsine | AsH3 | 2.69 | IIC | 3.9 | 0.003 | - |
| Benzene | C6H6 | 2.70 | IIA | 1.2 | 5 | 15 |
| Buta-1,3-diene | C4H6 | 1.87 | IIB | 1.4 | 1 | - |
| Carbon dioxide | CO2 | 1.52 | - | - | 5000 | - |
| Carbon disulphide | CS2 | 1.63 | IIC | 0.6 | 5 | - |
| Carbon monoxide | CO | 0.97 | IIA / IIB | 10.9 | 30 | 75 |
| Chlorine | Cl2 | 2.45 | - | - | 0.5 | 1 |
| Chlorine dioxide | ClO2 | 2.33 | - | - | 0.1 | 0.3 |
| Cyclohexane | C6H12 | 2.91 | IIA | 1.2 | 300 | 380 |
| Dimethyl ether | C2H6O | 1.59 | - | 2.7 | 400 | 500 |
| Ethanol | C2H5OH | 1.59 | IIA / IIB | 3.5 | 1000 | 1300 |
| Ethene | C2H4 | 0.97 | IIB | 2.3 | - | - |
| Ethyl acetate | C4H8O2 | 3.04 | IIA | 2.1 | 300 | 500 |
| Etylene oxide | C2H4O | 1.52 | IIB | 2.6 | 1 | - |
| Fluorine | F2 | 1.31 | - | - | 1 | 2 |
| Formaldehyde | CH2O | 1.04 | IIB | 7.0 | 0.3 | - |
| Formic acid | CHO2 | 1.59 | IIA | 10.0 | 5 | 10 |
| Hydrazine | N2H4 | 1.11 | - | 4.7 | 0.1 | 0.3 |
| Hydrogen | H2 | 0.07 | IIC | 4.0 | - | - |
| Hydrogen Chloride | HCl | 1.26 | - | - | - | 5 |
| Hydrogen Cyanide | HCN | 0.93 | IIB | 5.4 | - | 10 |
| Hydrogen Fluoride | HF | 0.69 | - | 4.75 | - | < 3 |
| Hydrogen Sulphide | H2S | 1.18 | IIB | 4.3 | 0.1 | 15 |
| iso-Propanol | C3H8O | 2.08 | IIA | 2.0 | 200 | 250 |
| Kerosene | (HC) | ~4.5 | IIA | 0.6 | - | - |
| Methacrylic acid | C4H6O2 | 2.97 | IIB | 1.6 | 20 | - |
| Methane | CH4 | 0.55 | I | 4.4 | - | - |
| Methanol | CH4O | 1.11 | IIA | 5.5 | 200 | 250 |
| Methyl Bromide | CH3Br | 3.28 | IIA | 13.5 | 5 | 10 |
| Methyl Chloride | CH3Cl | 1.74 | IIA | 7.6 | 50 | 75 |
| Methyl Ethyl Ketone | C4H8O | 2.49 | IIA | 1.8 | 200 | 300 |
| Methyl metacrylate | C5H8O2 | 3.46 | IIA | 2.1 | 10 | 50 |
| Naphthalene | C10H8 | 4.43 | IIA | 0.9 | 10 | 20 |
| n-Butane | C4H10 | 2.01 | IIA | 1.4 | 800 | 1000 |
| n-Butyl acrylate | C7H12O2 | 4.43 | IIB | 1.2 | 10 | 20 |
| n-Heptane | C7H16 | 3.46 | IIA | 1..1 | 300 | 500 |
| n-Hexane | C6H14 | 2.98 | IIA | 1.0 | 50 | 150 |
| Nitric Oxide | NO | 1.04 | - | - | 25 | - |
| Nitrogen | N2 | 0.97 | - | - | - | - |
| Nitrogen dioxide | NO2 | 1.59 | - | - | 3 | 6 |
| Nitrous oxide | N2O | 1.52 | - | - | 100 | - |
| n-Octane | C8H18 | 3.94 | IIA | 0.8 | 300 | 380 |
| n-Pentane | C5H12 | 2.49 | IIA | 1,4 | 500 | 630 |
| Oxygen | O2 | 1.10 | - | - | - | - |
| Ozone | O3 | 1.66 | - | - | 0.05 | 0.2 |
| Phenole | C6H6O | 3.25 | IIA | 1.3 | 5 | 10 |
| Phosgene | COCl2 | 3.42 | - | - | - | 0.05 |
| Phosphine | PH3 | 1.17 | - | 1.0 | 0.1 | 0.3 |
| Propane | C3H8 | 1.52 | IIA | 1.7 | - | - |
| Propene | C3H6 | 1.45 | IIA | 2.0 | - | - |
| R113 | C2Cl2F4 | 6.47 | - | - | 1000 | 1250 |
| R134a | C2H2F4 | 3.52 | - | - | 1000 | - |
| R21 | CHCl2F | 3.55 | - | - | 10 | - |
| R22 | CHClF2 | 3.99 | - | - | 1000 | - |
| R401A | 53xR22+13xR152a +34xR124 | 3.26 | - | - | 1000 | - |
| R404A | 44xR125+52xR143a +4xR134a | 3.37 | - | - | 1000 | - |
| R407C | 23xR32+25xR125 +52xR143a | 3.00 | - | - | 1000 | - |
| Styrene | C8H8 | 3.60 | IIA | 1.1 | 20 | 100 |
| Sulphur dioxide | SO2 | 2.21 | - | - | 1 | 4 |
| Sulphur hexafluoride | SF6 | 5.04 | - | - | 1000 | 1300 |
| Toluene | C7H8 | 3.18 | IIA | 1.2 | 50 | 100 |
| Trichloroethene | C2HCl3 | 4.54 | IIA | 7.9 | 30 | 45 |
| Turpentine | C10H16 | 4.70 | IIB | > 0.8 | 100 | 150 |
| White Spirit | (HC) | ~4.4 | IIB | 0.8 | - | - |
| Vinyl chloride | C2H3Cl | 2.16 | IIA | 3.8 | 3 | 20 |
| Xylene | C8H10 | 3.67 | IIA | 1.0 | 100 | 150 |
