CO

28

1.250

0.800

NO

30

1.339

0.747

SO₂

64

2.857

0.350

CO₂

44

1.964

0.509

CH₄

16

0.714

1.400

C₂H₄

28

1.250

0.800

C₂H₆

30

1.339

0.747

C₄H₁₀

58

2.589

0.386

C₃H₈

44

1.964

0.509

C₃H₆

42

1.875

0.533

atm

1

1.01325

1013.25

14.69595

bar

0.9869

1

1000

14.50377

hPa

0.0009869

0.001

1

0.0145038

psia

0.0680

0.06894

68.94

1

420

6.091

500

7.251

600

8.202

800

11.603

1 000

14.503

1 160

16.824

1 200

17.404

1 300

18.854

1 485

21.538

1 500

21.755

2 000

29.007

3 000

43.511

3 500

50.763

4 000

58.015

°C

°F

ppm (vol.)

g/m3 ¹⁾

-100

-148.0

0.014

0.0000103

-90

-130.0

0.008

0.000119

-80

-112.0

0.54

0.000565

-70

-94.0

2.57

0.00269

-60

-78.0

10.7

0.011

-55

-67.0

20.8

0.021

-50

-58.0

38.4

0.038

-48

-54.4

49.6

0.049

-46

-50.8

63.0

0.061

-45

-49.0

68.5

0.067

-44

-47.2

80.1

0.076

-42

-43.6

101.5

0.097

-40

-40.0

126.9

0.11

-39

-38.2

137.0

0.12

-38

-36.4

158.0

0.14

-37

-34.6

174.1

0.16

-36

-32.8

197.8

0.17

-35

-31.0

224.0

0.19

-34

-29.2

245.0

0.22

-33

-27.4

274.0

0.24

-32

-25.6

303.4

0.26

-31

-23.8

336.0

0.30

-30

-22.0

374

0.33

-29

-20.2

411

0.37

-28

-18.4

461

0.40

-27

-16.8

511

0.45

-26

-14.3

563

0.49

-25

-13.0

623

0.55

-24

-11.2

689

0.59

-23

-9.4

759

0.66

-22

-7.3

840

0.72

-21

-5.8

922

0.80

-20

-4.0

1 015

0.88

-19

-2.2

1 118

0.96

-18

-0.4

1 231

1.05

-17

+1.4

1 358

1.15

-16

+3.2

1 480

1.26

-15

+5.0

1 630

1.38

-14

+6.8

1 779

1.51

-13

+8.8

1 953

1.65

-12

+10.4

2 140

1.79

-11

+12.2

2 338

1.96

-10

+14.0

2 562

2.14

-9

+15.8

2 798

2.33

-8

+17.6

3 047

2.54

-7

+19.4

3 333

2.76

-6

+21.2

3 632

2.99

-5

+23.0

3 955

3.20

-4

+24.8

4 303

3.51

-3

+26.6

4 690

3.81

-2

+28.4

5 100

4.13

-1

+30.2

5 547

4.47

0

+32.0

6 020

4.84

+1

+33.8

6 480

5.2

+2

+36.8

6 850

5.6

+3

+37.4

7 487

6.0

+4

+39.2

8 022

6.4

+5

+41

8 595

6.8

+6

+42.8

9 216

7.3

+7

+44.6

9 875

7.8

+8

+46.4

10 584

8.3

+9

+48.2

11 318

8.8

+10

+50

12 114

9.4

+11

+51.8

12 935

10.0

+12

+53.6

13 806

10.7

+13

+55.4

14 800

11.4

+14

+57.2

15 796

12.1

+15

+59

16 791

12.8

+16

+60.8

17 885

13.6

+17

+62.6

19 030

14.5

+18

+64.4

20 396

15.4

+19

+66.2

21 641

16.3

+20

+68

23 020

17.3

+21

+69.8

24 502

18.3

+22

+71.6

26 120

19.4

+23

+73.4

27 736

20.6

+24

+75.2

29 477

21.8

+25

+77

31 219

23.0

+26

+78.8

33 209

24.4

+27

+80.6

35 200

25.8

+28

+82.4

37 312

27.2

+29

+84.2

39 551

28.7

+30

+86

41 791

30.3

+31

+87.8

44 322

32.0

+32

+89.6

46 936

33.5

+33

+91.4

49 675

35.6

+34

+93.2

52 539

37.2

+35

+95

55 472

39.6

+36

+96.8

58 639

41.3

+37

+98.6

62 001

43.8

+38

+100.4

65 487

45.8

+39

+102.2

68 973

48.4

+40

+104

71 761

50.7

+42

+107.6

81 049

56.5

+44

+111.2

89 889

62.3

+45

+113

94 527

65.3

+46

+114.8

99 600

68.7

+48

+118.4

110 681

75.5

+50

+122

120 398

82.3

+55

+131

155 472

104.0

+60

+140

196 517

129.5

+70

+158

307 212

196.5

+80

+176

467 662

290.5

+90

+194

691 542

418.0

+100

+212

1 000 980

558.0

Q

30 l/h

1.5

3.4

6

9.4

13.5

18.4

24

30.5

37.6

60 l/h

0.8

1.7

3

4.7

6.8

9.2

12

15.3

18.8

90 l/h

0.5

1.1

2

3.1

4.5

6.1

8

10.2

12.5

120 l/h

0.4

0.9

1.5

2.4

3.4

4.6

6

7.6

9.4

150 l/h

0.3

0.7

1.2

1.9

2.7

3.7

4.8

6.1

7.5

180 l/h

0.3

0.6

1

1.6

2.3

3.1

4

5.1

6.3

210 l/h

0.2

0.5

0.9

1.3

1.9

2.6

3.4

4.3

5.4

240 l/h

0.2

0.5

0.8

1.2

1.7

2.3

3

3.8

4.7

270 l/h

0.2

0.4

0.7

1

1.5

2

2.7

3.4

4.2

300 l/h

0.15

0.34

0.6

0.9

1.4

1.8

2.4

3.1

3.8

FM

UL

ANSI/ISA

Ex zone model

Ex Class Div. model

Miscellaneous

Ex: General regulations

IEC 60079-0

EN 50014/
VDE 0170/0171 - 1

FM 3600

ANSI/ISA-S12.0.01

CSA 79-0-95

Oil immersion "o"

IEC 60079-6

EN 50015/
DIN EN 50015, VDE 0170/0171 - 2

UL2279, Pt.6

ANSI/ISA-S12.26. 01

CSA-E79-6

Pressurized enclosure "p"

IEC 60079-2

EN 50016/
DIN EN 50016, VDE 0170/0171 - 3

FM 3620

(NFPA4 96)

CSA-E79-2

CSA TIL. E 13 A

Powder filling

"q"

IEC 60079-5

EN 50017/
DIN EN 50017, VDE 0170/0171 - 4

UL2279, Pt.5

ANSI/ISA-S12.25. 01

CSA-E79-5

Flameproof

enclosure "d"

IEC 60079-1

EN 50018/
DIN EN 50018, VDE 0170/0171 - 5

FM 3615

UL2279, Pt.1
UL1203

ANSI/ISA-S12.22. 01

CSA-E79-1

CSA C22.2 No. 30

Increased

safety "e"

IEC 60079-7

EN 50019/
DIN EN 50019, VDE 0170/0171 - 6

UL2279, Pt.7

ANSI/ISA-S12.16. 01

CSA-E79-7

Intrinsic safety

"i"

IEC 60079-11

EN 50020/
DIN EN 50020, VDE 0170/0171 - 7

FM 3610

UL2279, Pt.11 UL 913

pr ANSI/ISA-S12.02. 01

CSA-E79-11

CSA C22.2 No. 157

Degree of protection "n"

IEC 60079-15

EN 50021/
DIN EN 50021, VDE 0170/0171 - 8

FM 3611

UL2279, Pt.15

pr ANSI/ISA S12.12. 01

CSA-E79-15

CSA C22.2 No. 213

Encapsulation

"m"

IEC 60079-18

EN 50028/
DIN EN 50028, VDE 0170/0171 - 9

UL2279, Pt.18

ANSI/ISA-S12.23. 01

CSA-E79-18

Zone 0

IEC 60079-26

EN 50284/
DIN EN 50284, VDE 0170/0171 - 12

Electrical

safety

IEC 61010

EN 61010-1/
DIN EN 61010-1, VDE 0411 - 1

ANSI/ISA-82. 02.01

CAN/CSA-C22.2 No. 1010.1

EN 1127

DIN EN 1127-1

Explosive atmospheres - Explosion protection - Part 1: Fundamentals and method

EN 50039

DIN EN 50039,

VDE 0170/0171 - 10

Electrical equipment for hazardous areas; intrinsically-safe electrical systems "i"

EN 13463-1

DIN EN 13 463-1

Non-electrical equipment for use in hazardous areas, Part 1: Fundamental method and requirements

EN 50281-1-1

DIN EN 50281-1-1,

VDE 0170/0171 - 15-1-1

Electrical equipment for use in areas with combustible dust, Part 1-1: Electrical equipment with protection by enclosure

EN 60079-10

DIN EN 60079-10,

VDE 165 Part 101

Electrical equipment for potentially explosive gas atmospheres, Part 10: Division of ?potentially explosive areas

EN 60079-14

DIN EN 60079-14,

VDE 165 Part 1

Electrical equipment for hazardous areas, Part 14: Electrical installations in potentially explosive areas (except underground excavation)

EN 60079-17

DIN EN 60079-17,

VDE 0165 - 10

Electrical equipment for potentially explosive gas atmospheres, Part 17: Testing and maintenance of electrical installations in hazardous areas (except underground excavation)

EN 60950

DIN EN 60950,

VDE 0805

Safety of information technology equipment, including electrical office machines

I

Methane

II A

Acetone
Ethane
Ethyl acetate
Ammonia
Benzene (pure)
Acetic acid
Carbon monoxide
Methane
Methanol
Propane
Toluene

Ethyl alcohol
i-amyl acetate
n-butane
n-butyl alcohol

Petrol
Diesel fuel
Aviation gasoline
Fuel oil
n-hexane

Acetaldehyde
Ethyl ether

II B

Town gas
(Illuminating gas)

Ethylene

II C

Hydrogen

Acetylene

Carbon disulfide