Temperature (˚C)

μair*

μargon

μoxygen

25

18.0

22.00

20.00

50

19.5

23.50

21.50

100

21.8

26.50

24.00

150

24.0

30.00

26.50

100

26.0

33.00

29.00

250

28.0

35.50

31.50

300

30.0

38.00

33.50

350

32.0

40.50

35.00

400

34.0

44.00

36.50