A.Gases only
B.Gases and wet vapours
C.Gases and dry vapours
D.Gases and dry and wet vapours
E.Gases and dry, wet and super-heated vapours
A.Gases only
B.Gases and wet vapours
C.Gases and dry vapours
D.Gases and dry and wet vapours
E.Gases and dry, wet and super-heated vapours