Cylinder Markings To Identify Contents
Any cylinder containing any blend of gas other than the standard air content is required by most diving training organizations and some national governments, to be clearly marked. Some organizations, e.g. GUE, argue that it does not make sense to have a permanent marking on a gas tank that can be filled with any gas.
Read more about this topic: Nitrox
Famous quotes containing the words cylinder, identify and/or contents:
“The outline of the city became frantic in its effort to explain something that defied meaning. Power seemed to have outgrown its servitude and to have asserted its freedom. The cylinder had exploded, and thrown great masses of stone and steam against the sky.”
—Henry Brooks Adams (1838–1918)
“The Louvre is a morgue; you go there to identify your friends.”
—Jean Cocteau (1889–1963)
“The permanence of all books is fixed by no effort friendly or hostile, but by their own specific gravity, or the intrinsic importance of their contents to the constant mind of man.”
—Ralph Waldo Emerson (1803–1882)