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)
“When committees gather, each member is necessarily an actor, uncontrollably acting out the part of himself, reading the lines that identify him, asserting his identity.... We are designed, coded, it seems, to place the highest priority on being individuals, and we must do this first, at whatever cost, even if it means disability for the group.”
—Lewis Thomas (b. 1913)
“Yet to speak of the whole world as metaphor
Is still to stick to the contents of the mind
And the desire to believe in a metaphor.
It is to stick to the nicer knowledge of
Belief, that what it believes in is not true.”
—Wallace Stevens (1879–1955)