When the American flag is being displayed with flags of states, cities, schools or pennants of societies on the same halyard, the American flag should always be at the peak with the non-national flags below it. When flying flags on adjacent staffs, the American flag should always be hoisted first and lowered last.
Definition of gas. a material that is shipped in compressed gas cylinders or acts as a gas upon release at normal temperatures and pressure, or is used or handled as a gas, whether or not in strict accordance with the definition of a compressed gas as set forth in Article 9 of the Uniform Fire Code. [SEMI S4-92].
An inert gas is any gas that is not reactive with elements. Like the noble gases an inert gas is not necessarily elemental and are often compound gases. Like the noble gases the tendency for non-reactivity is due to the valence, the outermost electron shell, being complete in all the inert gases.