This term shall not refer to action on inanimate surfaces. Cylinder - Generally a compressed gas container having a maximum water capacity of 1,000 lbs. These limits shall be determined at atmospheric temperature and pressure. The force exerted by a gas on its surroundings. The term psia refers to absolute pressure.
Absolute pressure is based on a zero reference point, the perfect vacuum.
The pressure above or below local atmospheric pressure. Therefore, absolute pressure minus local atmospheric pressure equals gauge pressure. Gauge pressure is commonly designated by the abbreviation psig . Handling - Moving, connecting or disconnecting a compressed or liquified gas container under normal conditions of use. Inert gas - A term used to describe a variety of gases which are chemically inactive.