The Compressed Gas Association (CGA) is an American
trade association for the
industrial and
medical gas supply
Medical gas supply systems in hospitals and other healthcare facilities are utilized to supply specialized gases and gas mixtures to various parts of the facility. Products handled by such systems typically include:
*Oxygen
* Medical air
*Nitrou ...
industries.
The CGA publishes standards and practices that codify industry practices. In cases where government regulation is inspecific, CGA documents are considered authoritative. CGA falls into a group of
trade associations whose publications are relied on by government. These groups include the
National Fire Protection Association (NFPA) and
ASTM International
ASTM International, formerly known as American Society for Testing and Materials, is an international standards organization that develops and publishes voluntary consensus technical standards for a wide range of materials, products, systems, an ...
. For example, the state of Montana, the U.S. Army, and
OSHA point to CGA documents for regulatory guidance.
Cylinder valve openings
The CGA provides detail specifications for the outlet
connections of gas containers. They are based on the characteristics of the gas and the storage pressure. flammability, toxicity, state (permanent gas or liquified) and corrosiveness of the gas. These connections are identified by a 3-digit number, such as CGA-555. The range of available connection standards covers the majority of the range of industrial, ultra-pure and medical gases in use, including the medical
pin index safety system,
scuba cylinder
A diving cylinder or diving gas cylinder is a gas cylinder used to store and transport high pressure gas used in diving operations. This may be breathing gas used with a scuba set, in which case the cylinder may also be referred to as a scub ...
valves and
liquefied natural gas for home use.
The standards include:
* CGA V-1 Standard for Compressed Gas Cylinder Valve Outlet and Inlet Connections
* CGA V-7 Standard Method of Determining Cylinder Valve Outlet Connections for Industrial Gas Mixtures
* CGA V-7.1 Standard Method of Determining Cylinder Valve Outlet Connections for Medical Gases
References
External links
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{{Authority control
Business organizations based in the United States
Industrial gases