The Resource for Industry Knowledge

CGA maintains a library of over 350 publications, safety alerts, safety bulletins, technical bulletins, technical reports, training materials, and our Handbook of Compressed Gases. CGA’s positions address safety and technical information related to the manufacture, transportation, storage, transfilling, and disposal of gases (liquefied, nonliquefied, dissolved, and cryogenic); and the containers and valve which hold compressed gases. These publications are developed and maintained by CGA committees.

Decoding the Publication Library

Each CGA publication has a unique alphabetical and numerical identifier.  

The identifiers are either a single letter for standards and guidelines grouped in broad technical categories, or a double letter identifier for helpful technical and educational information presented as alerts, bulletins, position statements, training materials, and reports. 

C = Cylinders 

Publications that address steel, aluminum, and composite cylinders including information on methods of pressure testing, requalification, inspection, marking, change of gas service, internal corrosion, etc.   

E = Equipment  

Publications that address equipment such as hose and hose connections, low pressure pipeline station outlet/regulator inlet connections, regulators, flowmeters, and orifice flow selectors, etc.  

F = Food Gases  

Publications that address food gases and management systems, good manufacturing practices, hazard analysis and risk-based preventative control, qualifying suppliers used by food and beverage gas distributors and manufacturers, analytical validations for food gases, etc.  

G = Gases 

Publications that address gases including acetylene, anhydrous ammonia, sulfur dioxide, oxygen, hydrogen, carbon dioxide, air, nitrous oxide, helium, nitrogen, argon, hydrogen sulfide, silane, nitrogen trifluoride, fluorine, arsine, phosphine, hydrogen selenide, natural gas as well as equipment and processes related to these gases.  

H = Hydrogen 

Publications that specifically address hydrogen and other issues such as cryogenic hydrogen storage, hydrogen fuel technologies, bulk hydrogen supply systems, steam reformer operations, syngas outlet systems, hydrogen pressure swing adsorbers, HYCO plants, etc.  

M = Medical Gases  

Publications that address medical gases including use at a variety of different facilities, design of systems, analytical method validation, quality management systems, changes of grade/product, etc.  

P = Protection & Safe Handling 

Publications that address the safe handling, use, transfilling, and storage of compressed gases in containers, safe practices for air separation units (ASUs) and related processes and components, hazard communication, process safety management, plant integrity management, oxygen deficient atmospheres, container product migration, etc.  

S = Safety Devices  

Publications that address Pressure Relief Devices (PRDs) and other safety devices.   

V = Valves & Valve Connections 

Publications that address many different types of valves, valve outlet and inlet connections, transfer connections, high pressure gas trailer connections, leak detection fluids, marking requirements, torque guidelines, etc.   

PS = Position Statements 

Publications that are used to document CGA’s position on a subject. A PS may be used to communicate an existing position to regulators, code developers, or outside organizations. 

SA = Safety Alerts 

Publications that are used for quick notification of an imminent danger resulting from an incident or a situation known to be potentially hazardous. Alerts are posted to CGA’s website free of charge. 

SB/TB = Safety Bulletins/Technical Bulletins  

Publications that may include enforceable language or provide guidance and are 2 to 3 pages. There is an ongoing effort to incorporate SB/TBs into existing publications or transition to a standard or guideline.  

TM = Training Materials  

Communications intended to teach compliance with or communicate Standards and/or guidance generally targeted to an audience other than safety or technical experts, or those knowledgeable in the subject. Examples of training materials include safety posters, videos, and eLearning modules. 

TR = Technical Reports 

Reports which provide documentation of research or testing completed to verify or establish CGA positions.