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CGA: Compressed Gas Association, Inc.
CGA, the Compressed Gas Association, is a nonprofit organization that develops and publishes standards related to the equipment and supply chain used in the compressed gas industry. Headquartered near Washington, D.C., United States, CGA standards have been adopted by governmental agencies in the United States and Canada. CGA standards are agreed upon by over 125 contributing member companies across the world. CGA also serves as the administrator for the U.S. TAGs (United States Technical Advisory Group) to ISO/TCs 58, 197 and 220 (International Organization for Standardization/Technical Committee) and to many of the subcommittees for ISO/TC 58. Standards from CGA are available both individually, directly through the ANSI webstore, and as part of a Standards Subscription. If you or your organization are interested in easy, managed, online access to standards that can be shared, a Standards Subscription may be what you need - please contact us at: [email protected] or 1-212-642-4980 or Request Proposal Price.
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CGA P-1-2022
Standard for Safe Handling of Compressed Gases in Containers
This standard is primarily for the users of compressed gases in containers and is based upon accepted good practices. This standard also contains precautions that are applicable to gas suppliers and distributors. It should not be assumed that all applicable safety and security precautions or regulations are contained here.
CGA G-5.5-2026
Standard for Hydrogen Vent Systems - 5th Edition
This publication is intended for personnel who design, install, and maintain hydrogen vent systems. This publication provides design guidelines for hydrogen vent systems used in gaseous and liquid hydrogen systems and provides recommendations for safe operation of these vents. It begins at the discharge port of relief devices and other components (operational venting) that control the release of hydrogen and ends at the point where hydrogen concentration in the atmosphere is below the lower flammable limits. This publication addresses vent system components after pressure relief devices.
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CGA C-6-2026
Standard for Visual Inspection of Steel Compressed Gas Cylinders - 14th Edition
This standard provides cylinder users (requalifiers, owners, fillers, operators, etc.) with criteria to accept, reject, and condemn steel compressed gas cylinders, including cylinder in bundles. This standard does not cover all circumstances for each individual cylinder type and condition of lading.Suggestions contained in this standard do not apply to cylinders manufactured under specification DOT-3HT, CTC-3HT, or TC-3HTM. Because of the special provisions of this specification, separate recommendations covering service life and standards for visual inspection of these cylinders are contained in CGA C-8, Standard for Requalification of DOT-3HT, CTC-3HT, and TC-3HTM Seamless Steel Cylinders. For cylinders manufactured under specification DOT-8, DOT-8AL, CTC-8, CTC-8AL, CTC-8WC, TC-8WM, or TC-8WAM, see CGA C-13, Standard for Periodic Visual Inspection and Requalification of Acetylene Cylinders. For aluminum alloy cylinders, see CGA C-6.1, Standard for Visual Inspection of High Pressure Aluminum Alloy Compressed Gas Cylinders; CGA C-6.2, Standard for Visual Inspection and Requalification of Fiber Reinforced High Pressure Cylinders; and CGA C-6.3, Standard for Visual Inspection of Low Pressure Aluminum Alloy Compressed Gas Cylinders.Previous editions cited in 29 CFR and 49 CFR.
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CGA G-2.1-2023
Requirements for the Storage and Handling of Anhydrous Ammonia - 7th Edition
This standard is intended to apply to the design, construction, repair, alteration, location, installation, maintenance, and operation of anhydrous ammonia systems including refrigerated ammonia storage systems. This standard does not apply to: Ammonia manufacturing plants; Refrigeration systems where ammonia is used solely as a refrigerant.
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CGA G-7.1-2018
Commodity Specification for Air - Seventh Edition
Describes the specification requirements for air including atmospheric air and air synthesized by blending oxygen and nitrogen in the proper proportions. Atmospheric air contains a large variety of trace constituents. It is impractical to set individual limits for many of these; however, this specification qualifies certain grades of air by limiting the concentrations of specific trace constituents.
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CGA G-4.1-2018
Cleaning Equipment for Oxygen Service - seventh edition
This publication describes the cleaning methods and requirements for equipment used in the production, storage, distribution, and use of liquid and gaseous oxygen to reduce the risk of fire, explosion, or promotion of combustion. Cleaning in accordance with this publication is required for all surfaces in contact with a gas or liquid that has an oxygen concentration greater than 23.5%. Examples of such equipment include stationary storage tanks, road tankers, and rail cars; pressure vessels such as heat exchangers and distillation columns; compressors and pumps; and associated piping, valves, and instrumentation. However, the cleaning methods and requirements are not limited to this equipment. With modifications, these methods may be used for cleaning other oxygen and oxidizer (e.g., fluorine, nitrogen trifluoride, nitrous oxide) service equipment such as cylinders, cylinder valves, cylinder regulators, welding torches, and pipelines where regulatory requirements do not specify cleaning methods.
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CGA C-6.3-2019
Visual Inspection of Low Pressure Aluminum Alloy Compressed Gas Cylinders - Fourth Edition
This publication covers the periodic inspection of aluminum alloy compressed gas cylinders with service pressures of 500 psi (35 bar) or less. This publication may not cover all circumstances for each individual cylinder type or lading. Inspection agencies may find it necessary to amplify these requirements to fit their condition of service if the service is more severe than encountered in transportation
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ANSI/CGA G-13-2024
Storage and Handling of Silane and Silane Mixtures (an American National Standard) (4th Edition)
The purpose of this standard is to prescribe the controls for the installation of silane systems and the recommended methods for storage or transfer of silane or its mixtures from a source of supply to a point of use to provide protection against injury, loss of life, and property damage. This standard governs the installation of systems and sources that are used to store, transfer, or contain silane or silane mixtures. This standard includes guidance for siting, design of equipment, piping and controls, and the fabrication and installation of silane gas storage and closed-use systems. Additional guidance on operational steps associated with the use of silane and silane mixtures as well as fire protection, gas monitoring, ventilation, and related safeguards are provided. The requirements of this standard apply to pure silane and silane mixtures with a silane content greater than 1.4% by volume. A concentration of 1.4% has been chosen as it represents the lower flammability limit (LFL) for this material in air under conditions of normal temperature and pressure. Silane containers include tube trailers, International Organization for Standardization (ISO) modules, cylinder packs with manifolded cylinders, and individual cylinders. Silane mixes containing other hazardous components (e.g., toxics) may have additional requirements beyond this standard. These other requirements shall also be taken into consideration and may exceed requirements in this standard.
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ANSI/CGA M-1-2025
Standard for Medical Gas Supply Systems at Health Care Facilities - 5th Edition
This standard provides the minimum requirements for the design, installation, maintenance, testing, and removal of compressed medical gas supply systems at health care facilities. Strict adherence to current good manufacturing practices shall be taken into account to prevent adulteration of the CMG. This standard applies to all new or upgraded CMG supply systems at health care facilities. It provides direction for compliance with the following national regulations and model codes: Federal Food, Drug, and Cosmetic Act; Title 21 of the U.S. Code of Federal Regulations (21 CFR) Parts 210 to 211; NFPA 55, Compressed Gases and Cryogenic Fluids Code; and NFPA 99, Health Care Facilities Code. Section 5 covers the scope of these regulations and their applicability to CMG supply systems. This standard captures the requirements from these codes along with best practices to provide a comprehensive publication for the process of designing, locating, installing, commissioning, maintaining, testing, removing, and documenting work on a medical gas supply system. In an upgrade to a CMG supply system or in a replacement of a CMG supply system, the complete system shall to comply with the current edition of this standard. Replacement-in-kind of components does not require modifying the system to meet the current edition of this standard. For facilities that are solely intended for use in nonhuman applications (i.e., veterinary, laboratory, pharmaceutical, biotechnology, and similar), the applicability of this standard is to be determined by the CMG supply system designer, authority having jurisdiction (AHJ), and/or other related parties based on facility requirements. This standard does not apply to: piped distribution systems including source valve requirements; manufacture of assemblies such as pressure control manifolds that are manufactured in a supplier's shop and qualified for medical gas service in accordance with the CMG supply system installer’s policies; manufacturing plants or other establishments operated by the supplier or the supplier’s agent for the purpose of storing and refilling portable containers, trailers, mobile supply trucks, or tank cars with medical gases; medical vacuum systems; supply systems that generate CMG on-site; or home health care.
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$258.00
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ANSI/CGA P-18-2020
Bulk Inert Gas Systems - Fifth Edition
This standard contains minimum requirements for locating/siting, selecting equipment, installing, starting up, maintaining, and removing bulk inert gas supply systems.
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$215.00
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