CGA P-18包含定位/选址、选择设备、安装、启动、维护和拆除散装惰性气体供应系统的最低要求。散装惰性气体供应系统终止于气源阀，气体或液体供应首先进入供应管线。本标准不适用于二氧化碳系统。有关医疗设施散装惰性气体系统的其他要求，请参见CGA M-1《医疗设施医用气体供应系统标准》（美国国家标准）、NFPA 55《压缩气体和低温流体规范》和NFPA 99《医疗设施规范》。散装二氧化碳系统要求见NFPA 55和CGA G-6.1《消费场所绝缘液体二氧化碳系统标准》。

CGA P-18 contains minimum requirements for locating/siting, selecting equipment, installing, starting up, maintaining, and removing bulk inert gas supply systems.The bulk inert supply system terminates at the source valve where the gas or liquid supply first enters the supply line.This standard does not apply to carbon dioxide systems. For additional requirements on bulk inert gas systems at health care facilities, see CGA M-1, Standard for Medical Gas Supply Systems at Health Care Facilities (an American National Standard), NFPA 55, Compressed Gases and Cryogenic Fluids Code, and NFPA 99, Health Care Facilities Code. Bulk carbon dioxide system requirements are found in NFPA 55 and CGA G-6.1, Standard for Insulated Liquid Carbon Dioxide Systems at Consumer Sites.