What does it mean when equipment, material, or services are shown as "listed"?

When equipment, material, or services are described as "listed," it signifies that they have been identified and published by a recognized organization that the authority having jurisdiction acknowledges as authoritative. This process involves rigorous evaluation and testing to ensure that the items meet specific safety and performance standards, giving a level of assurance to users and regulators that the products are suitable for their intended use in medical gas systems.

This identification allows healthcare facilities and professionals to trust that the items comply with pertinent regulations and standards, which is crucial in maintaining safety and functionality in medical settings. Rather than indicating the condition of the item (as in being new or unused) or its source (such as being locally purchased), the term "listed" primarily pertains to the validation process carried out by competent authorities. Furthermore, while certification labels can indicate compliance, the key aspect of being "listed" is the formal acknowledgment by an authority, which may or may not involve labeling.