GB/T 45898.1-2025 Terminal units for medical gas pipeline systems—Part 1:Terminal units for use with compressed medical gases and vacuum

Scope

This document specifies the requirements for gas-dedicated components, mechanical resistance, flow rate, leakage, and pressure drop of terminals, and prevents the interchangeability between different gases and facilities. It applies to terminals used for supplying and processing nitrogen and air to drive surgical instruments, as well as inserts used for connecting dedicated gas connection ports. This document is applicable to medical gas piping systems intended for use in accordance with GB/T 44059.1, pressure regulators with pressure outlets in accordance with GB/T 45897.1, and pressure regulators (VIPR) with pressure outlets in accordance with GB/T 45897.3. It covers terminals used for supplying oxygen, nitrous oxide, medical air, carbon dioxide, oxygen/nitrous oxide mixtures, helium/oxygen mixtures, 93% oxygen (oxygen-enriched air), gases and mixtures classified as medical devices, gases delivered to medical devices or used for medical purposes, as well as terminals used for patient care or medical applications in conjunction with air for driving surgical instruments and nitrogen for driving surgical instruments, and terminals used with vacuum piping systems. This document does not specify the dimensions of inserts or dedicated gas connection ports. This document does not specify the requirements for terminals used in anesthesia gas purification systems (AGSS) as applicable to YY/T 0801.2.

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