标准摘要
[中文适用范围]： 本文件规定了汽车空调系统中用于循环液体和气体 R1234yf（四氟丙烯）的橡胶或热塑性软管和软管组件的要求。 软管和软管组件的设计方式可限制制冷剂的损失和系统的污染。 工作温度范围为−40 °C 至+125 °C。 由于该应用中软管和接头之间的关键关系，因此规定了使用中使用的接头进行测试的要求。 [外文原描述]： This document specifies the requirements for rubber or thermoplastic hoses and hose assemblies used for circulating liquid and gaseous R1234yf (tetrafluoropropene) in the air-conditioning systems of automobiles. The hoses and hose assemblies are designed in such a way as to restrict losses of refrigerant and contamination of the system. The operational temperature range is −40 °C to +125 °C. Due to the critical relationship between the hose and coupling for this application, a requirement that the coupling to be used in service be used for testing has been laid down.
英文名称Rubber and plastics hoses and hose assemblies for automotive air conditioning — Specification — Part 3: Refrigerant 1234yf