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气态制冷剂 1234yf（四氟丙烯）（以下简称 R1234yf）的低压应用的橡胶软管和软管组件的要求。软管和软管组件的设计方式可以减少发动机室和驾驶室之间的振动传递。工作温度范围为 −40 °C 至 +80 °C。由于软管和接头在此应用中的重要性，因此规定了使用中的接头必须进行测试。 [外文原描述]： This document specifies the requirements for rubber hoses and hose assemblies used for low-pressure application of circulating gaseous Refrigerant 1234yf (tetrafluoropropene) (hereinafter referred to as R1234yf) in the air-conditioning systems of automobiles. The hoses and hose assemblies are designed in such a way as to reduce vibration transmission between the engine room and the cabin. The operational temperature range is −40 °C to +80 °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 is laid down.
英文名称Rubber and plastics hoses and hose assemblies for automotive air conditioning — Specification — Part 4: Low vibration transmission type for Refrigerant 1234yf