
汽车空调用橡胶和塑料软管及软管组件 - 规范 - 第3部分:制冷剂 Rubber and plastics hoses and hose assemblies for automotive air conditioning — Specification — Part 3:Refrigerant 1234yf
出版:International Organization for Standardization

专家解读视频
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 is laid down. Comment Closes On May 1st of 2020.