GB/T 24140-2009 in English

《GB/T 24140-2009内燃机空气和真空系统用橡胶软管和纯胶管 规范》由TC35（全国橡胶与橡胶制品标准化技术委员会）归口，TC35SC1（全国橡胶与橡胶制品标准化技术委员会软管分会）执行，主管部门为中国石油和化学工业联合会。
本标准规定了供内燃机的各种空气和真空系统用的橡胶软管和纯胶管的要求。本标准不适用于卡车和拖车用直接动力制动软管,也不适用于客舱的进气口和导风用软管。本标准规定的最高温度的软管通常用在涡轮增压器系统。所有的软管当温度降到-40 ℃时仍可使用。

Scope

This standard specifies the requirements for rubber hoses and pure rubber hoses for various air and vacuum systems of internal combustion engines. This standard does not apply to direct power brake hoses for trucks and trailers, nor does it apply to air intake and air guide hoses for passenger compartments. Hoses with the highest temperatures specified in this standard are typically used in turbocharger systems. All hoses can be used down to -40°C.