内燃机冷却系统橡胶软管和管件 - 规格

[中文适用范围]： 本国际标准规定了用于内燃机中含有 1,2-乙二醇基冷却剂的加压或非加压冷却回路的直管或预成型橡胶软管和管材的要求，该冷却回路适用于空载质量（定义见 ISO 1176）为 3.5 吨或以下的车辆。此外，本规范还可用作分类系统，使原始设备制造商 (OEM) 能够详细说明特定应用的测试“线路调用”，而这些应用未包含在指定的主要类型中（见附件 D 中的示例）。在这种情况下，软管或管材不会带有显示此 ISO 规范编号的任何标记，但可以详细说明 OEM 自己的识别标记，如其零件图所示。 [外文原描述]： ISO 4081:2016 specifies the requirements for straight or pre-formed rubber hoses and tubing for use in pressurized or unpressurized cooling circuits containing 1,2-ethanediol-based coolants in internal-combustion engines for vehicles with an unladen mass (as defined in ISO 1176) of 3,5 t or less. In addition, this specification may also be applied as a classification system to enable original equipment manufacturers (OEMs) to detail a "line call-out" of tests for specific applications where these are not covered by the main types specified (see example in Annex D). In this case, the hose or tubing would not carry any marking showing this ISO specification number but may detail the OEM's own identification markings as shown on their part drawings.