液压油与液压软管合成橡胶的兼容性测定

[中文适用范围]： 该文件已被宣布为“稳定”，并且将不再接受货币定期审查。用户负责验证参考资料和持续适用性或技术要求。新技术可能存在。本 SAE 信息报告旨在为液压油制造商和液压设备制造商提供可用于预测非石油基液压油对现有系统中软管弹性体可能产生的相对影响的信息。本文件包含使用代表液压软管材料的标准弹性体配方进行测试所需的信息。所使用的测试方法在 ASTM D471（液体橡胶性能影响的标准测试方法）中定义。测量的物理特性包括体积膨胀、拉伸强度、伸长率、肖氏 A 硬度和 100% 伸长率时的负载。在浸泡后，在72小时、168小时、336小时、504小时、672小时、840小时和1008小时测量性能，并计算百分比作为与未老化性能的变化。测试过程的详细信息在下面的报告中描述。 [外文原描述]： This SAE Information Report is intended to provide the hydraulic oil manufacturer and hydraulic equipment manufacturer with information that can be used predicting the relative impact that non petroleum based hydraulic oils may have on the hose elastomers in the existing system. This document contains the information necessary to perform the tests using standard elastomer formulations, representative of material used in hydraulic hose. The test methods used are defined within ASTM D471, standard test method for Rubber Property—Effect of Liquids. The physical properties measured, are volume swell, tensile strength, percent elongation, shore A hardness and load at 100% elongation. The properties were measured, after immersion, at 72 hours, 168 hours, 336 hours, 504 hours, 672 hours, 840 hours, and 1008 hours and the percent calculated as change from the unaged properties. The detail of the testing process is described in the following report.Cross Reference: ASTMD380,ASTMD471,ISO13226,ISO2393,J343_201201,J343_201605,J517_201302,J517_201612