标准摘要
[中文适用范围]： 本国际标准规定了用于鼓式车轮制动缸端盖的模压橡胶罩的性能测试。 这些靴子可防止灰尘和湿气进入，从而导致腐蚀并损害车轮制动操作。 本国际标准适用于普通和增强插入类型的防护罩，用于使用符合 ISO 4925 的流体安装在轮缸中。 它不包括与橡胶化合物的化学成分、拉伸强度或制动伸长率相关的要求。 它不包括橡胶与插入式增强材料的粘合强度。 这些靴子中使用的橡胶材料应适合在 - 40 ℃ 至 + 120 ℃ 的温度范围内运行。 [外文原描述]： ISO 4927:2005 specifies performance tests for moulded rubber boots used at end closures on drum type wheel brake cylinders. These boots prevent the entrance of dirt and moisture which could cause corrosion and otherwise impair wheel brake operation. ISO 4927:2005 is applicable to boots of both plain and reinforcement insert types, for fitting in wheel cylinders using a fluid in accordance with ISO 4925. It does not include requirements relating to chemical composition, tensile strength or elongation at brake of the rubber compound; it does not cover the strength of adhesion of rubber to the reinforcement in the insert type. The rubber material used in these boots shall be suitable for operation in a temperature range of -40 °C to +120 °C.
英文名称Road vehicles — Elastomeric boots for cylinders for drum type hydraulic brake wheel cylinders using a non-petroleum base hydraulic brake fluid (Service temperature 120 degrees C max.)