工作压力等于或大于70MPa（700bar）的金属或织物增强型橡胶和塑料软管及软管组件.规范

[中文适用范围]： 本文件规定了公称尺寸为 3,2 至 25 的两种类型的增强软管和软管组件的要求，具体取决于最小爆破压力与最大工作压力的关系。 每种类型根据最大工作压力分为几类。 它们适用于： ——ISO 6743-4 中定义的油基液压油 HH、HL、HM、HR 和 HV，温度范围为 -40 °C 至 +100 °C； ——ISO 6743-4 中定义的水基液体 HFC、HFAE、HFAS 和 HFB，温度范围为 0 °C 至 +70 °C； ——温度范围为 0 °C 至 +70 °C 的水。 此类软管和软管组件旨在用于： ——喷水和喷水应用； ——液压应用。 本文件不包括端部配件的要求。 它仅限于软管和软管组件的性能。 注 1：用户有责任与软管制造商协商确定软管与所用流体的兼容性。 注 2：对于带有手动驱动泵的液压千斤顶，可以使用符合 ISO 16301 的软管和软管组件。 [外文原描述]： This document specifies requirements for two types of reinforced hoses and hose assemblies of nominal size from 3,2 to 25, dependent on relation of minimum burst pressure to maximum working pressure. Each type is divided into classes dependent on maximum working pressure. They are suitable for use with: — oil-based hydraulic fluids HH, HL, HM, HR and HV as defined in ISO 6743-4 at temperatures ranging from −40 °C to +100 °C; — water-based fluids HFC, HFAE, HFAS and HFB as defined in ISO 6743-4 at temperatures ranging from 0 °C to +70 °C; — water at temperatures ranging from 0 °C to +70 °C. Such hoses and hose assemblies are intended to be used for: — water jetting and water blasting applications; — hydraulic applications. This document does not include requirements for end fittings. It is limited to the performance of hoses and hose assemblies. NOTE 1 It is the responsibility of the user, in consultation with the hose manufacturer, to establish the compatibility of the hose with the fluid to be used. NOTE 2 For hydraulic jacks with manually driven pumps, hoses and hose assemblies per ISO 16301 can be used.