本文件规定了标称尺寸为6.3至51的地下煤矿用钢丝增强软管和软管组件的要求，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+120°C； -ISO 6743-4中定义的水基流体HFC、HFAE、HFAS和HFB，温度范围为-40°C至+70°C； -温度在0°C至+70°C之间的水。 在这些温度范围的极端或超出这些温度范围的情况下运行可能会严重缩短软管的使用寿命。这些软管不适用于含有蓖麻油或酯基的液体。

This document specifies requirements for wire-reinforced hoses and hose assemblies for underground coal mining applications of nominal sizes 6,3 to 51 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 +120 °C; — water-based fluids HFC, HFAE, HFAS and HFB as defined in ISO 6743-4 at temperatures ranging from？40 °C to +70 °C; — water at temperatures ranging from 0 °C to +70 °C. There is a possibility that operation at the extremes of or outside these temperature ranges materially reduce the life of the hose. These hoses are not suitable for use with fluids that have a castor oil or ester base.