本文件规定了适用于最大工作压力为0.63 MPa（6.3 bar）和工作温度范围为-25°C至+70°C的橡胶软管和软管组件的湿、干喷砂和喷砂要求。

This document specifies the requirements for rubber hoses and hose assemblies for wet and dry sand and grit blasting, suitable for use up to a maximum working pressure of 0,63 MPa (6,3 bar) and over an operating temperature range of？25 °C to +70 °C.