This document specifies the terms and definitions, classification, requirements, inspection methods, inspection rules, marking, packaging, transportation and storage of high-pressure metal hoses (hereinafter referred to as "hose"). This standard applies to hoses used in pipeline engineering to compensate for pipeline displacement and installation deviation, absorb vibration and reduce noise. The pressure range is 10MPa ~ 35MPa, the nominal size range is DN8 ~ DN300, and the design temperature is -196℃ ~ 400℃ .