本文件规定了用于运输碳氢化合物、溶剂和化学品的四种热塑性多层（非硫化）软管和软管组件的要求。根据类型，它规定了从25毫米到300毫米的孔径，从0.4兆帕（4巴）到1.4兆帕（14巴）的工作压力和从30摄氏度到150摄氏度的工作温度。 1型软管适用于蒸汽应用。2-4型软管适用于液体应用。 注1:关于层内壁材料的选择，以及与软管和/或软管组件输送的化学品有关的内部螺旋线的任何聚合物涂层，见附录A。 注2:如果考虑将聚合物涂层内部电线与低导电性碳氢化合物或化学品一起使用，则应咨询制造商。 本文件不适用于以下软管和软管组件: -飞机加油（见ISO？1825）； -燃料分配（见ISO？5772）； -油燃烧器（见ISO？6806）； -液化石油气和液化天然气（见ISO？27127）； -消防（见ISO？14557）； -海上液化天然气（见EN？1474-2）； -制冷回路。

This document specifies requirements for four types of thermoplastic multi-layer (non-vulcanized) hoses and hose assemblies for carrying hydrocarbons, solvents and chemicals. It specifies bore sizes from 25？mm to 300？mm, working pressures from 0,4？MPa (4？bar) to 1,4？MPa (14？bar) and working temperatures from？30？°C to 150？°C, according to type. Type？1 hoses are suitable for vapour applications. Types？2 to？4 hoses are suitable for liquid applications. NOTE？1？See Annex？A concerning the selection of the material for the inner wall of layers and any polymeric coating of the internal wire helix related to the chemical(s) to be conveyed by the hoses and/or hose assemblies. NOTE？2？It is intended that the manufacturer be consulted where a polymeric coated internal wire is being considered for use with low conductivity hydrocarbons or chemicals. This document does not apply to hoses and hose assemblies for: — aircraft refuelling (see ISO？1825); — fuel dispensing (see ISO？5772); — oil burners (see ISO？6806); — liquefied petroleum gas and liquefied natural gas (see ISO？27127); — fire fighting (see ISO？14557); — offshore liquefied natural gas (see EN？1474-2); — refrigeration circuits.