本SAE标准涵盖了制造用于空气制动系统的非金属管的公制尺寸的最低要求。非增强产品被指定为A型，增强产品被指定为B型。它不打算覆盖在低于-40°C（-40°F）、高于+93°C（+200°F）、高于1.0 MPa（150 psi）的最大工作表压或处于易受电池酸液侵蚀的区域的系统任何部分的管道。该管路旨在用于制动系统中，用于在车辆运行期间在部件之间保持基本固定关系的连接。本标准和SAE J1131涵盖了发生弯曲的安装所需的连续管组件，其范围是对用于此类组件构造的基本直管和管配件连接设定了最低要求。2x 注-由于SAE J1394的所有元素都被合并到SAE J844中，因此不再需要两个单独的文件；因此，SAE J1394将于2005年7月取消。

This SAE Standard covers the minimum requirements for metric sizes of nonmetallic tubing as manufactured for use in air brake systems. Nonreinforced products are designated type A and reinforced products type B. It is not intended to cover tubing for any portion of the system that operates below -40 °C (-40 °F), above +93 °C (+200 °F), above a maximum working gage pressure of 1.0 MPa (150 psi), or in an area subject to attack by battery acid. This tubing is intended for use in the brake system for connections that maintain a basically fixed relationship between components during vehicle operation. Coiled tube assemblies required for those installations where flexing occurs are covered by this standard and SAE J1131 to the extent of setting minimum requirements on the essentially straight tube and tube fitting connections, which are used in the construction of such assemblies. 2x NOTE—As all elements of SAE J1394 are being merged into SAE J844, two separate documents are no longer required; therefore, SAE J1394 will be cancelled in July, 2005.