本规范规定了将安装在认证飞机和盖板、托盘上的货物单元装载装置的最低要求和试验条件，拟与以下类别的飞机装载和约束系统一起使用的网和集装箱:I类-单元装载装置约束符合所有飞行和地面载荷条件，包括99g前紧急着陆条件。II类——所有其他单元负载装置约束。

This specification defines the minimum requirements and test conditions for cargo unit load devices to be installed in certificated aircraft and covers, pallets, nets and containers intended for use with the following classes of aircraft loading and restraint systems:Class I - Unit load device restraint conforms to all flight and ground load conditions including 99g forward emergency landing conditions.Class II - All other unit load device restraints.