ISO 6968:2005规定了能够以规定的底座尺寸和最大质量提升空运货物单元装载装置（ULD）的自行式装载机的功能要求。 ISO 6968:2005的要求是根据公认的假设确定的，这些假设与飞机地面支持设备的正常预期用途有关，这些设备在国际民用机场的坡道上使用，用于处理、维修或维护民用运输飞机；以及大多数国际民用机场匝道区域的环境（地面、坡度、天气、照明、操作规则、员工资格等）条件。

ISO 6968:2005 specifies the functional requirements for a self-propelled loader capable of raising air cargo unit load devices (ULDs) with base dimensions and maximum mass as specified. The requirements of ISO 6968:2005 were determined based on generally recognized assumptions with regard to the normally intended use of aircraft ground support equipment, when used on the ramp of international civil airports in order to handle, service or maintain civil transport aircraft; and with regard to the environmental (surface, slope, weather, lighting, operating rules, staff qualification, etc.) conditions prevailing on the ramp area of the majority of international civil airports.