ISO 3691-3:2016给出了安全要求及其验证手段，除了ISO 3691-1之外，对于具有垂直非倾斜桅杆的工业卡车: a）具有升降操作员位置的卡车，以及ISO 5053-1中定义的订单 - 采摘卡车，其中升降操作员位置和负载处理装置升起到地面以上1 200mm以上的高度水平; b）如ISO 5053-1中定义的横向和前置堆垛车，设计用于在地面以上升高超过1 200 mm的装载操纵装置行驶，装载操纵装置升高，降低或横向移位，装载或卸载，而卡车正在旅行。 这些卡车设计用于在平稳的水平表面（例如混凝土）上行进在室内，并且可以在使用时被引导，无导向或两者;他们不打算拖或推。 ISO 3691-3:2016不适用于处理两个负载的堆垛车，一个​​在叉上，另一个在支撑臂上，这种类型的卡车被ISO 3691-1覆盖。 它不适用于升降操作员位置高达并包括1 200 mm的卡车，或不适用于叉车高度高达地面以上1 200 mm以上的高架载重的卡车。 它不适用于低

ISO 3691-3:2016 gives safety requirements and the means for their verification, additional to those of ISO 3691‑1, for industrial trucks with a vertical, non-tilting mast: a) those trucks having an elevating operator position, and order‑picking trucks, as defined in ISO 5053‑1, where the elevating operator position and the load‑handling device lifts to a height of more than 1 200 mm above ground level; b) lateral- and front-stacking trucks, as defined in ISO 5053‑1, designed to travel with a load-handling device elevated more than 1 200 mm above ground level, with the load-handling device elevated, lowered or laterally displaced, laden or unladen, while the truck is travelling. These trucks are designed to travel indoors on a smooth, level surface (e.g. concrete) and can be guided, unguided, or both, when in use; they are not intended to tow or push. ISO 3691-3:2016 is not applicable to stacker trucks which handle two loads, one on the forks and the other on the support arms, this type of truck being covered by ISO 3691‑1. It is not applicable to trucks with an elevating operator position up to and including 1 200 mm, or to trucks specifically designed to travel with an elevated load having a fork height up to and including 1 200 mm above ground level. It is not applicable to low-level order pickers with elevating operator's position up to and including 1 200 mm lift height which can be equipped with an additional load lifting device having a maximum lift height of 1 800 mm from ground level. ISO 3691-3:2016 deals with all significant hazards, hazardous situations, or hazardous events, as listed in Annex A, relevant to the applicable machines when used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer. It does not establish requirements for hazards that can occur when using trucks on public roads or when operating in potentially explosive atmospheres. Regional requirements, additional to the requirements given in this part of ISO 3691, are addressed in ISO/TS 3691‑7 and ISO/TS 3691‑8.