ISO 6814:2009定义了与林业和相关作业中使用的移动式和自行式机械相对应的术语，并为其分类提供了指导。定义和分类均根据制造商预期的机器最终用途确定。这些术语和定义不包括所有可能的林业和相关作业或机械，也不描述特定的机械，而是作为命名的辅助。 ISO 6814:2009适用于设计用于林业的机器，用于场地准备、种植、收获、加工以及木材和木纤维的运输。它不适用于专门用于锯木厂或木材场的机器、公路运输车辆或航空车辆。

ISO 6814:2009 defines terms corresponding to, and gives guidance for the classification of, mobile and self-propelled machinery used in forestry and related operations. Both the definitions and the classification have been determined according to the end use of the machines as intended by the manufacturer. The terms and definitions do not cover all possible forestry and related operations or machinery, nor do they describe specific machines, but are given as an aid to nomenclature. ISO 6814:2009 is applicable to machines designed for use in forestry for site preparation, planting, harvesting, processing, and the transport of wood and wood fibre. It is not applicable to machines designed to be used exclusively in sawmills or wood yards, to on-highway transport vehicles, or to aerial vehicles.