ISO 4254-8:2018旨在与ISO 4254-1一起使用，规定了农业固体肥料施用的安装式、半安装式、牵引式或自推进式肥料分配器的设计和建造的安全要求及其验证，且仅由一个操作员使用，例如全宽固体肥料分配器、固体肥料播撒器、，带有振荡管和管路分配器的分配器，以及由辅助发动机驱动的固体肥料分配器。此外，它还规定了制造商提供的安全工作实践（包括剩余风险）信息的类型。 ISO 4254-8:2018规定了固体肥料分布器按预期使用时，以及在制造商可预见的条件下（见第4条），与固体肥料分布器相关的所有重大危险（如附录A所列）、危险情况和事件，但以下情况引起的危险除外: -工作区照明不足； -驾驶员/操作员位置的能见度不足； -座位不足； -行驶功能（驱动、制动等）； -翻滚； -将肥料装入机器的设备； -辅助发动机； -除防护装置的强度要求外，用于动力传输的活动部件。 ISO 4254-8:2018既不适用于专业服务人员进行的维护或维修，也不适用于环境危害（噪音除外）。 ISO 4254-8:2018不适用于以下情况: -组合式种子和肥料钻孔机，其形成土壤沟槽并在所述沟槽中沉积肥料； -分发颗粒状杀虫剂的机器； -行人控制的分销商； -背包经销商。 ISO 4254-8:2018不适用于发布日期之前生产的固体肥料分配器。 当本文件的要求不同于ISO 4254-1中规定的要求时，本文件的要求优先于ISO 4254-1中针对根据本文件规定设计和制造的机器的要求。

ISO 4254-8:2018, intended to be used together with ISO 4254？1, specifies the safety requirements and their verification for the design and construction of mounted, semi-mounted, trailed or self-propelled fertilizer distributors for solid fertilizer application in agriculture and to be used by one operator only, e.g. full width solid fertilizer distributors, solid fertilizer broadcasters, distributors with oscillating tube and line-distributors, as well as solid fertilizer distributors driven by an auxiliary engine. In addition, it specifies the type of information on safe working practices (including residual risks) to be provided by the manufacturer. ISO 4254-8:2018 deals with all the significant hazards (as listed in Annex A), hazardous situations and events relevant to solid fertilizer distributors, when they are used as intended and under the conditions foreseeable by the manufacturer (see Clause 4), excepting the hazards arising from: - inadequate lighting of working area; - inadequate visibility from drivers/operators position; - inadequate seating; - travelling functions (drive, braking etc.); - rolling over; - equipment for loading fertilizer into the machine; - an auxiliary engine; - moving parts for power transmission except for strength requirements for guards. ISO 4254-8:2018 is neither applicable to maintenance or repairs carried out by professional service personnel nor to environmental hazards (except noise). ISO 4254-8:2018 is not applicable to the following: - combined seed and fertilizer drills which create a soil trench and deposit fertilizer in said trench; - machines for distributing granulated pesticides; - pedestrian controlled distributors; - knapsack distributors. ISO 4254-8:2018 is not applicable to solid fertilizer distributors which are manufactured before the date of its publication. When requirements of this document are different from those which are stated in ISO 4254？1, the requirements of this document take precedence over the requirements of ISO 4254？1 for machines that have been designed and built according to the provisions of this document.