本欧洲标准规定了与所有类型的塑料和橡胶螺杆挤出机相关的所有重大危害，危险情况和事件，如果按照预期使用且在制造商可预见的误用条件下使用（见第4章）。 本欧洲标准还包括以下进料系统: - 料斗 - 单辊进给; - 双辊送料; - 挤奶机 以及形成挤出机的一部分或附着于挤出机的以下辅助设备: - 换网器 - 熔体/齿轮泵; - 熔体管道和适配器; - 静态混合器 - 挤出机头，使挤出的材料初始形状。 注意测量设备不在本标准的范围内。 本欧洲标准不涉及加工材料造成的危险，并可能导致危险的物质的火灾或释放。 符合本文件的挤出机不被视为压力设备指令97/23/EC中定义的压力容器。 挤出机通常不会产生爆炸性环境。如果处理材料可能导致爆炸性气体，则应适用于旨在用于潜在爆炸性大气（ATEX）的设备上的指令94/9/EC。爆炸危险没有处理

This European Standard specifies all significant hazards, hazardous situations and events relevant to all types of screw extruders for plastics and rubber, when they are used as intended and under conditions of misuse which are foreseeable by the manufacturer (see Clause 4). This European Standard additionally covers the following feeding systems: - hoppers; - single roller feed; - double roller feed; - crammer feeder; and the following ancillary equipment which form part of or are attached to the extruder: - screen changers; - melt/gear pumps; - melt pipes and adaptors; - static mixers; - extruder head that give initial shape to the extruded material. NOTE Metering devices are not covered by this standard. This European Standard does not deal with hazards caused by the processing of materials and which may lead to a risk of fire or release of health hazardous materials. An extruder conforming to this document is not regarded as a pressure vessel as defined in the Pressure Equipment Directive 97/23/EC. Extruders usually do not produce explosive atmospheres. Where materials are processed, which may cause an explosive atmosphere, the Directive 94/9/EC on the Equipment intended for use in Potentially Explosive Atmospheres (ATEX) should be applied. Explosion hazards are not dealt with in this document. This European Standard is not applicable to extruders which are manufactured before the date of its publication as EN.