本标准适用于使用液体或蒸气的工业物品的“清洁机器”，即固定式机器和用于自动和手动清洁和预处理过程的相关设备的表面清洁和预处理机器。 注意清洁机器在加热或不加热的情况下进行操作，例如作为浸渍或喷雾或蒸气冷凝过程，其中可以额外使用超声波。这些清洁机可以设计为单区或多区机，室机，滚筒清洗机，低起重机械，圆形机器或隧道（连续）机器。 在本文件的范围内，工业用清洁机被认为是以下设备的组装: - 泵和/或其他机械系统的搅拌，再循环和喷涂清洗液体; 强制通风系统; - 带温度控制的加热系统; - 冷凝系统; - 过滤和分离系统和/或从液体中提取固体颗粒; - 用于待处理物品的输送机和/或处理系统; - 作为清洁机一部分的产品处理系统和往复机; - 控制和/或监控系统; - 液体处理系统 1.2这个欧洲标准

This standard applies to machines for surface cleaning and pre-treatment in the following called "cleaning machines" of industrial items using liquids or vapours, i.e. stationary machines and related equipment for automated and manual cleaning and pre-treatment processes. NOTE Cleaning machines are operated with or without heating, for example as dipping or spraying or vapour condensation process, where additional using of ultrasound is possible. These cleaning machines could be designed as single-zone or multi-zone machine, chamber machines, drum cleaning machine, low lift truck machines, round time machines or tunnel (continuous) machines. To the extent of this document, cleaning machines for industrial items are considered as an assembly of the following equipment: - pump(s) and/or other mechanical system of agitation, recirculation and spraying of cleaning liquid; - forced ventilation system; - heating system with temperature control; - condensation system; - filtration and separation system and/or solid particles extraction from the liquid; - conveyor and/or handling system for the items to be processed; - product handling systems and reciprocators which are part of the cleaning machine; - control and/or monitoring systems; - liquid handling system. 1.2 This European Standard deals with the common significant hazards, hazardous situations and events relevant to cleaning machines for industrial items using liquids or vapours when they are used as intended and under the conditions foreseen by the manufacturer (see clause 4). This part of the standard defines the common safety requirements for all kinds of cleaning machines for industrial items using liquids or vapours and related common devices and should be used in connection with other parts of the EN 12921-series. The specific requirements specified in part 2 and following parts of EN 12921 take precedence over the respective requirements in EN 12921.