ISO 14952-4:2003规定了用于准备零件和组件进行精密清洁的粗清洁过程的相关要求。它确定了可用于地面支持设备、运载火箭和航天器的预清洗过程。 粗清洁可去除污染物，如焊缝氧化皮、热处理氧化皮、腐蚀、氧化膜、油、油脂、车间土壤、燃油和积碳。粗清洁被认为是正常的车间过程，通常不需要特殊的环境控制、包装、搬运或储存，超出公认的良好做法。 ISO 14952-4:2003同样适用于地面支持设备、运载火箭和航天器。

ISO 14952-4:2003 provides requirements related to rough-cleaning processes used to prepare parts and components for precision cleaning. It identifies precleaning processes that can be used for ground support equipment, launch vehicles and spacecraft. Rough cleaning removes contaminants such as weld scale, heat-treat scale, corrosion, oxide films, oils, grease, shop soil, fuel and carbon deposits. Rough cleaning is considered a normal shop process and usually does not require special environmental controls, packaging, handling or storage beyond accepted good practice. ISO 14952-4:2003 is applicable equally to ground support equipment, launch vehicles and spacecraft.