基于标准EN45545-2-2020，EX类，室外材料，Exterior located products
EX1A，室外车壳，R7；室外车壳的垂直部分和门扇（含油漆/涂料，薄膜和窗户）；Walls of external body shell
EX1B，驾驶室壳体或车辆前端–外部表面，R17；含油漆/涂料，薄膜和窗户；Cab housing or vehicle leading end moulding–External surfaces
EX1C，包括机电设备的外表面，R7；安装在车外；External surfaces of enclosures containing technical equipment
EX2，外车壳顶，R8；含油漆/涂料，薄膜；如满足R7也符合；Roof of external body shell
EX3，外壳下的框架，R7；车身外壳（地板）底架结构的外表面，包括油漆和涂料系统（隔热设计和隔音涂料）和防护性地板镶板。Under frame of external body shell
EX4A，同向室内的室外空气管，R1；Exterior air ducts connected to the interior of the vehicle – interior surface
EX4B，不在EX4A范围内的管道，R7；Exterior ducts
EX5，室外用途的配件，R7；External design features
EX6A，安装在框架内的水箱气罐，R7；Containers mounted in under frame
EX6B，安装在车顶的水箱气罐，R8；Containers mounted on roof
EX7，过道的外表面，R7；Exterior surfaces of gangways
EX8，转向架的结构和零件，R7；Bogie structure and parts
EX9，空气悬架的气囊，R9；Air bags for pneumatic suspension
EX10，驱动部件，车轮和刹车片，R9；Parts of the drive
EX11，橡胶件，R9；Elastomeric tyres (e.g. rubber)
EX12，外部密封条，如窗，门，墙板接缝的密封条，R23；Exterior seals
EX13，灯罩和显示屏外壳，R27；Light diffuser and display screen cover