GB/T 18490.3-2017

Safety of machinery—Laser processing machines—Part 3:Noise reduction and noise measurement methods for laser processing machines and hand-held processing devices and associated auxiliary equipment (accuracy grade 2)

机械安全 激光加工机 第3部分：激光加工机和手持式加工机及相关辅助设备的噪声降低和噪声测量方法（准确度2级）