BS ISO 4869-6:2019 Acoustics. Hearing protectors Determination of sound attenuation of active noise reduction earmuffs

Acoustics
Noise control (acoustic)
Testing conditions
Sound intensity
Protective clothing
Acoustic measurement
Ear muffs
Test equipment
Sound insulation
Acoustic testing
Safety devices
Ear protectors

Link: BS ISO 4869-6:2019 Acoustics. Hearing protectors Determination of sound attenuation of active noise reduction earmuffs
Source: BSI Standards