AS ISO 6396:2020 pdf free.Earth-moving machinery—Determination of emission sound pressure level at operator's position—Dynamic test conditions. 6.3.3 Microphone mounting The microphone can conveniently be mounted on a frame or on the helmet, or on a shoulder harness worn by the operator. 6.3.4 Microphone vibration precautions Care shall be taken to isolate the microphone from vibrations which could affect the measurements....
