ANNEX IIIMETHOD OF MEASUREMENT OF AIRBORNE NOISE EMITTED BY EQUIPMENT FOR USE OUTDOORS
PART BNOISE TEST CODES FOR SPECIFIC EQUIPMENT
11.CONCRETE OR MORTAR MIXERS
Operating conditions during test
Test under load
The mixing device (drum) shall be filled to its rated capacity with sand of granulation 0 to 3 mm, the humidity shall be 4 to 10 %
The mixing device shall be operated at least at the rated speed
Period of observation
The period of observation shall be at least 15 seconds