对。需要噪声指令。原因是用于室外作业的机械设备,需要单独进行噪声评估(所有的机械设备在说明书中都要做出说明)。
ISO 3746-1995 声学 声压法测定噪声源声功率级 反射面上方采用包络测量表面的简易法
ISO 11202-1995 Acoustics-Noise emitted by machinery and equipment
(u) the following information on airborne noise emissions:
— the A-weighted emission sound pressure level at workstations, where this exceeds 70 dB(A); where
this level does not exceed 70 dB(A), this fact must be indicated,
— the peak C-weighted instantaneous sound pressure value at workstations, where this exceeds 63 Pa
(130 dB in relation to 20 μPa),
— the A-weighted sound power level emitted by the machinery, where the A-weighted emission sound
pressure level at workstations exceeds 80 dB(A).作者: 59779520 时间: 2011-12-21 18:16
measured sound power level &guaranteed sound power level&permissible limit
equipment category: item 32 of annex 1 of 2000/14EC
this is battery powered lawn mower作者: cunliang1213 时间: 2011-12-21 19:25
学习了~~~~~~~