建筑施工场界噪声测量方法GB12524-90

GB12524-9011.11.21.31.422.12.233.1GB378550dB3.21.2m11.2m3.31m/s5m/s3.44ALeqdB(A)Leq=10lg*[1/Tr0100.1LA(t)dt]...............(1)LA(t)tAdBTs(1)Leq=10lg*[1/nni=1100.1Li]...............(2)nTLiiAdB55.1235.21s20minA8hA5.3()5.410dB(A)10dB(A)2dB34569-3-2-16a.b.c.ALeqA()A3