標準號：ANSI/ASA S12.18-1994
中文標準名稱：室外測量聲壓級的美國國家標準規(guī)程
英文標準名稱：American National Standard Procedures for Outdoor Measurement of Sound Pressure Level
標準類型：Z32
發(fā)布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：Z32
國際標準分類號：17.140.01
適用范圍：Describes procedures for the measurement of sound pressure levels in the outdoor environment, considering the effects of the ground, of refraction due to wind and temperature gradients, and of turbulence. The measured sound pressure levels can be used to calculate sound pressure levels at other distances from the source or to extrapolate to other environmental conditions or to assess compliance with regulation. Describes two methods: 1: general method, outlines conditions for routine measurements; 2: precision method, describes strict conditions for more accurate measurements.