ANSI/ASA S1.26-1995 大气吸音的计算方法

标准号：ANSI/ASA S1.26-1995
中文标准名称：大气吸音的计算方法
英文标准名称：Method for Calculation of the Absorption of Sound by the Atmosphere
标准类型：Z32
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：Z32
国际标准分类号：07.060;17.140.01
适用范围：Provides the means to calculate atmospheric absorption losses of sound from any source for a wide range of meteorological conditions. The atmosphere is assumed to be still, homogeneous moist air of normal composition. Non-homogeneous atmospheres may be divided into horizontal layers within which homogeneous conditions may be assumed. Attenuation coefficients for pure-tone sounds are calculated by over ranges of frequency, and the humidity, pressure, and temperature of the atmosphere. For sounds analyzed by fractional-octave-band filters alternative methods are provided.