標準號：ISO 9613-1-1993
中文標準名稱：聲學 戶外聲傳播衰減 第1部分:大氣聲吸收的計算
英文標準名稱：Acoustics; attenuation of sound during propagation outdoors; part 1: calculation of the absorption of sound by the atmosphere
標準類型：A42
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：A42
國際標準分類號：17.140.01
適用范圍：Specifies an analytical method of calculating the attenuation of sound as a result of atmospheric absorption for a variety of meteorological conditions. For pure-tone sounds, attenuation due to atmospheric absorption is specified in terms of an attenuation coefficient as a function of the frequency of the sound (50 Hz to 10 kHz), the temperature (- 20 鳦 to + 50 鳦), the relative humidity (10 % to 100 %) and pressure (101,325 kPa) of the air. Formulae are also given for wider ranges (e.g. ultrasonic frequencies, lower pressure) and for other than pure tones.