ANSI/ASA S12.56-2011 声学.利用声压的噪声源声功率级和声能级的测定.采用反射面上方密封测量表面的测量法

标准号：ANSI/ASA S12.56-2011
中文标准名称：声学.利用声压的噪声源声功率级和声能级的测定.采用反射面上方密封测量表面的测量法
英文标准名称：Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Survey method using an enveloping measurement surface over a reflecting plane
标准类型：Z32
发布日期：2011/1/1 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：17.140.01
适用范围：This National Standard specifies methods for determining the sound power level or sound energy level of a noise source from sound pressure levels measured on a surface enveloping a noise source (machinery or equipment) in a test environment for which requirements are given. The sound power level (or, in the case of noise bursts or transient noise emission, the sound energy level) produced by the noise source with frequency A-weighting applied is calculated using those measurements.