外墙空气隔音检测
检测标准:
ISO 16283-3:2016 Acoustics -- Field measurement of sound insulation in buildings and of building elements -- Part 3: Fa?ade sound insulation
隔声检测主要评价参数:
声压级差:D=L1-L2
标准化声压级差:DnT=D+10lg(T/T0)
式中:L1和L2为声源室和接受室声压级;T为接受室混响时间,T0为参考混响时间,一般取0.5s。
撞击隔声检测
撞击隔声检测标准:
ISO 16283-2:2018 Acoustics -- Field measurement of sound insulation in buildings and of building elements -- Part 2: Impact sound insulation