GB/T 31004.3-2014
ActiveAcoustics―Measurement of sound insulation in buildings and of building elements using sound intensity―Part 3: Laboratory measurements at low frequencies
声学 建筑和建筑构件隔声声强法测量 第3部分：低频段的实验室测量
Application Summary AI generated
This standard specifies a laboratory method for measuring the sound insulation of building elements, such as walls and floors, specifically at low frequencies (typically 50-315 Hz). It is applied in acoustics testing laboratories to evaluate the low-frequency sound reduction performance of building components, which is critical for assessing noise transmission in lightweight constructions and for product certification in the construction industry.
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