We will measure and evaluate how loud the standard floor impact is heard in the room below.
Using lightweight and heavyweight impact sound sources (tapping machine and banging machine), the floor being measured is excited to generate impact sound, and the lightweight equivalent sound pressure level and heavyweight maximum sound pressure level are measured directly below. The floor impact sound level is then determined. From these results, the L value is calculated and evaluated.
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■Measurement Method - Floor impact sound level (lightweight LL) JIS-A-1418-1 (method using standard lightweight impact source) - Floor impact sound level (heavyweight LH) JIS-A-1418-1 (method using standard heavyweight impact source) ■Evaluation Method - Floor impact sound level (lightweight LL and heavyweight LH) is evaluated to determine the sound insulation grade L value according to the method specified in JIS-A-1419-2.
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Environmental Research Co., Ltd. is a research and development-oriented company that provides comprehensive consulting services related to investigation, measurement, and analysis of various environmental issues such as asbestos, sick house syndrome, noise, and vibration.
