reduction index - rw weighted standardised level difference – dnt,w weighted standardised impact sound pressure level - l'n,w thermal transmittance of partition walls - u data mapesilent includes a comprehensive database of materials and components, and their relative performance characteristics taken...
reduction index - rw weighted standardised level difference – dnt,w weighted standardised impact sound pressure level - l'n,w thermal transmittance of partition walls - u data mapesilent includes a comprehensive database of materials and components, and their relative performance characteristics taken...
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