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Overview EN ISO 11691:2020 - Acoustics: Measurement of insertion loss of ducted silencers without flow (laboratory survey method) specifies a laboratory substitution method to measure the insertion l…
1 Scope 1.1 General This International Standard specifies a laboratory substitution method to determine the insertion loss without flow of ducted, mainly absorbent, circular and rectangular silencers…
Overview ISO 11691:2020 - Acoustics - Measurement of insertion loss of ducted silencers without flow - Laboratory survey method - specifies a laboratory substitution method to determine the insertion…