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Acoustics — Laboratory measurement procedures for ducted silencers and air-terminal units — Insertion loss, flow noise and total pressure loss
ISO2003ISO 7235:2003
ISO 7235:2003 - Acoustics — Laboratory measurement procedures for ducted silencers and air-terminal units — Insertion loss, flow noise and total pressure loss
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Acoustics — Measurement of insertion loss of ducted silencers without flow — Laboratory survey method
ISO2020ISO 11691:2020
ISO 11691:2020 - Acoustics — Measurement of insertion loss of ducted silencers without flow — Laboratory survey method
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Acoustics — Laboratory measurement procedures for ducted silencers and air-terminal units — Insertion loss, flow noise and total pressure loss