Projects of ISO/TC 43/SC 1/WG 58

Document number Begin Title Comment
DIN EN ISO 7235 rev 2025-01-29 Acoustics - Laboratory measurement procedures for ducted silencers and air-terminal units - Insertion loss, flow noise and total pressure loss More  Comment 
ISO/CD 7235 2024-12-16 Acoustics - Laboratory measurement procedures for ducted silencers and air-terminal units - Insertion loss, flow noise and total pressure loss More  Comment 

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