PN-EN ISO 11691-2021-05 E
Acoustics -- Measurement of insertion loss of ducted silencers without flow -- Laboratory survey method (ISO 11691:2020)
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PN-EN ISO 11691-2021-05 E
Standard No.
PN-EN ISO 11691-2021-05 E
Release Date
2021
Published By
PL-PKN
Replace By
PN-EN ISO 11691-2009 E
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