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Acoustics. Determination of sound power levels of noise sources using sound pressure. Engineering method in an essentially free field over a reflecting plane.
STANDARD published on 1.6.1999
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Designation standards: STN EN ISO 3744
Classification mark: 011604
Catalog number: 13149
Note: WITHDRAWN
Publication date standards: 1.6.1999
SKU: NS-538160
Approximate weight : 48 g (0.11 lbs)
Country: Slovak technical standard
Category: Technical standards STN
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