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ISO 3744:1981 PDF
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Acoustics — Determination of sound power levels of noise sources — Engineering methods for free-field conditions over a reflecting plane
ISO 3744:1981
Acoustics — Determination of sound power levels of noise sources — Engineering methods for free-field conditions over a reflecting plane
Edition | 1981 |
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Published Date | 1981 |
Published By | International Standardization Organisation |
Page Count | 25 |