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31172-2003

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: 31172-2003
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.:Noise of machines. Measurement of emission sound pressure levels at a work station and at other specified positions. Engineering method in an essentially free field over a reflecting plane
:01.10.2005
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  • c=&f2=3&f1=II002016003&l='>3
  • c=&f2=3&f1=II002016003004&l='>34 . . .


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