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EN ISO 3743-1:2009 Standard



#sound #band #octave #source #pressure

This standard is superseded by:
  •   EN ISO 3743-1:2010
  •   This standard is no longer addressed in the last official Journal publication of the "2023-01-09 ". This standard is addressed for the last time in the official journal publication of the "2011-04-08"


    Machinery (MD) Directive (2006/42/EC)

      Last Official Journal reference

    Friday 8th of April 2011


    Acoustics - Determination of sound power levels of noise sources - Engineering methods for small, movable sources in reverberant fields - Part 1: Comparison method for hard-walled test rooms (ISO 3743-1:1994)


    This patt of ISO 3743 specifies a relatively simple en- gineering method for determining the Sound power levels of small, movable noise sources. The measurements are carried out when the Source is in- stalled in a hard-walled test room. A comparison method is used to determine to the octave-band Sound power levels of the Source. The spatial average (octave-band) Sound pressure levels produced by the Source under test are compared to the spatial average (octave-band) Sound pressure levels produced by a reference Sound Source of known Sound power out- put. The differente in Sound pressure levels is equal to the differente in Sound power Ievels if conditions are the same for both sets of measurements. The A-weighted Sound power Ievel is then calculated from the octave-band Sound power Ievels.


    Friday 18th of December 2009


    This standard has been withdrawn on 2011-04-30

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