Project No.ISO 5129:2001
Title<p><b>1.1 </b>This International Standard specifies requirements for instruments and test procedures for the measurement</p> <p>and reporting of sound pressure levels at crew and passenger locations in the interior of aircraft under steady flight</p> <p>conditions. The sound pressure levels may be used to determine various quantities for describing the acoustical</p> <p>environment in the interior of the aircraft. The procedures are intended to ensure uniformity in test results and to</p> <p>provide the basis for determination of measurement uncertainties.</p> <p><b>1.2 </b>This International Standard provides electroacoustical performance specifications for a complete measurement</p> <p>system from a microphone to the readout device. Various individual components of a measurement system may be</p> <p>selected so long as the total measurement system conforms to the specifications of this International Standard.</p> <p><b>1.3 </b>The preferred measurement procedure involves the recording of sound pressure signals with subsequent</p> <p>analysis into one-third-octave band sound pressure levels. Direct measurements may be made of one-third-octaveband</p> <p>sound pressure levels.</p>
Registration number (WIID)32344
Scope<p><b>1.1 </b>This International Standard specifies requirements for instruments and test procedures for the measurement</p> <p>and reporting of sound pressure levels at crew and passenger locations in the interior of aircraft under steady flight</p> <p>conditions. The sound pressure levels may be used to determine various quantities for describing the acoustical</p> <p>environment in the interior of the aircraft. The procedures are intended to ensure uniformity in test results and to</p> <p>provide the basis for determination of measurement uncertainties.</p> <p><b>1.2 </b>This International Standard provides electroacoustical performance specifications for a complete measurement</p> <p>system from a microphone to the readout device. Various individual components of a measurement system may be</p> <p>selected so long as the total measurement system conforms to the specifications of this International Standard.</p> <p><b>1.3 </b>The preferred measurement procedure involves the recording of sound pressure signals with subsequent</p> <p>analysis into one-third-octave band sound pressure levels. Direct measurements may be made of one-third-octaveband</p> <p>sound pressure levels.</p>
StatusStandarts spēkā
ICS group17.140.30
49.020