SN EN 60068-2-65 : 1994

Committees responsible
National foreword
Foreword
Introduction
1. Object
2. Normative references
3. Definitions, symbols and abbreviations
4. Acoustic environments and requirements for testing
5. Severities
6. Pre-conditioning
7. Initial measurements
8. Testing
9. Intermediate measurements
10. Recovery
11. Final measurements
12. Information to be given in the relevant specification
Tables
1. Tolerances for acoustic measurement
2. Overall sound-pressure level and duration of exposure
A.1 Octave band/room volume relationship
A.2 Reverberation room, ratios of dimensions
A.3 Examples of sound sources with waveforms and typical
     power outputs
A.4 Typical OASPL and exposure durations
Figures
1. Third-octave band spectrum for aeronautical
     applications
2. Octave band spectra for fans
3. Octave band spectrum for noisy industrial machinery
4. Typical microphone arrangement around a specimen
5. Typical locations of microphone check-points (1-6)
     on a fictitious surface around a specimen
6. Typical microphone check-point arrangement around a
     long cylindrical specimen
Annexes
A. Guidance for the test requirements
B. Bibliography
Annex ZA (normative) Other international publications
     quoted in this standard with the reference of the
     relevant European publications

Describes the procedures for conducting tests and for measurement of the sound-pressure levels within the acoustic noise field and considers the need for measuring the vibration responses at specified points on the specimen. Also gives advice for the selection of the acoustic noise environment, sound-pressure level, spectrum, and duration of exposure.