NEN EN ISO 2151 : 2008
Current
The latest, up-to-date edition.
ACOUSTICS - NOISE TEST CODE FOR COMPRESSORS AND VACUUM PUMPS - ENGINEERING METHOD (GRADE 2)
01-12-2013
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Sound power level determination
4.1 General
4.2 Uncertainty
4.3 Test arrangement
5 Emission sound pressure level determination at the work
station
5.1 Work station
5.2 Determination of L[pWSA] from L[WA]
5.3 Method for determination of L[pWSA] when L[WA] is not
to be determined
6 Mounting, loading and operating conditions of compressor
or vacuum pump during noise tests
6.1 General
6.2 Mounting
6.3 Loading and operating conditions
7 Test report
8 Declaration and verification of noise emission values
Annex A (informative) Example test reports
Annex B (informative) Model form for declared noise emission
values
Annex C (normative) Parallelepiped measurement surface
Annex D (normative) Hemispherical measurement surface
Annex E (informative) Examples of reference box for different
machines
Annex ZA (informative) Relationship of this document with EC
Directive
Bibliography
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