PREN 1793-4 : DRAFT 2014
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
ROAD TRAFFIC NOISE REDUCING DEVICES - TEST METHOD FOR DETERMINING THE ACOUSTIC PERFORMANCE - PART 4: INTRINSIC CHARACTERISTICS - IN SITU VALUES OF SOUND DIFFRACTION
01-03-2015
01-07-2014
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Sound diffraction index difference
measurements
5 Measurement uncertainty
6 Measuring procedure
Annex A (informative) - Indoor measurements
for product qualification
Annex B (informative) - Measurement uncertainty
Bibliography
Defines a test method for determining the intrinsic characteristics of sound diffraction of added devices installed on the top of traffic noise reducing devices.
| Committee |
TC 226
|
| DocumentType |
Draft
|
| PublisherName |
Comite Europeen de Normalisation
|
| Status |
Superseded
|
| Standards | Relationship |
| DIN EN 1793-4:2015-05 | Identical |
| 14/30298593 DC : 0 | Identical |
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