CEN/TS 1793-4 : 2003

Superseded

Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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ROAD TRAFFIC NOISE REDUCING DEVICES - TEST METHOD FOR DETERMINING THE ACOUSTIC PERFORMANCE - PART 4: INTRINSIC CHARACTERISTICS - IN SITU VALUES OF SOUND DIFFRACTION

Available format(s):

Superseded date: 01-03-2015

Language(s):

Published date: 12-01-2013

Publisher: Comite Europeen de Normalisation

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Table of Contents - (Show below) - (Hide below)

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions and symbols
   3.1 Definitions
   3.2 Symbols
4 Diffraction index difference measurements
   4.1 General principle
   4.2 Dimensions and specifications
   4.3 Positions of the sound source
   4.4 Position of the microphones
   4.5 Free-field measurements
   4.6 Measured quantity
   4.7 Measuring equipment
   4.8 Data processing
   4.9 Positioning of the measuring equipment
   4.10 Diffraction index difference
   4.11 Single-number rating of diffraction index
        difference DL[delta][DI]
   4.12 Sample surface and meteorological conditions
   4.13 Measuring procedure
   4.14 Test report
Annex A (Informative) Definition and usage of the MLS
                      signal
Annex B (Informative) Indoor measurements for product
                      qualification
Annex C (Informative) Bibliography

Abstract - (Show below) - (Hide below)

Describes a test method for determining the intrinsic characteristics of sound diffraction of added devices installed on the top of traffic noise reducing devices.

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Committee	TC 226
Development Note	To be read in conjunction with EN 1793-1, EN 1793-2, EN 1793-3 and EN TS 1793-5. (05/2004)
Document Type	Standard
ISBN
Pages
Published
Publisher	Comite Europeen de Normalisation
Status	Superseded
Superseded By	EN 1793-4:2015

National Adoptions - (Show below) - (Hide below)

Equivalent Standard(s)	Relationship
SN CEN/TS 1793-4 : 2004	Identical
NEN NPR CEN/TS 1793-4 : 2004	Identical
I.S. CEN TS 1793-4:2004	Identical
NBN CEN/TS 1793-4 : 2004	Identical
DIN CEN/TS 1793-4:2004-03	Identical
UNI CEN/TS 1793-4 : 2004	Identical
UNI EN 1793-4 : 2015	Identical

Standards Referenced By This Book - (Show below) - (Hide below)

I.S. EN 16272-4:2016	RAILWAY APPLICATIONS - TRACK - NOISE BARRIERS AND RELATED DEVICES ACTING ON AIRBORNE SOUND PROPAGATION - TEST METHOD FOR DETERMINING THE ACOUSTIC PERFORMANCE - PART 4: INTRINSIC CHARACTERISTICS - IN SITU VALUES OF SOUND DIFFRACTION UNDER DIRECT SOUND FIELD
10/30218982 DC : DRAFT JUNE 2010	BS EN 14388 - ROAD TRAFFIC NOISE REDUCING DEVICES - SPECIFICATIONS
DIN EN 14388:2015-12	ROAD TRAFFIC NOISE REDUCING DEVICES - SPECIFICATIONS
I.S. EN 14388:2015	ROAD TRAFFIC NOISE REDUCING DEVICES - SPECIFICATIONS
14/30296484 DC : 0	BS EN 1793-5 - ROAD TRAFFIC NOISE REDUCING DEVICES - TEST METHOD FOR DETERMINING THE ACOUSTIC PERFORMANCE - PART 5: INTRINSIC CHARACTERISTICS - IN SITU VALUES OF SOUND REFLECTION UNDER DIRECT SOUND FIELD CONDITIONS
BS EN 16272-4:2016	Railway applications. Track. Noise barriers and related devices acting on airborne sound propagation. Test method for determining the acoustic performance Intrinsic characteristics. In situ values of sound diffraction under direct sound field
14/30298590 DC : 0	BS EN 14388 - ROAD TRAFFIC NOISE REDUCING DEVICES - SPECIFICATIONS
UNE-EN 14388:2016	Road traffic noise reducing devices - Specifications
EN 16272-4:2016	Railway applications - Track - Noise barriers and related devices acting on airborne sound propagation - Test method for determining the acoustic performance - Part 4: Intrinsic characteristics - In situ values of sound diffraction under direct sound field
EN 14388:2015	Road traffic noise reducing devices - Specifications
DIN EN 14388 E : 2015	ROAD TRAFFIC NOISE REDUCING DEVICES - SPECIFICATIONS
BS EN 14388:2015	Road traffic noise reducing devices. Specifications

Standards Referencing This Book - (Show below) - (Hide below)

ISO 13472-1:2002	Acoustics Measurement of sound absorption properties of road surfaces in situ Part 1: Extended surface method
EN 1793-3:1997	Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 3: Normalized traffic noise spectrum
EN 60651:1994/A2:2001	SOUND LEVEL METERS (IEC 60651:1979/A2:2000)

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