I.S. EN 1793-4:2015
Current
The latest, up-to-date edition.
ROAD TRAFFIC NOISE REDUCING DEVICES - TEST METHOD FOR DETERMINING THE ACOUSTIC PERFORMANCE - PART 4: INTRINSIC CHARACTERISTICS - IN SITU VALUES OF SOUND DIFFRACTION
Hardcopy , PDF
English
01-01-2015
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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.
| DevelopmentNote |
Supersedes I.S. EN CEN TS 1793-4. (04/2015)
|
| DocumentType |
Standard
|
| Pages |
38
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| EN 1793-4:2015 | Identical |
| ISO 13472-1:2002 | Acoustics Measurement of sound absorption properties of road surfaces in situ Part 1: Extended surface method |
| ISO 354:2003 | Acoustics — Measurement of sound absorption in a reverberation room |
| EN 1793-3:1997 | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 3: Normalized traffic noise spectrum |
| IEC 60942:2003 | Electroacoustics - Sound calibrators |
| CEN/TS 1793-5:2003 | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 5: Intrinsic characteristics - In situ values of sound reflection and airborne sound insulation |
| EN ISO 354:2003 | Acoustics - Measurement of sound absorption in a reverberation room (ISO 354:2003) |
| EN 61672-1:2013 | Electroacoustics - Sound level meters - Part 1: Specifications |
| EN 1793-6:2012 | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 6: Intrinsic characteristics - In situ values of airborne sound insulation under direct sound field conditions |
| EN 1793-1:2017 | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 1: Intrinsic characteristics of sound absorption under diffuse sound field conditions |
| IEC 61260:1995 | Electroacoustics - Octave-band and fractional-octave-band filters |
| ISO/IEC Guide 98-3:2008 | Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) |
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