BS EN 1793-1:2017 – TC:2020 Edition
$186.33
Tracked Changes. Road traffic noise reducing devices. Test method for determining the acoustic performance – Intrinsic characteristics of sound absorption under diffuse sound field conditions
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 59 |
This European Standard specifies the laboratory method for measuring the sound absorption performance of road traffic noise reducing devices in reverberant conditions. It covers the assessment of the intrinsic sound absorption performance of devices that can reasonably be assembled inside the testing facility described in EN ISO 354. This method is not intended for the determination of the intrinsic characteristics of sound absorption of noise reducing devices to be installed on roads in non-reverberant conditions. The test method in EN ISO 354 referred to in this European Standard excludes devices that act as weakly damped resonators. Some devices will depart significantly from these requirements and in these cases, care is needed in interpreting the results.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 38 | 1 Scope 2 Normative references 3 Symbols and abbreviations |
| 39 | 4 Test arrangement |
| 44 | 5 Test procedure and evaluation 5.1 Test method |
| 47 | 5.2 Single number rating of sound absorption DLα,NRD 6 Test report 6.1 Expression of results |
| 48 | 6.2 Further information |
| 49 | Annex A (informative)Guidance note on the use of the single number rating DLα,NRD |
| 50 | Annex B (informative)Measurement uncertainty B.1 General B.2 Measurement uncertainty based upon reproducibility data |
| 51 | Annex C (informative)Example test report C.1 Overview |
| 52 | C.2 Test object (example) |
| 53 | C.3 Test situation (example) C.3.1 Test room and test arrangement |
| 54 | C.3.2 Test equipment and test procedures |
| 55 | C.3.3 Test conditions C.4 Test results (example) |
