ISO/TC 43/SC 1
| Projekta Nr. | ISO 13472-1:2002 |
|---|---|
| Nosaukums | <p>This part of ISO 13472 describes a test method for measuring <i>in situ </i>the sound absorption coefficient of road</p> <p>surfaces as a function of frequency in the range from to .</p> <p>Normal incidence is assumed. However, the test method can be applied at oblique incidence although with some</p> <p>limitations (see annex F). The test method is intended for the following applications:</p> <p>— determination of the sound absorption properties of test tracks according to ISO 10844, with limitations, and</p> <p>other similar standards;</p> <p>— determination of the sound absorption properties of road surfaces in actual use;</p> <p>— comparison of sound absorption design specifications of road surfaces with actual performance data of the</p> <p>surface after completion of the construction work.</p> <p>The complex reflection factor can also be determined by this method.</p> |
| Reģistrācijas numurs (WIID) | 35387 |
| Darbības sfēra | <p>This part of ISO 13472 describes a test method for measuring <i>in situ </i>the sound absorption coefficient of road</p> <p>surfaces as a function of frequency in the range from to .</p> <p>Normal incidence is assumed. However, the test method can be applied at oblique incidence although with some</p> <p>limitations (see annex F). The test method is intended for the following applications:</p> <p>— determination of the sound absorption properties of test tracks according to ISO 10844, with limitations, and</p> <p>other similar standards;</p> <p>— determination of the sound absorption properties of road surfaces in actual use;</p> <p>— comparison of sound absorption design specifications of road surfaces with actual performance data of the</p> <p>surface after completion of the construction work.</p> <p>The complex reflection factor can also be determined by this method.</p> |
| Statuss | Atcelts |
| ICS grupa | 17.140.30 93.080.20 |