ASA S12.9 2016 Part7
$79.63
ANSI/ASA S12.9-2016/Part 7 American National Standard Quantities and Procedures for Description and Measurement of Environmental Sound – Part 7: Measurement of Low-frequency Noise and Infrasound Outdoors in the Presence of Wind and Indoors in Occupied Spaces
| Published By | Publication Date | Number of Pages |
| ASA | 2016 | 42 |
None
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 11 | 1 Scope 2 Normative references |
| 12 | 3 Terms and definitions |
| 13 | 4 Instrumentation 4.1 Instrumentation sets and measurement grades 4.2 Survey-grade LFN 4.3 Survey-grade ILFN 4.4 Precision-grade LFN |
| 14 | 4.5 Precision-grade ILFN 5 Measurement metric 5.1 Basic metric 5.2 Supplemental metric 6 Outdoor measurements 6.1 Measurement types |
| 15 | 6.2 Windscreen selection |
| 18 | 6.3 Estimation of lowest measurable frequency band |
| 19 | 6.4 Reporting |
| 20 | 7 Indoor measurements 7.1 General 7.2 Winds 7.3 Measurement locations and descriptions |
| 21 | 7.4 Windscreen selection 7.5 Analysis results |
| 22 | 7.6 Reporting |
| 23 | 8 Signal processing techniques |
| 24 | Annex A (informative) Examples of outdoor/indoor measurement testing – unsteady source A.1 Introduction A.2 Possible deviations |
| 26 | A.3 Test results |
| 29 | Annex B (informative) Development of wind-induced noise (WIN) estimates |
| 33 | Annex C (informative) Estimation of sound level spectra at normal above-grade microphone height from ground-plane results |
| 35 | Annex D (informative) Advanced signal processing techniques D.1 Introduction D.2 Low-frequency wind turbine noise |
