ASA S12.53 2011 Part1
$86.13
ANSI/ASA S12.53-2011/Part 1 / ISO 3743-1:2010 (R2016) American National Standard Acoustics – Determination of sound power levels and sound energy levels of noise sources using sound pressure – Engineering methods for small, movable sources in reverberant fields – Part 1: Comparison method for a hard-walled test room (a nationally adopted international standard). This standard, along with ANSI S12.53/Part 2-1999 replaces ANSI S12.33-1990
| Published By | Publication Date | Number of Pages |
| ASA | 2011 | 54 |
None
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 13 | 1 Scope 1.1 General 1.2 Types of noise and noise sources 1.3 Test environment 1.4 Measurement uncertainty 2 Normative references |
| 14 | 3 Terms and definitions |
| 18 | 4 Test room and size of noise source under test 4.1 Reference box 4.2 Volume of test room and size of noise source under test 4.3 Acoustical properties of test room |
| 19 | 4.4 Criterion for acoustic adequacy of test room |
| 20 | 4.5 Criterion for background noise 4.6 Ambient temperature and humidity 5 Instrumentation and measurement equipment 5.1 General 5.2 Calibration 6 Definition, location, installation, and operation of noise source under test 6.1 General |
| 21 | 6.2 Auxiliary equipment 6.3 Noise source location 6.4 Installation and mounting conditions |
| 22 | 6.5 Operation of source during test |
| 23 | 7 Measurement procedure 7.1 General 7.2 Location of noise source under test and reference sound source 7.3 Microphone positions |
| 24 | 7.4 Preliminary measurements for sources emitting audible discrete tones or narrow bands of noise 7.5 Measurement of sound pressure levels for a noise source which emits continuous noise |
| 25 | 7.6 Measurement of sound pressure levels for a noise source which emits bursts of noise 8 Determination of sound power levels and sound energy levels 8.1 Determination of sound power level |
| 28 | 8.2 Determination of sound energy level |
| 30 | 8.3 A-weighted sound power level and sound energy level 9 Measurement uncertainty 9.1 Methodology |
| 31 | 9.2 Determination of .omc 9.3 Determination of .R0 |
| 33 | 9.4 Typical upper bound values of .R0 9.5 Total standard deviation . tot and expanded uncertainty, U |
| 34 | 10 Information to be recorded ii © 2011 Acoustical Society of America—All rights reserved. 10.1 General 10.2 Noise source under test 10.3 Test room 10.4 Instrumentation |
| 35 | 10.5 Acoustical data 11 Test report |
| 36 | Annex A (normative) Sound power level and sound energy level under reference meteorological conditions |
| 38 | Annex B (normative) Calculation of A-weighted sound power levels and A-weighted sound energy levels from octave band levels B.1 A-weighted sound power levels B.2 A-weighted sound energy levels |
| 39 | B.3 Values of k and Ck for use in calculations |
| 40 | Annex C (informative) Guidelines on the development of information on measurement uncertainty C.1 General C.2 Considerations on the total standard deviation .tot C.3 Considerations on .omc |
| 42 | C.4 Considerations on .R0 |
| 50 | C.5 Combined standard uncertainty C.6 Measurement uncertainty based on reproducibility data |
| 51 | Bibliography |
