ASA S12.10 2010 Part1
$89.38
ANSI/ASA S12.10-2010/Part 1 American National Standard Acoustics – Measurement of Airborne Noise Emitted by Information Technology and Telecommunications Equipment – Part 1: Determination of Sound Power Level and Emission Sound Pressure Level
| Published By | Publication Date | Number of Pages |
| ASA | 2010 | 80 |
None
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 13 | 1 Scope |
| 14 | 2 Normative references |
| 15 | 3 Terms and definitions 3.1 General definitions |
| 17 | 3.2 Acoustical definitions |
| 18 | 4 Conformance requirements 5 Installation and operating conditions 5.1 Equipment installation |
| 20 | 5.2 Input voltage and frequency |
| 21 | 5.3 Equipment operation |
| 22 | 6 Method for determining sound power levels of equipment in reverberation test rooms 6.1 General 6.2 Measurement uncertainty |
| 23 | 6.3 Test environment 6.4 Instrumentation |
| 24 | 6.5 Installation and operation of equipment: General requirements 6.6 Microphone positions and source locations |
| 25 | 6.7 Measurement of sound pressure level 6.8 Measurement of the sound pressure level of the reference sound source |
| 26 | 6.9 Calculation of mean time-averaged band sound pressure level 6.10 Determination of sound power level |
| 28 | 7 Method for determining sound power levels of equipment under essentially free-field conditions over a reflecting plane 7.1 General |
| 29 | 7.2 Measurement uncertainty 7.3 Test environment |
| 30 | 7.4 Instrumentation |
| 31 | 7.5 Installation and operation of equipment: General requirements 7.6 Measurement surface and microphone positions |
| 32 | 7.7 Measurement of sound pressure levels |
| 33 | 7.8 Calculation of surface sound pressure level 7.9 Determination of sound power levels |
| 34 | 8 Method for determining emission sound pressure levels at defined operator and bystander positions 8.1 General 8.2 Measurement uncertainty |
| 35 | 8.3 Test environment |
| 36 | 8.4 Instrumentation 8.5 Installation and operation of equipment 8.6 Microphone positions |
| 38 | 8.7 Measurement of sound pressure levels |
| 39 | 8.8 Determination of emission sound pressure levels |
| 41 | ii © Acoustical Society of America 2010 – All rights reserved 9 Information to be recorded and reported 9.1 Information to be recorded |
| 46 | 9.2 Test report |
| 48 | Annex A (normative) Test accessories A.1 Standard test table |
| 49 | A.2 Typing robot |
| 52 | Annex B (normative) Measurement surfaces B.1 Hemispherical measurement surface |
| 53 | B.2 Cylindrical measurement surface |
| 57 | Annex C (normative) Installation and operating conditions for specific equipment categories C.1 General |
| 58 | Annex D (informative) Identification and evaluation of prominent discrete tones D.1 Field of application D.2 Background |
| 59 | D.3 Microphone position(s D.4 Instrumentation |
| 60 | D.5 Initial screening tests |
| 61 | D.6 Discrete tones and noise emissions near the threshold of hearing |
| 63 | D.7 Critical bandwidths |
| 64 | D.8 Tone-to-noise ratio method |
| 69 | D.9 Prominence ratio method |
| 74 | D.10 Information to be recorded for prominent discrete tones |
| 76 | Annex E (informative) Detection of impulsive sound E.1 General E.2 Instruments E.3 Microphone position |
| 77 | E.4 Measurement procedure E.5 Test record for impulsive sound pressure levels |
| 78 | Bibliography |
