ANSI S12.10:2002(R2007)
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
ACOUSTICS - MEASUREMENT OF AIRBORNE NOISE EMITTED BY INFORMATION TECHNOLOGY AND TELECOMMUNICATIONS EQUIPMENT
Hardcopy , PDF
28-12-2010
English
01-01-2007
1 Scope
2 Normative references
3 Terms and definitions
3.1 General definitions
3.2 Acoustical definitions
4 Conformance requirements
5 Installation and operating conditions
5.1 Equipment installation
5.2 Input voltage and frequency
5.3 Equipment operation
6 Method for determining sound power levels of equipment in
reverberation rooms
6.1 General
6.2 Measurement uncertainty
6.3 Test environment
6.4 Instrumentation
6.5 Installation and operation of equipment: General
requirements
6.6 Microphone positions and source locations
6.7 Measurement of sound pressure level
6.8 Measurement of the sound pressure level of the
reference sound source
6.9 Calculation of space/time-averaged band sound pressure
level
6.10 Calculation of sound power level
7 Method for determining sound power levels of equipment under
essentially free-field conditions over a reflecting plane
7.1 General
7.2 Measurement uncertainty
7.3 Test environment
7.4 Instrumentation
7.5 Installation and operation of equipment: General
requirements
7.6 Measurement surface and microphone positions
7.7 Measurement of sound pressure levels
7.8 Calculation of surface sound pressure level and sound
power level
8 Method for measuring emission sound pressure levels at
defined operator and bystander positions
8.1 General
8.2 Measurement uncertainty
8.3 Test environment
8.4 Instrumentation
8.5 Installation and operation of equipment
8.6 Microphone positions
8.7 Measurement of sound pressure levels
8.8 Calculation of the mean emission sound pressure level
at the bystander positions
9 Information to be recorded and reported
9.1 Information to be recorded
9.2 Test report
Annex A (normative) - Test accessories
Annex B (normative) - Measurement surfaces
Annex C (normative) - Installation and operating conditions
for specific equipment categories
Annex D (informative) - Identification of prominent discrete
tones
Annex E (informative) - Detection of impulsive sound pressure
levels
Bibliography
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.