1 Scope
1.1 Application
1.2 References
2 Definitions
3 Instrumentation
3.1 Sound level meter
3.2 Octave band meter
3.3 Calibration
3.4 Meter setting
4 Test procedure
4.1 Environment
4.2 Mounting
4.3 Speed
5 Sound measurement
5.1 Microphone location
5.2 Single point measurement
5.3 Obtaining measurement
5.4 Determining the sound level of the unit
6 Acceptance criteria
7 Typical sound levels
8 Measurement report
Appendices
A Special contractual considerations
B Gear unit sound power determination
C Obtaining an average level from different sound
pressure levels on an energy basis
D Determination of the environmental correction
factor, K2, with the aid of a reference sound
source
Tables
3.1 Applicable American National Standards
5.1 Distance between major vertical surface and
microphone
5.2 Correction for ambient sound pressure levels
Figures
5.1 Sound test microphone position
7.1 Typical maximum sound level vs. high speed mesh
pitch line velocity
7.2 Typical high speed gear drive maximum sound level
7.3 Typical maximum sound level vs. catalog power
rating