BS 5944-5:1985
Current
The latest, up-to-date edition.
Measurement of airborne noise from hydraulic fluid power systems and components Simplified method of determining sound power levels from pumps using an anechoic chamber
Hardcopy , PDF
English
31-07-1985
Foreword
Committees responsible
Method
0 Introduction
1 Scope
2 Definitions
3 Measurement uncertainty
4 Test environment
5 Instrumentation
6 Installation conditions for pump
7 Operating conditions
8 Location and number of sound measuring points
9 Test procedure
10 Calculation of pump mean sound pressure levels and
sound power levels
11 Calculation of mean sound pressure level at a
reference distance
12 Information to be recorded
13 Test report
Appendices
A Errors and classes of measurement
B Reference dimensions, axes and location of sound
measuring points
C Corrections for pump sound power level
D Calculation of mean sound pressure level at a
reference distance
Tables
1 Standard deviation of sound power level
determination
2 Allowable variations in test conditions
3 Permissible systematic errors of measuring
instruments as determined during calibration
4 Coordinates of microphone locations
Figure
1 Key reference axes and dimensions
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