BS 6686-1:1986
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Methods for determination of airborne acoustical noise emitted by household and similar electrical appliances General requirements for testing
Hardcopy , PDF
31-10-2018
English
31-01-1986
National foreword
Committees responsible
Methods
Introduction
1. Scope and object
2. References
3. Terms and definitions
4. Measurement methods and acoustical environments
5. Instrumentation
6. Operation and location of appliances under test
7. Measurement of noise levels
8. Calculation of sound pressure and sound power levels
9. Information to be recorded
10. Information to be reported
Appendix
A. Guidelines for the design of simple test rooms with
essentially free-field conditions
Figures
1. Measurement surface - parallelepiped - with nine
microphone positions for floor free-standing
appliances
2. Measurement surface - parallelepiped - with six
microphone positions for floor-standing appliances
placed against a wall
3. Measurement surface - parallelepiped - with seven
microphone positions for high floor-standing
appliances placed against a wall
4. Measurement surface - hemisphere - with ten
microphone positions for hand-held, table-type and
floor treatment appliances
5. Measurement surface - hemisphere - with seven
microphone positions for hand-held, table-type and
floor-type appliances
6. Measurement surface - quartersphere - with five
microphone positions for small floor-standing
appliances placed against a wall
7. Measurement surface - sphere - with eight microphone
positions for stand-type appliances
8. Test fixtures for hand-held appliances
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