BS 7703-1(1993) : 1993 AMD 8934
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 - DETERMINATION OF SOUND POWER LEVELS OF NOISE SOURCES USING SOUND INTENSITY - MEASUREMENT AND DISCRETE POINTS
12-15-1995
11-23-2012
Committees responsible
National foreword
Method
1 Scope
2 Normative references
3 Definitions
4 General requirements
5 Acoustic environment
6 Instrumentation
7 Installation and operation of the source
8 Measurement of normal sound intensity component
levels
9 Calculation of sound power level
10 Information to be reported
Tables
1 Bias error factor, K
2 Uncertainty in the determination of sound power
levels
B.1 Error factor
B.2 Values for factor C
B.3 Actions to be taken to increase grade of accuracy
of determination
Figures
1 Preferred initial measurement surfaces
B.1 Scheme for the procedure for achieving the desired
grade of accuracy
Annexes
A (normative) Calculation of field indicators
B (normative) Procedure for achieving a desired grade
of accuracy
C (informative) Effects of airflow on measurement of
sound intensity
D (informative) Effect of sound absorption within the
measurement surface
E (informative) Bibliography
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