BS 4142:1990
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Method for rating industrial noise affecting mixed residential and industrial areas
Hardcopy , PDF
15-09-1997
English
30-11-1990
Committees responsible
Foreword
Method
1 Scope
2 Definitions and symbols
3 Measuring equipment
3.1 Specific noise level
3.2 Background noise level
4 Calibration
4.1 Operational tests
4.2 Traceability
5 Determination of the specific noise level
5.1 General
5.2 Reference time interval
5.3 Measurement positions
5.4 Influences on noise level readings and predictions
5.5 Measurement time interval
6 Background noise level
6.1 General
6.2 New or modified specific noise source
6.3 Existing specific noise source not operating
continuously
6.4 Existing specific noise source which operates
continuously
7 Determination of rating level
8 Assessing the noise for complaint purposes
8.1 General
8.2 Method of assessment
9 Information to be reported
Appendix
A Examples of how to use the standard to obtain noise
ratings
Table
1 Corrections to noise level readings
Figures
1 Plan showing proposed location for a new noise
source at an existing factory site
2 Plan showing location of noise source at a site
different from that in figure 1
3 Trace for example 3
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