BS 4196-4:1981
Superseded
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Sound power levels of noise sources Engineering methods for determination of sound power levels for sources in free-field conditions over a reflecting plane
Available format(s)
Hardcopy , PDF
Superseded date
10-15-1994
Language(s)
English
Published date
11-30-1981
Publisher
Explains engineering methods for measuring the sound pressure levels on a measurement surface enveloping the source and for calculating the sound power level produced by the source. Gives requirements for the test environment and instrumentation as well as techniques for obtaining the surface sound pressure level from which the A-weighted sound power level of the source and octave or one-third octave band sound power levels are calculated. This is concerned with specification of the basic acoustic requirements for the measurement of noise under free-field conditions over a reflecting plane. It is important that specific test codes for various types of equipment be established and used as the basis for measurements.
| Committee |
EH/1
|
| DocumentType |
Standard
|
| Pages |
30
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| BS 5944-3:1980 | Measurement of airborne noise from hydraulic fluid power systems and components Guide to the application of Part 1 and Part 2 |
| BS 4196-2:1981 | Sound power levels of noise sources Precision methods for determination of sound power levels for discrete-frequency and narrow-band sources in reverberation rooms |
| BS 5944-5:1985 | Measurement of airborne noise from hydraulic fluid power systems and components Simplified method of determining sound power levels from pumps using an anechoic chamber |
| BS 5944-6:1992 | Measurement of airborne noise from hydraulic fluid power systems and components Method of test for pumps using a parallelepiped microphone array |
| BS 6140-1:1981 | Test equipment for generating vibration Methods of describing characteristics of electrodynamic test equipment for generating vibration |
| BS 6686-2.4(1991) : 1991 | METHODS FOR DETERMINATION OF AIRBORNE ACOUSTICAL NOISE EMITTED BY HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - PARTICULAR REQUIREMENTS - WASHING MACHINES AND SPIN EXTRACTORS |
| BS 6686-2.3(1991) : 1991 | METHODS FOR DETERMINATION OF AIRBORNE ACOUSTICAL NOISE EMITTED BY HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - PARTICULAR REQUIREMENTS - DISHWASHERS |
| BS 4272-3:1989 | Anaesthetic and analgesic machines Specification for continuous flow anaesthetic machines |
| BS 7120:1989 | Specification for rating and performance of air to liquid and liquid to liquid chilling packages |
| BS 6805-2:1987 | Statistical methods for determining and verifying stated noise emission values of machinery and equipment Method for determining and verifying stated values for individual machines |
| BS 5944-4:1984 | Measurement of airborne noise from hydraulic fluid power systems and components Method of determining sound power levels from valves controlling flow and pressure |
| BS 4196-1:1981 | Sound power levels of noise sources Precision methods for determination of sound power levels for broad-band sources in reverberation rooms |
| BS 5724-2.24(1989) : 1989 | MEDICAL ELECTRICAL EQUIPMENT - PARTICULAR REQUIREMENTS FOR SAFETY - SPECIFICATION FOR HUMIDIFIERS |
| BS 6686-2.2(1990) : 1990 | METHODS FOR DETERMINATION OF AIRBORNE ACOUSTICAL NOISE EMITTED BY HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - PARTICULAR REQUIREMENTS - FORCED DRAUGHT CONVECTION HEATERS |
| BS 1571-1:1987 | Specification for testing of positive displacement compressors and exhausters Methods for acceptance testing |
| BS 848-2:1985 | Fans for general purposes Methods of noise testing |
| BS 5944-1:1992 | Measurement of airborne noise from hydraulic fluid power systems and components Method of test for pumps |
| BS 5944-2:1992 | Measurement of airborne noise from hydraulic fluid power systems and components Method of test for motors |
| BS 6836(1987) : AMD 7527 | SPECIFICATION FOR CENTRIFUGAL PUMPS: CLASS II |
| BS 7458-1:1991 | Test code for the measurement of airborne noise emitted by rotating electrical machinery Engineering method for free-field conditions over a reflecting plane |
| BS 6686-2.5(1991) : 1991 | METHODS FOR DETERMINATION OF AIRBORNE ACOUSTICAL NOISE EMITTED BY HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - PARTICULAR REQUIREMENTS - ROOM HEATERS OF THE STORAGE TYPE |
| BS 4196-3:1981 | Sound power levels of noise sources Engineering methods for determination of sound power levels for sources in special reverberation test rooms |
| BS 5944-2:1980 | Measurement of airborne noise from hydraulic fluid power systems and components Method of test for motors |
| BS 5724-2.23(1986) : LATEST | MEDICAL ELECTRICAL EQUIPMENT - PARTICULAR REQUIREMENTS FOR SAFETY - SPECIFICATION FOR OXYGEN CONCENTRATORS FOR HOSPITAL AND DOMICILIARY USE |
| BS 7135-1:1989 | Noise emitted by computer and business equipment Method of measurement of airborne noise |
| BS 6805-3:1987 | Statistical methods for determining and verifying stated noise emission values of machinery and equipment Method for determining and verifying stated values for batches of machines using a simple (transition) method |
| BS 6840-5:1990 | Sound system equipment Methods for specifying and measuring the characteristics of loudspeakers |
| BS 5944-1:1980 | Measurement of airborne noise from hydraulic fluid power systems and components Method of test for pumps |
| BS 6805-1:1987 | Statistical methods for determining and verifying stated noise emission values of machinery and equipment Glossary of terms |
| BS 7025:1988 | Method for preparation of test codes of engineering grade for measurement at the operator\'s or bystander\'s position of noise emitted by machinery |
| BS 6805-4:1987 | Statistical methods for determining and verifying stated noise emission values of machinery and equipment Methods for determining and verifying stated values for batches of machines |
| BS 5793-8.1:1986 | Industrial-process control valves. Noise considerations Method for laboratory measurement of noise generated by aerodynamic flow through control valves |
| BS 5724-2.28(1990) : 1990 | MEDICAL ELECTRICAL EQUIPMENT - PARTICULAR REQUIREMENTS FOR SAFETY - SPECIFICATION FOR SUCTION EQUIPMENT |
| BS 5793-8.2(1991) : 1991 AMD 7819 | INDUSTRIAL-PROCESS CONTROL VALVES - NOISE CONDITIONS - METHOD FOR LABORATORY MEASUREMENT OF NOISE GENERATED BY HYDRODYNAMIC FLOW THROUGH CONTROL VALVES |
| BS 6686-1:1986 | Methods for determination of airborne acoustical noise emitted by household and similar electrical appliances General requirements for testing |
| ISO 3742:1988 | Acoustics — Determination of sound power levels of noise sources — Precision methods for discrete-frequency and narrow-band sources in reverberation rooms |
| ISO 2204:1979 | Acoustics Guide to International Standards on the measurement of airborne acoustical noise and evaluation of its effects on human beings |
| ISO 354:2003 | Acoustics — Measurement of sound absorption in a reverberation room |
| ISO 266:1997 | Acoustics — Preferred frequencies |
| ISO 3740:2000 | Acoustics Determination of sound power levels of noise sources Guidelines for the use of basic standards |
| ISO 3746:2010 | Acoustics Determination of sound power levels and sound energy levels of noise sources using sound pressure Survey method using an enveloping measurement surface over a reflecting plane |
| IEC 60225:1966 | Octave, half-octave and third-octave band filters intended for the analysis of sounds and vibrations |
| ISO 6926:2016 | Acoustics Requirements for the performance and calibration of reference sound sources used for the determination of sound power levels |
| ISO 3741:2010 | Acoustics Determination of sound power levels and sound energy levels of noise sources using sound pressure Precision methods for reverberation test rooms |
| ISO 3745:2012 | Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Precision methods for anechoic rooms and hemi-anechoic rooms |
| IEC 60651:1979+AMD1:1993+AMD2:2000 CSV | Sound level meters |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.