British & International Standards

BS 2750

Standard Number: BS 2750:Part 1:1980, ISO 140/I-1978
Title: Measurement of sound insulation in buildings and of building elements. Recommendations for laboratories
Abstract: Gives recommendations for laboratories used for measurements of airborne and impact sound insulation of building elements where radiation from flanking elements is suppressed. Tests are carried out between two reverberant rooms of 50 m where the test sample is approximately 10 m for walls, and 10 m to 20 m for floors.
Status: Superseded, Withdrawn
Publication Date: 1980/06/30
Confirmed on: 1993/03/15
Cross References: BS 2750:Part 3, BS 2750:Part 6, BS 2750:Part 8,
Withdrawn on: 1998/03/15
Replaced by: BS EN ISO 140-1:1998,
International Relationships: ISO 140-1:1978 Identical
Supersedes Draft: 75/23999 DC
Descriptors: Sound insulation, Buildings, Acoustic measurement, Acoustic testing rooms, Acoustic testing, Floors, Floor coverings, Construction systems parts, Laboratory testing, Noise (environmental)



Standard Number: BS 2750:Part 2:1980, ISO 140/II-1978
Title: Measurement of sound insulation in buildings and of building elements. Statement of precision requirements
Abstract: Procedures for assessing uncertainty in the acoustical measurements due to non-systematic influences. Compares the differences from 3 consecutive pairs of complete measurements with tentative repeatability figures as a check on one laboratory and test procedure. The method can be extended to cover tests by several different laboratories on the same building element.
Status: Superseded, Withdrawn
Publication Date: 1980/06/30
Confirmed on: 1993/03/15
Cross References: BS 2750:Part 3, BS 2750:Part 4, BS 2750:Part 5, BS 2750:Part 6, BS 2750:Part 7, BS 2750:Part 8, BS 2846:Part 2, BS 2846:Part 4, BS 5532, ISO/DIS 4259, ISO/DIS 5725,
Withdrawn on: 1993/05/15
Replaced by: BS EN 20140-2:1993,
International Relationships: ISO 140/2:1978 Identical
Supersedes Draft: 75/24000 DC
Descriptors: Sound insulation, Buildings, Construction systems parts, Acoustic measurement, Acoustic testing, Precision, Laboratory testing, Field testing, Mathematical calculations, Formulae (mathematics), Noise (environmental), Standard deviation



Standard Number: BS 2750:Part 3:1980, ISO 140/III-1978
Title: Measurement of sound insulation in buildings and of building elements. Laboratory measurements of airborne sound insulation of building elements
Abstract: Covers elements such as doors, walls, windows and facade elements. The steady state /3 octave band filtered white noise level difference is determined in addition to the receiving room equivalent absorption area from which the sound reduction index is derived. The results can be used for design and comparison of building elements.
Status: Superseded, Withdrawn
Publication Date: 1980/06/30
Confirmed on: 1993/03/15
Cross References: BS 2475, BS 2750:Part 1, BS 2750:Part 2, BS 2750:Part 4, BS 2750:Part 5, BS 3638, BS 5821, ISO/R 717, ISO 1683,
Withdrawn on: 1995/12/15
Replaced by: BS EN ISO 140-3:1995,
International Relationships: ISO 140/3:1978 Identical
Supersedes Draft: 75/24001 DC
Descriptors: Airborne sound insulation, Sound insulation, Construction systems parts, Acoustic measurement, Acoustic testing, Laboratory testing, Doors, Windows, Facades, Reports, Mathematical calculations, Noise (environmental)



Standard Number: BS 2750:Part 4:1980, ISO 140/IV-1978
Title: Measurement of sound insulation in buildings and of building elements. Field measurements of airborne sound insulation between rooms
Abstract: Applies to sound insulation between a pair of rooms. Determines the steady state /3 octave band filtered white noise level difference and the receiving room equivalent absorption area from which the standardized level difference is derived. The results can be used to determine whether building elements have met acoustic specifications, e.g. Building Regulations.
Status: Superseded, Withdrawn
Publication Date: 1980/06/30
Confirmed on: 1993/03/15
Cross References: BS 2475, BS 2750:Part 2, BS 2750:Part 3, BS 2750:Part 5, BS 3638, BS 5821, ISO/R 717, ISO 1683,
Withdrawn on: 1998/10/15
Replaced by: BS EN ISO 140-4:1998,
International Relationships: ISO 140/4:1978 Identical
Supersedes Draft: 75/24002 DC
Descriptors: Airborne sound insulation, Sound insulation, Buildings, Acoustic measurement, Acoustic testing, Field testing, Rooms, Interior walls, Floors, Doors, Construction systems parts, Partitions, Reports, Mathematical calculations, Noise (environmental)



Standard Number: BS 2750:Part 5:1980, ISO 140/V-1978
Title: Measurement of sound insulation in buildings and of building elements. Field measurements of airborne sound insulation of facade elements and facades
Abstract: Applies to the sound insulation of a building facade with respect to external noise such as traffic noise. The sound source for the steady state /3 octave band filtered level difference can be either the existing traffic noise or noise from a loudspeaker. The results, expressed as either sound reduction index or standardized level difference can be used to determine whether facades have met acoustic specifications. Method mainly intended to measure noise reduction efficiency of double glazing.
Status: Superseded, Withdrawn
Publication Date: 1980/06/30 Confirmed on: 1993/03/15
Cross References: BS 2745, BS 2750:Part 2, BS 2750:Part 3, BS 3638, ISO/R 1996,
Withdrawn on: 1998/10/15
Replaced by: BS EN ISO 140-5:1998,
International Relationships: ISO 140/5:1978 Identical
Supersedes Draft: 75/24003 DC
Descriptors: Airborne sound insulation, Sound insulation, Buildings, Facades, Acoustic measurement, Acoustic testing, Field testing, Noise (environmental), Traffic, Mathematical calculations, Reports, Loudspeakers, Formulae (mathematics)



Standard Number: BS 2750:Part 6:1980, ISO 140/VI-1978
Title: Measurement of sound insulation in buildings and of building elements. Laboratory measurements of impact sound insulation of floors
Abstract: Measures impact noise transmissions through floors using a standardized tapping machine. The steady state /3 octave band filtered receiving room sound pressure level is measured while the impact sound is tapping on the test floor. Determines the receiving room equivalent absorption area and derives the normalized impact sound pressure level. The results can be used for design and comparison of floors.
Status: Superseded, Withdrawn
Publication Date: 1980/06/30
Confirmed on: 1993/03/15
Cross References: BS 2475, BS 2750:Part 1, BS 2750:Part 2, BS 2750:Part 7, BS 2750:Part 8, BS 3638, BS 4197, BS 5821, ISO/R 717, ISO 1683,
Withdrawn on: 1998/10/15
Replaced by: BS EN ISO 140-6:1998,
International Relationships: ISO 140-6:1978 Identical
Supersedes Draft: 75/24004 DC
Descriptors: Sound insulation, Acoustic testing, Acoustic measurement, Laboratory testing, Buildings, Floors, Construction systems parts, Noise (environmental), Reports, Test equipment, Sound sources, Impact sound insulation



Standard Number: BS 2750:Part 7:1980, ISO 140/VII-1978
Title: Measurement of sound insulation in buildings and of building elements. Field measurements of impact sound insulation of floors
Abstract: Measures the impact sound insulation between a pair of rooms. The steady state / octave band filtered receiving room sound pressure level is measured while a standardized tapping machine is hammering on the test floor. Determines the receiving room equivalent absorption area and derives the normalized/standardized impact sound pressure level. The results can be used to determine whether floors have met acoustic specifications, e.g. Building Regulations.
Status: Superseded, Withdrawn
Publication Date: 1980/06/30
Confirmed on: 1993/03/15
Cross References: BS 2475, BS 2750:Part 2, BS 2750:Part 6, BS 2750:Part 8, BS 3638, BS 4197, BS 5821, ISO/R 717, ISO 1683,
Withdrawn on: 1998/11/15
Replaced by: BS EN ISO 140-7:1998,
International Relationships: ISO 140/7:1978 Identical
Supersedes Draft: 75/24005 DC
Descriptors: Sound insulation, Acoustic testing, Acoustic measurement, Field testing, Buildings, Floors, Construction systems parts, Noise (environmental), Reports, Impact sound insulation



Standard Number: BS 2750:Part 8:1980, ISO 140/VIII-1978
Title: Measurement of sound insulation in buildings and of building elements. Laboratory measurements of the reduction of transmitted impact noise by floor coverings on a standard floor
Abstract: Determines the noise reduction value of a floor covering under standard test conditions. Using a specified concrete floor, the impact sound insulation is measured in the presence and absence of the floor covering. Can be used for the design and comparison of floor coverings, e.g. carpets and soft vinyl.
Status: Superseded, Withdrawn
Publication Date: 1980/06/30
Confirmed on: 1993/03/15
Cross References: BS 2475, BS 2750:Part 1, BS 2750:Part 2, BS 2750:Part 6, BS 3638, BS 4197,
Withdrawn on: 1998/03/15
Replaced by: BS EN ISO 140-8:1998,
International Relationships: ISO 140/8:1978 Identical
Supersedes Draft: 75/24006 DC
Descriptors: Sound insulation, Acoustic testing, Acoustic measurement, Laboratory testing, Noise (environmental), Floors, Floor coverings, Noise control (acoustic), Noise control devices, Reports, Impact sound insulation