BS EN ISO 140-12:2000
Acoustics - Measurement of sound insulation in buildings and of building elements - Laboratory measurement of room-to-room airborne and impact sound insulation of an access floor

Standard No.

BS EN ISO 140-12:2000

Release Date

2000

Published By

British Standards Institution (BSI)

Status

Be replaced 2006-04

Replace By

BS EN ISO 10848-2:2006

Latest

BS EN ISO 10848-2:2017

Scope

This standard specifies a laboratory method to measure the airborne and impact sound insulation of an access floor with a plenum of defined height mounted below an acoustical barrier which separates two rooms of a specified test facility. This method utilizes a laboratory space arranged in such a manner that it simulates a pair of horizontally adjacent, typical offices or rooms sharing a common access floor system, plenum space and a dividing wall. The dividing wall extends from the ceiling to the upperside of the floor system which at the junction is either continuous or discontinuous. The quantities being measured are the airborne and impact sound insulation between two rooms of a specified test facility when the sound transmitted by paths other than the access floor and common plenum space is negligible. These quantities are called the normalized flanking level difference and the normalized flanking impact sound pressure level. The method can be extended to the study of the additional sound insulation that can be achieved by auxiliary systems, such as material used either as plenum barriers or as backing for all of, or part of the floor.

BS EN ISO 140-12:2000 history

• 2017 BS EN ISO 10848-2:2017 Acoustics. Laboratory and field measurement of flanking transmission for airborne, impact and building service equipment sound between adjoining rooms. Application to Type B elements when the junction has a small influence
• 2006 BS EN ISO 10848-2:2006 Acoustics - Laboratory measurement of the flanking transmission of airborne and impact sound between adjoining rooms - Application to light elements when the junction has a small influence
• 2000 BS EN ISO 140-12:2000 Acoustics - Measurement of sound insulation in buildings and of building elements - Laboratory measurement of room-to-room airborne and impact sound insulation of an access floor

BS EN ISO 140-12:2000 Acoustics - Measurement of sound insulation in buildings and of building elements - Laboratory measurement of room-to-room airborne and impact sound insulation of an access floor was changed to BS EN ISO 10848-2:2006 Acoustics - Laboratory measurement of the flanking transmission of airborne and impact sound between adjoining rooms - Application to light elements when the junction has a small influence.