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ISO 10848-1:2017 Acoustics - Laboratory and field measurement of flanking transmission for airborne, impact and building service equipment sound between adjoining rooms - Part 1: Frame document >
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ISO 10848-1:2017 Acoustics - Laboratory and field measurement of flanking transmission for airborne, impact and building service equipment sound between adjoining rooms - Part 1: Frame document, 2017
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Quantities to characterize flanking transmission
- 4.1 General
- 4.2 Normalized flanking level difference, Dn,f, normalized flanking impact sound pressure level, Ln,f,and normalized flanking equipment sound pressure level, Lne0,f
- 4.2.1 General
- 4.2.2 Dv,ij,n estimated from measurements of Dn,f
- 4.3 Vibration reduction index, Kij
- 4.3.1 General
- 4.3.2 Kij for combinations of Type A and B elements
- 4.3.3 Strong coupling between Type A elements
- 4.4 Normalized direction-average vibration level difference, 
- 4.4.1 General
- 4.5 Selection of the measurement method
- 5 Instrumentation
- 5.1 General
- 5.2 Verification
- 6 General requirements for test facility and test elements
- 6.1 Laboratory
- 6.2 Field
- 7 Measurement methods
- 7.1 Measurement of Dn,f, Ln,f and Lne0,f
- 7.1.1 Generation of sound field in the source room
- 7.1.2 Measurement of the average sound pressure level
- 7.1.3 Measurement of reverberation time and evaluation of the equivalent sound absorption area
- 7.2 Measurement of Kij and 
- 7.2.1 General aspects for Kij
- 7.2.2 General aspects for 
- 7.2.3 Vibration measurement
- 7.2.4 Generation of vibration on the source element
- 7.2.5 Procedure for Type A and B elements
- 7.2.6 Steady-state excitation
- 7.2.7 Transient excitation
- 7.3 Measurement of the structural reverberation time for Type A elements
- 7.3.1 General
- 7.3.2 Excitation of the test element
- 7.3.3 Measurement and excitation positions
- 7.3.4 Evaluation of the decay curves
- 7.3.5 Lower limits for reliable results caused by filter and detector
- 7.4 Frequency range of measurement
- 8 Influences from other parts of the test facility or the building construction in the field situation
- 8.1 Laboratory installations of test junctions
- 8.2 Criterion to assess flanking transmission for junctions comprised of Type A elements
- 8.2.1 General
- 8.2.2 Practical considerations
- 8.3 Verification procedure for a Type B flanking element that is structurally independent of a separating element
- 9 Shielding
- 10 Expression of results
- Annex A (normative) Assessing the decrease in vibration level with distance
- Annex B (normative) Calibrated structure-borne sound source
- Bibliography [Go to Page]