I.S. EN 12354-4:2000
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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BUILDING ACOUSTICS - ESTIMATION OF ACOUSTIC PERFORMANCE OF BUILDINGS FROM THE PERFORMANCE OF ELEMENTS - PART 4: TRANSMISSION OF INDOOR SOUND TO THE OUTSIDE
Hardcopy , PDF
03-09-2017
English
01-01-2000
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Foreword
1 Scope
2 Normative references
3 Relevant quantities
3.1 Quantities to express building performance
3.1.1 Sound power level L[w]
3.1.2 Directivity correction D[c]
3.2 Quantities to express element performance
3.2.1 Sound reduction index R
3.2.2 Element normalized level difference
D[n,e]
3.2.3 Insertion loss D (of an element)
3.2.4 Other relevant data
3.3 Other terms and quantities
3.3.1 Sound pressure level L[p]
3.3.2 Total attenuation due to propagation
A[tot]
3.3.3 Diffusivity term C[d]
3.3.4 Inside sound pressure level L[p,in]
3.3.5 Substitute point source
4 Calculation model
4.1 General principles
4.2 Determination of substitute point sound sources
4.3 Determination of the sound power level for a
substitute point source
4.4 Determination of the directivity correction for
a substitute point source
4.5 Limitations
5 Accuracy
Annex A (normative) List of symbols
Annex B (informative) Interior sound field
Annex C (informative) Sound reduction index
Annex D (informative) Directivity of sound radiation
D.1 - Plane radiator
D.2 - Openings
Annex E (informative) Simplified model to predict exterior
sound pressure levels
Annex F (informative) Application of the model to single
number ratings
F.1 - General
F.2 - Input data
F.3 - Model for single number ratings
F.4 - Limitations
Annex G (informative) Calculation example
G.1 - Situation
G.2 - Results complete model
G.2.1 - Substitute point sources
G.3 - Results from simplified model
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