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INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 9613-2
ISO/TC 43/SC 1
Acoustics — Attenuation of sound
Secretariat: DIN
during propagation outdoors —
Voting begins on:
2023-10-16
Part 2:
Voting terminates on:
Engineering method for the prediction
2023-12-11
of sound pressure levels outdoors
Acoustique — Atténuation du son lors de sa propagation à l'air
libre —
Partie 2: Méthode d'ingénierie pour la prédiction des niveaux de
pression acoustique en extérieur
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 9613-2:2023(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO 2023
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ISO/FDIS 9613-2:2023(E)
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 9613-2
ISO/TC 43/SC 1
Acoustics — Attenuation of sound
Secretariat: DIN
during propagation outdoors —
Voting begins on:
Part 2:
Voting terminates on:
Engineering method for the prediction
of sound pressure levels outdoors
Acoustique — Atténuation du son lors de sa propagation à l'air
libre —
Partie 2: Méthode d'ingénierie pour la prédiction des niveaux de
pression acoustique en extérieur
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or ISO’s member body in the country of the requester.
RECIPIENTS OF THIS DRAFT ARE INVITED TO
ISO copyright office
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
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THEY ARE AWARE AND TO PROVIDE SUPPOR TING
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DOCUMENTATION.
Phone: +41 22 749 01 11
IN ADDITION TO THEIR EVALUATION AS
Reference number
Email: [email protected]
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 9613-2:2023(E)
Website: www.iso.org
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
Published in Switzerland
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
ii
© ISO 2023 – All rights reserved
NATIONAL REGULATIONS. © ISO 2023
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ISO/FDIS 9613-2:2023(E)
Contents Page
Foreword .iv
Introduction . vi
1 Scope . 1
2 Normative references . 2
3 Terms, definitions, symbols and units . 2
3.1 Terms and definitions . 2
3.2 Symbols and units . 3
4 Source description .4
5 Meteorological conditions .6
6 Basic formulae . 7
7 Calculatio
...