BSI 22/30450621 DC:2022 Edition

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BS ISO 9613-2. Acoustics. Attenuation of sound during propagation – Part 2. Engineering method for the prediction of sound pressure levels outdoors

Published By	Publication Date	Number of Pages
BSI	2022	55

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Categories: 17.140.01 - Acoustic measurements and noise abatement in general, BSI

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PDF Pages	PDF Title
1	30450621-NC.pdf
3	ISO_DIS 9613-2 ed.2 – id.74047 Enquiry PDF (en).pdf
6	Foreword
8	Introduction
9	1 Scope
10	2 Normative references 3 Terms and definitions
12	4 Source description
15	5 Meteorological conditions 6 Basic formulae
17	7 Calculation of the attenuation terms 7.1 Geometric divergence (Adiv)
18	7.2 Atmospheric absorption 7.3 Ground effect (Agr) 7.3.1 General method of calculation
21	7.3.2 Simplified method of calculation for A-weighted sound pressure levels
22	7.4 Screening (Abar) 7.4.1 General method of calculation
27	7.4.2 Alternative method to calculate the path length difference z with one edge or with more parallel edges
28	7.4.3 Lateral diffraction around vertical edges
29	7.4.4 Combining vertical and lateral diffractions and limitations 7.5 Reflections 7.5.1 General 7.5.2 Single reflection at a flat surface€– conditions and calculation
31	7.5.3 Multi-reflection up to higher orders
32	7.5.4 Reflections at cylindrical surfaces
33	8 Meteorological correction (Cmet)
34	9 Accuracy and limitations of the method
36	Annex€A (informative) Additional types of attenuation (Amisc)
42	Annex€B (informative) Directivity correction Dc for chimney stacks
46	Annex€C (informative) Meteorological correction due to the dependency of C0 from the angular wind distribution
51	Annex€D (informative) Calculation of sound pressure levels caused by wind turbines
54	Bibliography

Additional information

Status	Definitive
Pages	55
Publication Date	2022-11-29
Standard Number	22/30450621 DC
Title	BS ISO 9613-2. Acoustics. Attenuation of sound during propagation – Part 2. Engineering method for the prediction of sound pressure levels outdoors
Identical National Standard Of	ISO/CD 9613-2:2022, ISO 9613-2
Descriptors	Sound (acoustics), Acoustics, Propagation, Sound pressure, Calculations (mathematics), Methods of calculation
Publisher	BSI
Committee	EH/1/3
ICS Codes	17.140.01 - Acoustic measurements and noise abatement in general

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BSI 22/30450621 DC:2022 Edition

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