{"id":197497,"date":"2024-10-19T12:34:14","date_gmt":"2024-10-19T12:34:14","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/asa-s12-62-2012\/"},"modified":"2024-10-25T05:07:49","modified_gmt":"2024-10-25T05:07:49","slug":"asa-s12-62-2012","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/asa\/asa-s12-62-2012\/","title":{"rendered":"ASA S12.62 2012"},"content":{"rendered":"
None<\/p>\n
PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
---|---|---|---|---|---|---|---|
11<\/td>\n | 1 Scope <\/td>\n<\/tr>\n | ||||||
12<\/td>\n | 2 Normative references 3 Definitions <\/td>\n<\/tr>\n | ||||||
14<\/td>\n | 4 Source description 5 Meteorological conditions <\/td>\n<\/tr>\n | ||||||
15<\/td>\n | 6 Basic equations <\/td>\n<\/tr>\n | ||||||
16<\/td>\n | 7 Calculation of the attenuation terms 7.1 Geometrical divergence (Adiv 7.2 Atmospheric absorption (Aatm <\/td>\n<\/tr>\n | ||||||
17<\/td>\n | 7.3 Ground effect (Agr <\/td>\n<\/tr>\n | ||||||
18<\/td>\n | Figures \n Figure 1 \u2013 Three distinct regions for determination of ground attenuation <\/td>\n<\/tr>\n | ||||||
20<\/td>\n | Figure 2 \u2013 Functions a\u2019, b\u2019, c\u2019 and d\u2019 representing the influence of the source-to-receiver distance \n dp and the source or receiver height h, respectively, on the ground attenuation Agr (computed \n from equations in table 3 <\/td>\n<\/tr>\n | ||||||
21<\/td>\n | 7.4 Screening (Abar Figure 3 \u2013 Method for evaluating the mean height hm <\/td>\n<\/tr>\n | ||||||
22<\/td>\n | Figure 4 \u2013 Plan view of two obstacles between the source (S) and the receiver (R <\/td>\n<\/tr>\n | ||||||
23<\/td>\n | Figure 5 \u2013 Different sound propagation paths at a barrier <\/td>\n<\/tr>\n | ||||||
24<\/td>\n | Figure 6 \u2013 Geometrical quantities for determining the pathlength difference for single diffraction <\/td>\n<\/tr>\n | ||||||
27<\/td>\n | 7.5 Reflections <\/td>\n<\/tr>\n | ||||||
29<\/td>\n | 8 Meteorological correction (Cmet <\/td>\n<\/tr>\n | ||||||
31<\/td>\n | 9 Accuracy and limitations of the method <\/td>\n<\/tr>\n | ||||||
33<\/td>\n | Annex A (informative) Additional types of attenuation (Amisc A.1 Foliage (Afol <\/td>\n<\/tr>\n | ||||||
34<\/td>\n | A.2 Industrial sites (Asite A.3 Housing (Ahous <\/td>\n<\/tr>\n | ||||||
36<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" ANSI\/ASA S12.62-2012 \/ ISO 9613-2:1996 (MOD) (R2017) American National Standard Acoustics -Attenuation of sound during propagation outdoors – Part 2: General method of calculation (a modified nationally adopted international standard)<\/b><\/p>\n |