{"id":197518,"date":"2024-10-19T12:34:18","date_gmt":"2024-10-19T12:34:18","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/asa-s12-76-2017\/"},"modified":"2024-10-25T05:07:52","modified_gmt":"2024-10-25T05:07:52","slug":"asa-s12-76-2017","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/asa\/asa-s12-76-2017\/","title":{"rendered":"ASA S12.76 2017"},"content":{"rendered":"

None<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
11<\/td>\n1 Scope
2 Normative references <\/td>\n<\/tr>\n
12<\/td>\n3 Terms and definitions <\/td>\n<\/tr>\n
14<\/td>\n4 Noise data acquisition system requirements
4.1 Microphones and preamplifiers <\/td>\n<\/tr>\n
15<\/td>\n4.2 Digital recording system <\/td>\n<\/tr>\n
16<\/td>\n5 Measurement site
5.1 Terrain
5.2 Ground impedance \u2013 optional far-field measurements only <\/td>\n<\/tr>\n
17<\/td>\n5.3 Weather requirements
6 Measurement methods
6.1 General procedures <\/td>\n<\/tr>\n
18<\/td>\n6.2 Engine performance measurement methods
6.3 Near-field method <\/td>\n<\/tr>\n
20<\/td>\n6.4 Optional far-field method using elevated microphones <\/td>\n<\/tr>\n
22<\/td>\n7 Data analysis
7.1 Weather analysis
7.2 Spectral analysis <\/td>\n<\/tr>\n
23<\/td>\n7.3 Uncorrected pressure-time histories \u2013 pressure vs. time
7.4 Corrected one-third octave-band spectra
7.5 Overall levels
7.6 Engine performance histories
8 Reporting and test documentation
8.1 Calibration records
8.2 Weather data <\/td>\n<\/tr>\n
24<\/td>\n8.3 Test log \/ scribe notes
8.4 Instrumentation setup log
8.5 Test location data
8.6 Ground impedance data \u2013 optional far-field measurements only
8.7 Engine performance data
8.8 Raw noise measurement data
8.9 Reduced noise data <\/td>\n<\/tr>\n
26<\/td>\n8.10 Uncertainty <\/td>\n<\/tr>\n
27<\/td>\nAnnex A (normative) Measurement uncertainty for near-field noise measurements
A.1 Measurement uncertainty <\/td>\n<\/tr>\n
30<\/td>\nAnnex B (informative) Microphone cable length considerations <\/td>\n<\/tr>\n
32<\/td>\nAnnex C (normative) Obstructions and reflections
C.1 Obstructions
C.2 Field reflections check <\/td>\n<\/tr>\n
33<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

ANSI\/ASA S12.76-2017 American National Standard Methods for Measurement of Supersonic Jet Noise from Uninstalled Military Aircraft Engines<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASA<\/b><\/a><\/td>\n2017<\/td>\n36<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":197520,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2652],"product_tag":[],"class_list":{"0":"post-197518","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-asa","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/197518","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/197520"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=197518"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=197518"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=197518"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}