{"id":197464,"date":"2024-10-19T12:34:07","date_gmt":"2024-10-19T12:34:07","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/asa-s12-42-2010\/"},"modified":"2024-10-25T05:07:42","modified_gmt":"2024-10-25T05:07:42","slug":"asa-s12-42-2010","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/asa\/asa-s12-42-2010\/","title":{"rendered":"ASA S12.42 2010"},"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\n\n\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
13<\/td>\n1 Scope
2 Normative references <\/td>\n<\/tr>\n
14<\/td>\n3 Terms and definitions <\/td>\n<\/tr>\n
16<\/td>\n4 Applicability of the test methods <\/td>\n<\/tr>\n
17<\/td>\n5 Requirements for product samples and band force
5.1 Required number of HPD samples <\/td>\n<\/tr>\n
18<\/td>\n5.2 Measurement of band force
5.3 Devices with adjustable band force
6 Acoustic test fixture(s) \u2013 continuous and impulsive noise methods
6.1 Introduction <\/td>\n<\/tr>\n
19<\/td>\n6.2 Critical dimensions
6.3 Self insertion loss
6.4 Microphone and preamplifier requirements <\/td>\n<\/tr>\n
20<\/td>\n6.5 Earcanal couplers
6.6 Earcanal extension
6.7 Flesh simulation
7 Continuous noise methods \u2013 MIRE test subjects
7.1 Anatomical features
7.2 Otoscopic inspection <\/td>\n<\/tr>\n
21<\/td>\n7.3 Measurement of head dimensions
7.4 Gender balance
7.5 Eyeglasses and jewelry
7.6 Number of subjects
7.7 Subjects for MIRE tests of ANR devices
8 Continuous noise methods \u2013 facilities and instrumentation (MIRE and ATF
8.1 Test signals <\/td>\n<\/tr>\n
22<\/td>\n8.2 Sound field characteristics <\/td>\n<\/tr>\n
23<\/td>\n8.3 Fitting noise
8.4 Head position reference device
8.5 Observation of subjects <\/td>\n<\/tr>\n
24<\/td>\n8.6 Instrumentation
8.7 Microphones \u2013 MIRE method <\/td>\n<\/tr>\n
25<\/td>\n9 Continuous noise methods \u2013 test procedures and data reduction (MIRE and ATF
9.1 Introduction <\/td>\n<\/tr>\n
26<\/td>\n9.2 Verification of test spectrum and signal level <\/td>\n<\/tr>\n
27<\/td>\n9.3 Fitting of HPDs <\/td>\n<\/tr>\n
28<\/td>\n9.4 Measurement of insertion loss <\/td>\n<\/tr>\n
30<\/td>\n9.5 Number and sequence of measurements <\/td>\n<\/tr>\n
34<\/td>\n9.6 Data analysis <\/td>\n<\/tr>\n
36<\/td>\n9.7 Uncertainty for continuous noise methods
9.8 Information to be included in the test report <\/td>\n<\/tr>\n
37<\/td>\n9.9 Graphical presentation of the data
ii \u00a9 2010 Acoustical Society of America \u2013 All rights reserved
\n 10 Impulsive noise methods \u2013 facilities and instrumentation (ATF
10.1 Impulse characteristics <\/td>\n<\/tr>\n
38<\/td>\n10.2 Instrumentation
10.3 Free-field pressure probe \/ microphone <\/td>\n<\/tr>\n
39<\/td>\n10.4 Positioning of the ATF and free-field pressure probe <\/td>\n<\/tr>\n
40<\/td>\n11 Impulsive noise methods \u2013 test procedures and data reduction (ATF
11.1 Introduction
11.2 Measurement of time waveforms <\/td>\n<\/tr>\n
41<\/td>\n11.3 Computation of the peak insertion loss <\/td>\n<\/tr>\n
42<\/td>\n11.4 Uncertainty for impulsive noise method <\/td>\n<\/tr>\n
43<\/td>\n11.5 Information to be included in the test report <\/td>\n<\/tr>\n
44<\/td>\nAnnex A (normative) Procedure for measurement of the band force of semi-insert devices <\/td>\n<\/tr>\n
46<\/td>\nAnnex B (informative) Acoustic Test Fixtures (ATF) \u2013 general information <\/td>\n<\/tr>\n
48<\/td>\nAnnex C (normative) Procedure for measuring head dimensions <\/td>\n<\/tr>\n
49<\/td>\nAnnex D (informative) Methods for mounting MIRE microphones in the ear <\/td>\n<\/tr>\n
51<\/td>\nAnnex E (normative) Procedure for MIRE AIL measurement of ANR deep-insert custom-molded
\n earplugs <\/td>\n<\/tr>\n
52<\/td>\nAnnex F (informative) Uncertainty for continuous noise methods
F.1 MIRE uncertainty <\/td>\n<\/tr>\n
53<\/td>\nF.2 ATF uncertainty <\/td>\n<\/tr>\n
55<\/td>\nAnnex G (informative) Procedure for generation of impulsive noise
G.1 Introduction
G.2 Shock tube <\/td>\n<\/tr>\n
56<\/td>\nG.3 Explosive discharge <\/td>\n<\/tr>\n
58<\/td>\nAnnex H (informative) Example MATLAB\u00ae code for computing impulsive peak insertion loss <\/td>\n<\/tr>\n
62<\/td>\nAnnex I (informative) Uncertainty for impulsive noise method <\/td>\n<\/tr>\n
64<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

ANSI\/ASA S12.42-2010 American National Standard Methods for the Measurement of Insertion Loss of Hearing Protection Devices in Continuous or Impulsive Noise Using Microphone-in-Real-Ear or Acoustic Test Fixture Procedures<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASA<\/b><\/a><\/td>\n2010<\/td>\n66<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":197467,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2652],"product_tag":[],"class_list":{"0":"post-197464","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\/197464","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\/197467"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=197464"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=197464"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=197464"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}