{"id":197503,"date":"2024-10-19T12:34:15","date_gmt":"2024-10-19T12:34:15","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/asa-s12-68-2007-r2017\/"},"modified":"2024-10-25T05:07:50","modified_gmt":"2024-10-25T05:07:50","slug":"asa-s12-68-2007-r2017","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/asa\/asa-s12-68-2007-r2017\/","title":{"rendered":"ASA S12.68 2007 R2017"},"content":{"rendered":"
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PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
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13<\/td>\n | 1 Scope and Applications 1.1 Scope 1.2 Applications <\/td>\n<\/tr>\n | ||||||
15<\/td>\n | 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
16<\/td>\n | 4 Measurement of Sound Attenuation of Hearing Protectors 5 Noise Level Reduction Statistic for Use with A-Weighting (NRSA 5.1 Introduction 5.2 Calculation <\/td>\n<\/tr>\n | ||||||
18<\/td>\n | 5.3 Application <\/td>\n<\/tr>\n | ||||||
19<\/td>\n | 6 Noise Level Reduction Statistic, Graphical (NRSG 6.1 Introduction 6.2 Calculation <\/td>\n<\/tr>\n | ||||||
21<\/td>\n | 6.3 Application <\/td>\n<\/tr>\n | ||||||
22<\/td>\n | 7 Octave-Band Method 7.1 Introduction 7.2 Calculation <\/td>\n<\/tr>\n | ||||||
23<\/td>\n | 7.3 Application <\/td>\n<\/tr>\n | ||||||
25<\/td>\n | Annex A (normative) Noise Spectra Used in Calculating the NRSA and NRSG <\/td>\n<\/tr>\n | ||||||
30<\/td>\n | Annex B (informative) Spreadsheet Illustrating Calculation and Use of the NRSA and NRSG <\/td>\n<\/tr>\n | ||||||
33<\/td>\n | Annex C (informative) Example of the Calculation of the Assumed Protection Values and the \n Use of the Octave-Band Method <\/td>\n<\/tr>\n | ||||||
34<\/td>\n | Annex D (informative) Calculation of the Confidence Interval for the NRSA80 <\/td>\n<\/tr>\n | ||||||
39<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" ANSI\/ASA S12.68-2007 (R2017) American National Standard Methods of Estimating Effective A-Weighted Sound Pressure Levels When Hearing Protectors are Worn<\/b><\/p>\n |