ANSI/ASA S12.42 : 2010
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
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
Hardcopy , PDF
10-02-2020
English
11-01-2010
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1 Scope
2 Normative references
3 Terms and definitions
4 Applicability of the test methods
5 Requirements for product samples and band force
6 Acoustic test fixture(s) - continuous and impulsive
noise methods
7 Continuous noise methods - MIRE test subjects
8 Continuous noise methods - facilities and
instrumentation (MIRE and ATF)
9 Continuous noise methods - test procedures and
data reduction (MIRE and ATF)
10 Impulsive noise methods - facilities and
instrumentation (ATF)
11 Impulsive noise methods - test procedures and data
reduction (ATF)
Annex A (normative) - Procedure for measurement of
the band force of semi-insert devices
Annex B (informative) - Acoustic Test Fixtures (ATF) -
general information
Annex C (normative) - Procedure for measuring head
dimensions
Annex D (informative) - Methods for mounting MIRE
microphones in the ear
Annex E (normative) - Procedure for MIRE AIL measurement
of ANR deep-insert custom-molded earplugs
Annex F (informative) - Uncertainty for continuous noise
methods
Annex G (informative) - Procedure for generation of
impulsive noise
Annex H (informative) - Example MATLAB[R] code for computing
impulsive peak insertion loss
Annex I (informative) - Uncertainty for impulsive noise
method
Bibliography
Gives methods for the measurement of the insertion loss of hearing protection devices in specified continuous and impulsive noise environments.
| Committee |
S12
|
| DocumentType |
Standard
|
| Pages |
66
|
| ProductNote |
THIS STANDARD ALSO REFERS TO ANSI S12.6
|
| PublisherName |
Acoustical Society of America
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| ANSI S12 PT6 : 2016 | METHODS FOR MEASURING THE REAL-EAR ATTENUATION OF HEARING PROTECTORS |
| ANSI S12.68 : 2007 | METHODS OF ESTIMATING EFFECTIVE A-WEIGHTED SOUND PRESSURE LEVELS WHEN HEARING PROTECTORS ARE WORN |
| ANSI S3.36 : 2012 | SPECIFICATION FOR A MANIKIN FOR SIMULATED IN-SITU AIRBORNE ACOUSTIC MEASUREMENTS |
| ANSI/ASA S12.68 : 2007(R2017) | METHODS OF ESTIMATING EFFECTIVE A-WEIGHTED SOUND PRESSURE LEVELS WHEN HEARING PROTECTORS ARE WORN |
| MIL-PRF-87819-4 Revision A:2009 | HEADSET-MICROPHONE, HEARING PROTECTIVE TYPE MODERATE AMBIENT NOISE LEVELS, UP TO 105 DB, INFLIGHT AIRCREW HEADSET-MICROPHONE, M87819/4-01 |
| MIL-PRF-87819 Revision B:2009 | HEADSET-MICROPHONE, (HEARING PROTECTIVE TYPE, HIGH AND MODERATE AMBIENT NOISE LEVELS), GENERAL SPECIFICATION FOR |
| ANSI S12.68 : 2007 : R2012 | METHODS OF ESTIMATING EFFECTIVE A-WEIGHTED SOUND PRESSURE LEVELS WHEN HEARING PROTECTORS ARE WORN |
| MIL-STD-1474 Revision E:2015 | NOISE LIMITS |
| ANSI/ASA S3.36:2012(R2018) | SPECIFICATION FOR A MANIKIN FOR SIMULATED IN-SITU AIRBORNE ACOUSTIC MEASUREMENTS |
| CSA Z94.2 : 2014 | HEARING PROTECTION DEVICES - PERFORMANCE, SELECTION, CARE, AND USE |
| ANSI/ASA S1.1:2013 | ACOUSTICAL TERMINOLOGY |
| ANSI S12 PT6 : 2016 | METHODS FOR MEASURING THE REAL-EAR ATTENUATION OF HEARING PROTECTORS |
| ANSI S1.11 : 2014 | SPECIFICATION FOR OCTAVE-BAND AND FRACTIONAL-OCTAVE-BAND ANALOG AND DIGITAL FILTERS |
| IEC 61094-4:1995 | Measurement microphones - Part 4: Specifications for working standard microphones |
| ANSI/ASA S3.20 : 2015 | American National Standard Bioacoustical Terminology |
| ISO 4869-1:1990 | Acoustics Hearing protectors Part 1: Subjective method for the measurement of sound attenuation |
| ISO 4869-3:2007 | Acoustics — Hearing protectors — Part 3: Measurement of insertion loss of ear-muff type protectors using an acoustic test fixture |
| MIL-STD-912 Base Document:1990 | PHYSICAL EAR NOISE ATTENUATION TESTING |
| ISO/TR 4869-4:1998 | Acoustics Hearing protectors Part 4: Measurement of effective sound pressure levels for level-dependent sound-restoration ear-muffs |
| ISO/IEC Guide 98-3:2008 | Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) |
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