ANSI S3.39 : 1987 : R2007

1 SCOPE
2 PURPOSE
3 APPLICATIONS
4 REFERENCES TO OTHER STANDARDS
   4.1 American National Standards
   4.2 Other National Standards
5 DEFINITIONS
   5.1 Acoustic Immittance
   5.2 Acoustic Impedance
   5.3 Acoustic Resistance
   5.4 Acoustic Reactance
   5.5 Acoustic Admittance
   5.6 Acoustic Conductance
   5.7 Acoustic Susceptance
   5.8 Acoustic Mass (Acoustic Inertance)
   5.9 Acoustic Stiffness
   5.10 Acoustic Compliance (Acoustic Capacitance)
   5.11 Acoustic Equivalent Volume
   5.12 Air-Pressure (excess)
   5.13 Probe
   5.14 Probe Tip
   5.15 Probe signal
   5.16 Probe Ear
   5.17 Measurement Plane
   5.18 Static Acoustic Immittance
   5.19 Compensated Static Acoustic Immittance
   5.20 Dynamic Acoustic Immittance
   5.21 Tympanometry
   5.22 Tympanogram
   5.23 Middle-Ear Muscle Reflex
   5.24 Acoustic-Reflex Activating Stimulus
   5.25 Nonacoustic Reflex Activating Stimulus
   5.26 Stimulus Ear
   5.27 Ipsilateral Reflex
   5.28 Contralateral Reflex
   5.29 Reflex-Modified Acoustic Immittance
6 TYPES OF AURAL ACOUSTIC-IMMITTANCE INSTRUMENTS
7 CHARACTERISTICS AND SPECIFICATIONS FOR AURAL
   ACOUSTIC-IMMITTANCE INSTRUMENTS
   7.1 The Acoustic-Immittance Measurement System
   7.2 The Probe System
   7.3 The Probe Signals
   7.4 The Pneumatic System
   7.5 The Acoustic-Reflex Activating (Stimulus) System
   7.6 The Nonacoustic Reflex-Activating (Stimulus) System
   7.7 Electrical Output Coincident with Stimulus Signals
8 GENERAL REQUIREMENTS
   8.1 Safety Requirements
   8.2 Warmup Time
   8.3 Calibration Stability
   8.4 Unwanted Acoustic Signals and Radiation
   8.5 Marking
   8.6 Instruction Manual
9 SYMBOLS, FORMS, AND FORMATS FOR ACOUSTIC-IMMITTANCE
   DATA
   9.1 Recommended Symbols and Standard Abbreviations for
        Measured Quantities
   9.2 Tympanogram Format
   9.3 Format for Measurement of Middle-Ear Muscle Reflexes
   9.4 Format for Evaluation of Eustachian-Tube Function
10 CALIBRATION CAVITIES AND ACOUSTIC COUPLERS
   10.1 General
   10.2 Cavities for Calibration of Acoustic Immittance and Air
        Pressure
   10.3 Acoustic Couplers
APPENDIX A: DESIGN AND CONSTRUCTION OF AURAL ACOUSTIC-IMMITTANCE
            INSTRUMENTS
APPENDIX B: MEASUREMENT OF THE TEMPORAL CHARACTERISTICS OF
            ACOUSTIC-IMMITTANCE INSTRUMENTS
APPENDIX C: REFERENCES
TABLES
FIGURES

Provides instruments that are designed primarily for the measurement of acoustic impedance, acoustic admittance, or both quantities, within the human external auditory meatus.