Norma Ansi

ANSI S12.13 TR–2002

ANSI TECHNICAL REPORT

ANSI S12.13 TR–2002

Evaluating the Effectiveness of Hearing Conservation
Programs through Audiometric Data Base Analysis

Accredited Standards Committee S12, Noise
Acoustical Society of America
Standards Secretariat
35 Pinelawn Road, Suite 114E
Melville, New York 11747-3177

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ANSI S12.13 TR - 2002

ANSI Technical ReportEvaluating the Effectiveness of
Hearing Conservation Programs
through Audiometric Data Base Analysis

Secretariat

Acoustical Society of America

ANSI Technical Report Registered: 26 August 2002

American National Standards Institute, Inc.

ABSTRACT
This ANSI Technical Report describes methods for evaluating the effectiveness of hearing conservation
programs in preventingoccupational noise-induced hearing loss by using techniques for audiometric data
base analysis. The rationale is given for using the variability of threshold measurements in annual monitoring
audiograms as the basis for judging effectiveness. Guidelines are discussed concerning how to select a
restricted data base to which the analysis procedures will be applied. Specific procedures for data analysisare defined, and criterion ranges are given for classifying program effectiveness as acceptable, marginal, or
unacceptable. Sample results for industrial audiometric data bases contributed to Working Group
S12/WG12 are included as an annex for reference and illustration.

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