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IEC 60645-1 REDLINE : 4ED 2017

IEC 60645-1 REDLINE : 4ED 2017

ELECTROACOUSTICS - AUDIOMETRIC EQUIPMENT - PART 1: EQUIPMENT FOR PURE-TONE AND SPEECH AUDIOMETRY

International Electrotechnical Committee

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Table of Contents

FOREWORD<br>INTRODUCTION<br>1 Scope <br>2 Normative references <br>3 Terms and definitions <br>4 Requirements by type and class of audiometer<br>5 General requirements <br>6 Test signals<br>7 Transducers <br>8 Signal level control <br>9 Reference tone <br>10 Calibration<br>11 Electrical output of test signals <br>12 Audiogram format <br>13 Test requirements to demonstrate conformity <br>14 Maximum permitted expanded uncertainty of<br>&nbsp;&nbsp;&nbsp;measurements U[max]<br>15 Marking and instruction manual<br>Annex A (informative) - Relationship between<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;tolerance interval, corresponding acceptance<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;interval and the maximum permitted<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;uncertainty of measurement<br>Bibliography

Abstract

Describes general requirements for audiometers designed for use in determining hearing threshold levels, relative to standard reference threshold levels established by means of psychoacoustic test methods, and those designed to perform psychoacoustic tests using speech material.

General Product Information

Document Type Standard
Status Current
Publisher International Electrotechnical Committee
Committee TC 29

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