ASA S3.6 2018
$91.54
ANSI/ASA S3.6-2018 American National Standard Specification for Audiometers
| Published By | Publication Date | Number of Pages |
| ASA | 2018 | 68 |
None
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 11 | 1 Scope, purpose, and applications 1.1 Scope 1.2 Purpose 1.3 Applications 2 Normative references |
| 13 | 3 Terms and definitions |
| 18 | 4 Requirements for specific types of audiometers 4.1 Type and class designation |
| 19 | 5 General requirements 5.1 Electrical safety requirements 5.2 Acoustic safety requirements 5.3 Power supply variation and environment conditions |
| 21 | 5.4 Unwanted acoustic signals |
| 23 | 5.5 Subject response system 5.6 Monitor earphone or loudspeaker 5.7 Operator and test subject speech communications |
| 24 | 6 Signal sources 6.1 Pure-tone source |
| 27 | 6.2 Speech source |
| 29 | 6.3 Masking sounds |
| 31 | 7 Signal level controls 7.1 Marking 7.2 Accuracy of sound pressure and vibratory force level for pure-tone and speech |
| 32 | 7.3 Hearing level control 7.4 Masking sound level control |
| 33 | 7.5 Tone switching |
| 35 | 8 Reference signal facilities 8.1 Frequencies 8.2 Reference signal level control 9 Transducer calibration (specifications, RETSPLs, and RETFLs |
| 36 | 9.1 Air-conduction supra-aural earphones |
| 37 | 9.2 Air conduction, circumaural earphones |
| 38 | 9.3 Air conduction, insert earphones |
| 42 | 9.4 Bone conduction |
| 43 | 9.5 Sound field produced via loudspeakers |
| 46 | 10 Device marking and instruction manual 10.1 Marking 10.2 Instruction manual |
| 48 | Annex A (normative) Correction figures for free-field equivalent output for certain types of commonly used earphones |
| 50 | Annex B (normative) Recordings of speech test material |
| 51 | ii © 2018 Acoustical Society of America – All rights reserved Annex C (normative) Calibration of circumaural earphones for extended high-frequency testing C.1 General C.2 Calibration C.3 Microphone C.4 Adapters for making extended high-frequency measurements on an IEC 60318-1 ear simulator C.5 Coupler configurations using a Type 1 adapter |
| 54 | C.6 Coupler configuration using a Type 2 adapter C.7 Environmental conditions C.8 References |
| 55 | Annex D (informative) Procedures for transfer of reference equivalent threshold values D.1 General D.2 Probe-tube method |
| 56 | D.3 Loudness-balance method D.4 Threshold-determination method D.5 Standard reference earphone with other-than-specified coupler |
| 57 | D.6 Standard earphones with other-than-specified cushions D.7 Earphone and coupler both different from standard types |
| 58 | Annex E (informative) Audiogram format E.1 General E.2 Reference levels E.3 Vertical scale E.4 Horizontal scale E.5 Scale proportions |
| 59 | Annex F (informative) Supra-aural cushions for earphones |
| 61 | Annex G (informative) Requirements for periodic calibration G.1 Minimum periodic calibration requirements G.2 Routine checking and subjective tests |
| 65 | G.3 Equipment needed to perform audiometer calibrations G.4 Calibration of test equipment |
