CSA Z107.4 : 1986
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
PURE TONE AIR CONDUCTION AUDIOMETERS FOR HEARING CONSERVATION AND FOR SCREENING
Hardcopy , PDF
25-11-2011
French
01-01-2006
Technical Committee on Acoustics and Noise Control
Preface
1 Scope
2 Definitions
3 Reference Publications
4 General Requirements for Pure Tone Air Conduction
Audiometers
4.1 General
4.2 Earphones and Cushions
4.3 Headband
4.4 Shock Hazard
4.5 Stability with Respect to Variations in Supply
Voltage
4.6 Stability with Respect to Ambient Temperature
Variations
5 Specific Requirements for Pure Tone Air Conduction
Audiometers
5.1 Frequencies
5.2 Purity of Tones
5.3 Accuracy of Tone Frequencies
5.4 Signal Levels
5.5 Signal Presentation
6 Unwanted Sound from the Audiometer
6.1 Sound from the Test Earphone
6.2 Sound from the Second Earphone
6.3 Other Unwanted Sound
7 Maximum Ambient Noise
Tables
Figures
Appendices
A - Supplementary Information
B - Maintenance and Calibration of Audiometric Equipment
C - Earphone Cushions
Bibliography
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.