BS 4668:1971
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Specification for an acoustic coupler (IEC reference type) for calibration of earphones used in audiometry
Hardcopy , PDF
English
22-02-1971
15-07-2001
NO CONTENTS SECTION
Specifies a reference coupler for loading an earphone with specified acoustic impedance when calibrating audiometers for the frequency range 125 Hz to 8000 Hz.
| Committee |
EPL/29
|
| DocumentType |
Standard
|
| Pages |
10
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
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