91/55445 DC : SEP 91
Superseded
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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AMENDMENT NO.1 TO BS 2497: PART 5: 1988 STANDARD REFERENCE ZERO FOR THE CALIBRATION OF PURE TONE AIR CONDUCTION AUDIOMETERS. PART 5: SPECIFICATION FOR A STANDARD REFERENCE ZERO USING AN ACOUSTIC COUPLER COMPLYING WITH BS 4668 (ISO 389: 1985/DAM 1)
Published date
23-11-2012
Publisher
Superseded date
15-03-1995
Superseded by
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| Committee |
EPC/1
|
| DocumentType |
Draft
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
Summarise
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