BS 7676-1:1993
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Acceptance code for gears Determination of airborne sound power levels emitted by gear units
Hardcopy , PDF
English
15-08-1993
30-08-2002
Committees responsible
National foreword
Introduction
Method
1 Scope
2 Normative references
3 Definitions
4 Instrumentation
5 Test conditions
6 Procedure for obtaining sound pressure level data
7 Determination of A-weighted sound power level
8 Evaluation of octave and one-third-octave sound
power
9 Test report
Annexes
A (normative) Procedures for calculating A-weighted
sound pressure or power levels from octave or
one-third-octave band spectra
B (normative) Practicable measurement applications
C (normative) Determination of the environmental
correction K2 for acoustic reaction in a test room
with the aid of a reference sound source
D (informative) Bibliography
Tables
1 Measurement-surface quantity, Ls
2 Correction values, K1, for background noise
3 Environmental correction factor, K2
4 Standard deviations of the measurement uncertainty
A.1 Octave band data
A.2 One-third-octave band data
Figures
1 Example of machinery mounted on the floor or by a
wall
2 Measurement-point arrangement for figure 1
3 Example of machinery mounted on the floor or near
to a wall
4 Measurement-point arrangement for figure 3
5 Example of machinery mounted in a pit with hard
sound-reflecting walls
6 Measurement-point arrangement for figure 5
7 Example of machinery mounted at considerable
distance from a sound-reflecting surface
8 Surface-measurement-point arrangement for figure 7
Specifies the conditions under which sound emitted from gear units is determined in order to establish a common procedure for comparison. Applies to all power transmission gearing other than gears for fine mechanisms. Includes definitions, annexes, tables and diagrams.
| Committee |
MCE/5
|
| DevelopmentNote |
BS DRAFT FOR COMMENT 89/72665 DC
|
| DocumentType |
Standard
|
| Pages |
20
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| ISO 8579-1:2002 | Identical |
| ISO 8579-1:1993 | Identical |
| ISO 3744:2010 | Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Engineering methods for an essentially free field over a reflecting plane |
| IEC 60225:1966 | Octave, half-octave and third-octave band filters intended for the analysis of sounds and vibrations |
| IEC 60651:1979+AMD1:1993+AMD2:2000 CSV | Sound level meters |
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