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BSI 22/30456361 DC:2022 Edition

BSI 22/30456361 DC:2022 Edition

$13.70

Pneumatic fluid power — Test methods for measuring acoustic emission pressure levels of exhaust silencers

Published By Publication Date Number of Pages
BSI 2022 43
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PDF Catalog

PDF Pages PDF Title
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
11 4 Symbols and abbreviated terms
5 Test set-up
5.1 Test bench
5.2 Pneumatic pressure measurement
5.3 Flow measurement
5.4 Sound pressure measurement
5.4.1 Measurement at one position
12 5.4.2 Measurement at three positions
13 5.5 Acoustic instrumentation
14 6 Test procedure
6.1 Characterization and validation of the test facilities
6.2 Quantities to be measured
6.2.1 Basic quantities to be measured
6.2.2 Acquisition parameters of basic quantities€— Steady-state mode
6.2.3 Acquisition parameters of basic quantities€— Discharge mode
15 6.3 Measurements
6.3.1 Generalities
6.3.2 Specimens tested
6.3.3 Specific cases
16 6.3.4 Ambient conditions during measurement
6.4 The acoustic quantity to be determined
6.5 Calculation of background noise correction K1A
17 6.5.1 Case of measurement in steady-state model
6.5.2 Case of measurement in discharge mode
18 6.6 Uncertainty on measurement
7 Presentation of test results
7.1 Information to be written in the test report
19 7.2 Information to be declared
8 Identification statement
20 Annex€A (normative) Calculation of environmental correction K2A
22 Annex€B (informative) Example of the acoustic correction of industrial facilities
26 Annex€C (informative) Example of reports
28 Annex€D (informative) Uncertainties
31 Annex€E (informative) Sound attenuation effect of silencers
43 Bibliography

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BSI 22/30456361 DC
$13.70