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BSI PD ISO/TS 19425:2024

BSI PD ISO/TS 19425:2024

$142.49

Reciprocating internal combustion engines. Measurement method for air cleaners. Sound power level of combustion air inlet noise and insertion loss using sound pressure

Published By Publication Date Number of Pages
BSI 2024 30
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PDF Catalog

PDF Pages PDF Title
2 undefined
6 Foreword
7 1 Scope
2 Normative references
3 Terms and definitions
11 4 Test environment
4.1 General
4.2 Criterion for background noise
12 4.3 Criterion for acoustic adequacy of test environment
5 Instrumentation
5.1 General
5.2 Calibration
13 5.3 Application
6 Installation and operation conditions
6.1 General
6.2 Installation condition
14 6.3 Operation condition
15 7 Measurement
7.1 General
7.2 Measurement uncertainty
16 7.3 Characteristic source dimension
7.4 Measurement radius
7.5 Measurement surface and area
7.6 Microphone arrays
18 8 Calculation
8.1 General
8.2 Calculation of sound power level
8.2.1 Mean time-averaged sound pressure levels
19 8.2.2 Corrections for background noise
8.2.3 Corrections for environmental
20 8.2.4 Surface time-averaged sound pressure levels
8.2.5 Sound power levels
8.3 Calculation of insertion loss
21 9 Information to be recorded
22 10 Test report
23 Annex A (normative) Qualification procedures for the acoustic environment
26 Annex B (normative) Calculation of A-weighted sound power levels from frequency band levels
28 Annex C (normative) Sound power level under reference meteorological conditions
29 Bibliography

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BSI PD ISO/TS 19425:2024
$142.49