BS ISO 20155:2017
Current
The latest, up-to-date edition.
Hardcopy , PDF
English
11-09-2017
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Two-port source model and test method of source
characteristic of pump
5 Test rig
6 Instrumentation
7 Test preparation
8 Test procedure
9 Data processing
10 Evaluation criteria for the test result
11 Test report
Annex A (informative) - Theoretical models of a two-port
source and transformation mutually between matrix
Z, S, T
Annex B (informative) - Evaluation of quantities at inlet and
outlet ports
Annex C (informative) - Judgment of effectiveness for the test
Annex D (informative) - Formulae for determining passive
characteristics of noise source
Annex E (informative) - Formulae for determining active
characteristics of source
Annex F (informative) - Verification of test method taking a
T-shaped sound excitor as a two-port acoustic source
Bibliography
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