Acoustics. Noise emitted by machinery and equipment. Engineering method for the determination of emission sound pressure levels in situ at the work station and at other specified positions using sound intensity (ISO 11205:2003)
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ISO 11205:2003 specifies an engineering method (grade 2 accuracy) to determine the emission sound pressure level of machines in situ, at the work station or at other specified positions, using sound intensity. It is an alternative to ISO 11201, ISO 11202 and ISO 11204 for in situ measurements. It is applicable to all kinds of test environments provided that the requirements on background noise and field indicators are fulfilled. ISO 11205:2003 is applicable to equipment emitting stationary broadband noise. The noise can differ between operational cycles and can be with or without discrete frequency or narrow band components.
Tämän julkaisun valmistelusta Suomessa vastaa Metalliteollisuuden Standardisointiyhdistys ry, puh. 09 19 231 (vaihde).
Sisällysluettelo
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Measurement uncertainty
5 Principle
6 Instrumentation
6.1 General
6.2 Calibration
7 Installation and operation of the source
7.1 General
7.2 Location of the machine
7.3 Mounting of the machine
7.4 Auxiliary equipment
7.5 Operation of the machine under test
8 Test procedure
8.1 Applicability
8.2 Measurement time interval
8.3 Measurements
8.4 Wind and gas flows
8.5 Criteria for qualification of the measurement
8.6 Criterion for background noise
8.7 Frequency range of measurements
8.8 Evaluation of the measurement result
9 Information to be recorded
9.1 General
9.2 Machine under test
9.3 Test conditions
9.4 Acoustic environment
9.5 Instrumentation
9.6 Location of specified positions
9.7 Noise data
10 Information to be reported
Annex A Criterion for the adequacy of the direction of the sound intensity vector (normative)
Annex B Procedure for frequencies higher than 5 000 Hz (normative)
Annex C Procedure in case the measurement fails to qualify (normative)
IEC 60942:2003
IEC 61043:1993
ISO 12001:1996 Acoustics -- Noise emitted by machinery and equipment -- Rules for the drafting and presentation of a noise test code
IEC 60942:2003
IEC 61043:1993
ISO 12001:1996 Acoustics -- Noise emitted by machinery and equipment -- Rules for the drafting and presentation of a noise test code
ISO 7574-1:1985 Acoustics -- Statistical methods for determining and verifying stated noise emission values of machinery and equipment -- Part 1: General considerations and definitions