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ASA S12.64-2009 Part 1 (R2024)

Quantities and Procedures for Description and Measurement of Underwater Sound from Ships – Part 1: General Requirements
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ASA S12.64-2009 Part 1 (R2024)

Quantities and Procedures for Description and Measurement of Underwater Sound from Ships – Part 1: General Requirements

PUBLISH DATE 2009
ASA S12.64-2009 Part 1 (R2024)
This standard describes the measurement systems, procedures, and methodologies used for the beam aspect measurement of underwater sound pressure levels from ships for a given operating condition. The resulting quantities are reported as nominal source level values in one-third octave bands. It does not require the use of a specific ocean location, but the requirements for an ocean test site are provided. The underwater sound pressure level measurements are performed in the far-field and then corrected to a reference distance of 1 m. This standard is applicable to any and all surface vessels either manned or unmanned. This standard is not applicable to submerged vessels or to aircraft. Measurement systems are described for measurement of underwater sound pressure levels and also the distance or range between the underwater transducers and the subject vessel. Processing and reporting of the data are described, and informational guidance is provided. This standard does not specify or provide guidance on underwater noise criteria.
SDO ASA: Acoustical Society of America
Document Number S12.64 Part 1
Publication Date Sept. 30, 2009
Language en - English
Page Count
Revision Level
Supercedes
Committee
Publish Date Document Id Type View
Sept. 30, 2009 Revision