3.17 day-average sound level. Time-average frequency-weighted sound level between 0700 and 2200 hours. Unit, decibel (dB); abbreviation, DL; symbol, Ld.
« Back to Standards Terminolgy Index
3.17 day-average sound level. Time-average frequency-weighted sound level between 0700 and 2200 hours. Unit, decibel (dB); abbreviation, DL; symbol, Ld.
« Back to Standards Terminolgy Index
To generate, disseminate, and promote the knowledge and practical applications of acoustics
Acoustical Society of America
1305 Walt Whitman Road
Suite 110
Melville, NY 11747-4300
Tel: 516-576-2360
Fax: 516-576-2377
Email: asa@acousticalsociety.org
Website: acousticalsociety.org
Web Development Office:
dfarrell@acousticalsociety.org
Designed by ASA Web Development Office | © Acoustical Society of America | Privacy Policy
Recent Comments