3.25 sound intensity level. Ten times the logarithm to the base ten of the ratio of the time-average intensity of a given sound in a stated direction to the reference value for sound intensity of 1 picowatt per square meter (1 pW/m2). Unit, decibel (dB); abbreviation, IL; symbol, LI.
« Back to Standards Terminolgy IndexRecent Posts
- Standards Spotlight Pt. 2: Enhancing Acoustics in Student Gymnasiums and Fitness Spaces
- Standards Spotlight Pt 1: Why ASA/ANSI S12.60-2019/Part 4 (R2024) is Essential for Physical Education Spaces
- Newly Reaffirmed ASA Standards
- Level3IR Joins ASA Standards: Advancing Infrared Consulting Excellence
- ASA Standards Publishes Newly Revised Standard: S12.61-2024
Recent Comments