Sound level measurements shall be made with a sound level meter using the A-weighting scale, in accordance with standards promulgated by the American National Standards Institute or other reasonable standards adopted and tested by the health department. An L90 measurement shall have a measurement period no less than ten minutes unless otherwise stated in this chapter.
(1972 Code, § 9-4; 1992 Code, § 25.5-4) (Ord. 72-78, passed 7-10-1978; Ord. 6-10, passed 2-10-2010)