Measurements should be made in accordance with American National Standards Institute
Quantities and Procedures for Description and Measurement of Environmental Sound, Part 3:Short-term Measurements with an Observer Present.
Adm.
Code 900.101 using a period of observation
that is commensurate with the variability of the sound in question. ANSI S 12.9Part 1 (one of the added references) has a 12 dB adjustment for “highly impulsive” sounds (e.g.,gunfire, metal hammering, wood hammering), 5 dB for “regular impulsive” sounds, and aseparate procedure for “high energy impulsive” sounds (e.g., q...
Allowed
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