Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 910 - MEASUREMENT PROCEDURES FOR THE ENFORCEMENT OF 35 ILL. ADM. CODE 900 AND 901
Section 910.102 - Instrumentation
Universal Citation: 35 IL Admin Code ยง 910.102
Current through Register Vol. 48, No. 38, September 20, 2024
a) Sound Measuring Equipment
1) Use an integrating sound level
meter alone or in conjunction with an octave-band or 1/3 octave-band filter set
or a real-time sound analyzer (octave-band or 1/3 octave-band) that complies
with the following standards incorporated by reference at 35 Ill. Adm. Code
900.106:
A) ANSI/ASA S1.4 -2014/Part 1/IEC
61672:1-2013 "American National Standard Electroacoustics - Sound Level Meters
- Part 1: Specifications (a nationally adopted international
standard)".
B) ANSI/ASA S1.11
-2014/Part1/IEC 61260:1-2014 Electroacoustics - Octave-Band and
Fractional-Octave-Band Filters - Part 1: Specifications (a nationally adopted
international standard)".
C)
ANSI/ASA S1.6 -2016 "Preferred Frequencies and Filter Band Center Frequencies,
for Acoustical Measurements".
D)
ANSI/ASA S1.8
-2016 "Reference Values for Levels Used in Acoustics and Vibrations".
E) IEC 61672-1:2013 "Electroacoustics Sound
Level Meters - Part 1: Specifications".
2) Use a magnetic tape recorder, graphic
level recorder or other indicating device conforming with the SAE Recommended
Practice J184 "Qualifying a Sound Data Acquisition System", August 2014,
incorporated by reference at 35 Ill. Adm. Code 900.106.
3) Calibrate sound measuring equipment
traceable to the National Bureau of Standards at least once every 12
months.
4) For outdoor measurement,
use a microphone with an attached windscreen.
b) Weather Measuring Equipment
1) Us an anemometer and compass or other
devices to measure wind speed and direction in compliance with the
manufacturer's recommended procedures.
2) Use a thermometer, designed to measure
ambient temperature, in compliance with the manufacturer's recommended
procedures.
3) Use a hygrometer in
compliance with the manufacturer's recommended procedures to measure the
relative humidity.
4) Use a
barometer in compliance with the manufacturer's recommended procedures to
measure the barometric pressure.
Disclaimer: These regulations may not be the most recent version. Illinois may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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