N.J. Admin. Code § 7:29-2.8

Current through Register Vol. 56, No. 21, November 4, 2024

Section 7:29-2.8 - Preparation for testing

(a) Survey: Prior to taking noise measurements the investigator shall explore the vicinity of the suspected source on foot to identify any other sound sources which could affect measurements, to establish the approximate location and character of the main sound source, and to select suitable points from which to measure the sound from the suspected source and the neighborhood residual sound.

(b) Nature of sound: While the sound source or sources are under observation the investigator shall ascertain whether the sound is steady state or extraneous. The duty cycle time, if any, shall be measured and noted.

(c) Wind speed measurement: The investigator shall measure the wind speed at the measurement site with an appropriate wind meter. If the wind speed does not exceed 12 miles per hour (5.4 meters per second), proceed using a sound level meter equipped with a wind screen. When the wind speed exceeds 12 miles per hour (5.4 meters per second), including gusts, sound level readings shall not be made, but shall be postponed until the wind speed decreases below 12 miles per hour (5.4 meters per second).

(d) Instrument selection: After determining the character of the sound to be measured, the investigator shall select the appropriate measuring equipment pursuant to the requirements of 7:29-2.6. If the sound is concentrated within a narrow band of frequencies, an instrument capable of octave band analysis shall be selected. If impulse sound is predominant, an instrument capable of impulse peak measurement shall be selected.

N.J. Admin. Code § 7:29-2.8

Amended by R.2007 d.227, effective 8/6/2007.
See: 38 N.J.R. 2774(a), 39 N.J.R. 3372(a).
In (b), substituted "extraneous" for "transient".