Noise Reduction Sample Clauses

Noise Reduction. The Contractor shall implement reasonable measures to mitigate nuisance noise by limiting use of noise generating equipment, vehicles, and avoid using such equipment in immediate proximity to an adjacent residential use to the extent reasonable. Construction shall be in compliance with and regulated by the State of Minnesota Pollution Control Standards, Minnesota Regulations NCP 7010, as amended.

Noise Reduction. The CONTRACTOR shall operate the facility in a manner that ensures the noise level measured at the perimeter of the facility as a result of operations does not exceed safe standards as established by the National Institute for Occupational Safety and Health (NIOSH).

Noise Reduction. All landfill equipment shall be provided with mufflers or other necessary devices to minimize the generation and migration of nuisance noise beyond the property boundaries of the Site.

Noise Reduction. The quantitative measure of sound isolation between spaces is called Noise Reduction (NR). The NR between two spaces, such as from the exterior to the interior of a dwelling, depends on the TL of the various components in the separating wall, the area of the separating wall, and the acoustical absorption n the receiving room. This value takes more into account than just the sound transmission characteristics of the wall material. Generally, values of NR are determined in one-third octave bands. A higher NR gives a lower noise level in the receiving room, indicating greater noise insulation. NLR is used to describe the reduction of environmental noise sources, such as aircraft. Lt is a single-number metric based on values of A-weighted noise reduction (NR). The greater the sound insulation in a wall, the lower the noise level in the receiving room, giving a higher NLR. The NLR is useful because it is a simpler metric to use than NR; one number is easier to apply than a set of numbers in one-third octave bands. However some building materials and components are more effective at reducing low-frequency noise than other materials or components. Since aircraft noise contains a lot of low frequency sound, it is important to ensure that insulating materials and components perform well at low frequencies. NLR is a good indicator of overall wall performance but may not be appropriate when designing modifications for aircraft noise reduction, especially if a good NLR value disguises poor low frequency insulation. Since working with a series of one-third octave TL measurements can be cumbersome, a single number descriptor based on the one-third octave values has been developed. This rating method is called the Sound Transmission Class (SIC). Like TL, the higher the STC rating for a construction method or component, the higher the sound insulation. Originally, STC ratings were developed as a single-number descriptor for the TL of interior office walls for typical office noise and speech spectra. Now, they are used, often incorrectly, for exterior walls as well. Most acoustical materials and components are commonly specified in terms of their SIC ratings. This is the physical measure, which describes the sound insulation value of a built construction system or component. It is a measure, on a logarithmic scale, of the ratio of the acoustic sound power incident on the tested piece to the acoustic sound power transmitted through it. The TL is expressed in decibels (dB). ...

Noise Reduction. Provide acoustical insulation and acoustical enclosure ventilation louvers and fan discharge silencers as necessary to achieve a maximum measured Standby Power System Equipment – Corporation Yard Foster City/EMID 16233A-26 CIP 405-755 sound pressure level (dBA) of 70 dBA when measured at 23 feet from the enclosure; protect acoustical insulation with perforated metal covers and plastic bagging to prevent damage from abrasion or weather elements.