Ambient sound pressure level definition

Ambient sound pressure level means the sound pressure level or the all- encompassing noise associated with a given environment usually a composite of sounds from many sources.
Sample 1Sample 2Sample 3
Ambient sound pressure level means the sound pressure level of the all-encompassing noise associated with a given environment, usually a composite of sounds from many sources, It is also the A-weighted sound pressure level exceeded ninety percent of the time based on a measurement period which shall not be less than ten minutes.
Sample 1Sample 2
Ambient sound pressure level means the sound pressure level or the all-
Sample 1Sample 2Sample 3

More Definitions of Ambient sound pressure level

Ambient sound pressure level means the sound pressure level of the all encompassing noise associated with a given environment usually a composite of sounds from many sources. It is also the A-weighted sound pressure level exceeded ninety (90) per cent of the time based on a measurement period of not less than ten (10) minutes nor more than thirty (30) minutes.
Sample 1
Ambient sound pressure level means the sound pressure level which represents the summation of the sound from all the discrete sources affecting a given site at a given time, exclusive of extraneous sounds and those from the source under investigation. Ambient sound level is often referred to as neighborhood residual sound level or background sound pressure level. Ambient sounds are different than extraneous sounds by the fact that the former are of a more steady state, although they may not be continuous.
Sample 1

Related to Ambient sound pressure level

  • Sound pressure level means twenty times the logarithm to the base 10 of the ratio of the effective pressure (µPa) of a sound to the reference pressure of 20 µPa;

  • Reid vapor pressure means the vapor pressure of crude oil or other volatile petroleum products at 100 degrees Fahrenheit as determined by the latest edition of ASTM D6377 (RVPE): Standard Test Method for Determination of Vapor Pressure of Crude Oil.

  • Working voltage means the highest value of an electrical circuit voltage root-mean-square (rms), specified by the manufacturer, which may occur between any conductive parts in open circuit conditions or under normal operating conditions. If the electrical circuit is divided by galvanic isolation, the working voltage is defined for each divided circuit, respectively.

  • Ambient air means that portion of the atmosphere, external to buildings, to which the general public has access.

  • medium voltage means the set of nominal voltage levels that lie above low voltage and below high voltage in the range of 1 kV < Un 44 kV. [SANS 1019]

  • CO2 means carbon dioxide.

  • Operating pressure means the pressure at which the parts of an irrigation system are designed by the manufacturer to operate.

  • True vapor pressure means the equilibrium partial pressure exerted by a petroleum liquid as determined in accordance with methods described in American Petroleum Institute (API) Bulletin 2517, Evaporation Loss from External Floating Roof Tanks, 1980. The API procedure may not be applicable to some high viscosity or high pour crudes. Available estimates of true vapor pressure may be used in special cases such as these.

  • Opium poppy means the plant of the species Papaver somniferum L., except its seeds.

  • Sound level meter means an instrument which includes a microphone, amplifier, RMS detector, integrator or time averager, output meter, and weighting networks used to measure sound pressure levels.

  • Generator Planned Outage means the scheduled removal from service, in whole or in part, of a generating unit for inspection, maintenance or repair with the approval of the Office of the Interconnection in accordance with the PJM Manuals.

  • High voltage bus means the electrical circuit, including the coupling system for charging the REESS, that operates on a high voltage.

  • Meet Point A point, designated by the Parties, at which one Party’s responsibility for service begins and the other Party’s responsibility ends.

  • Pressure means relative pressure versus atmospheric pressure, unless otherwise stated.

  • Positive pressure respirator means a respirator in which the pressure inside the respiratory inlet covering exceeds the ambient air pressure outside the respirator.

  • low voltage means the set of nominal voltage levels that are used for the distribution of electricity and whose upper limit is generally accepted to be an a.c. voltage of 1000V ( or a d.c. voltage of 1500 V). [SANS 1019]

  • Supplier of water means any person who owns or operates a public water system.

  • Digital Signal Level 0 (DS-0 means the lowest-level signal in the time division multiplex digital hierarchy, and represents a voice-grade channel operating at either the 56 Kbps or 64 Kbps transmission bit rates. There are twenty-four (24) DS-0 channels in a DS-1.