RMS sound pressure definition

RMS sound pressure means the square root of the time averaged square of the sound pressure, denoted Prms.
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RMS sound pressure means the square root of the timed averages square of the sound pressure.
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Examples of RMS sound pressure in a sentence

  • During this period, as specified in Table 2, no surveys with RMS sound pressure levels > 180 dB re 1 uPa at 1 meter for equipment that operates between 7 Hz and 35 kHz shall occur.

  • SPL) means 20 times the logarithm to the base 10 of the ratio of the RMS sound pressure to the reference pressure of 20 micropascals (20x10µN/m).

  • Twenty (20) times the logarithms to the base 10 of the ratio of the root mean squared (RMS) sound pressure to the reference pressure of twenty (20) micronewtons per square meter.

  • The NMFS currently uses the root-mean-square (RMS) sound pressure level (SPL) metric to evaluate potential impacts on marine mammals and federally listed species of fish.

  • Lmax is the highest RMS (root mean squared) sound pressure level within the measurement period, and Lmin is the lowest RMS sound pressure level within the measurement period.The time period in which noise occurs is also important since nighttime noise tends to disturb people more than daytime noise.

  • SPL = 10 Log10(P/P0)2 ……… (i) whereSPL : Sound Pressure Level in dBP : RMS sound pressure in pascals P0 : Sound reference pressure at20 µPa Leq is that statistical value of sound pressure level that can be equated to any fluctuating noise level.

  • Energy management services include: preparation of municipal energy consumption analyses, goal setting, monitoring and reporting; preparation of grant program identification and proposal writing; conducting on-site public information sessions; consultation on community, municipal, landfill and brownfield solar The Town requests a waiver, on its behalf and on behalf of its competitive supplier, from the information disclosure requirements contained at 220 C.M.R. § 11.06.

  • Twenty times the logarithm to the base 10 of the ratio of the RMS sound pressure to the reference pressure, which shall be 20 micropascals, denoted LP or SPL.

  • At this range from the drilling operation the one second RMS sound pressure varied from 2.3 to 4.2 Pa (127 to 133 dB re.

  • Marine Mammal Hearing Groups, Hearing Range, and Level B Disturbance Thresholds* *All thresholds reported as the root mean square (RMS) sound pressure level (SPLRMS) and decibels are referenced to 1 micro Pascal (1µPa); Reference: NOAA West Coast Fisheries (online guidance, accessed 03 January 2019) https://www.westcoast.fisheries.noaa.gov/protected_species/marine_mammals/threshold_guidance.html Table 6.

Related to RMS sound pressure

  • 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.

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

  • Biodiesel means a fuel composed of mono-alkyl esters of long chain fatty acids derived from vegetable oils or animal fats, and, in accordance with standards specified by the American society for testing and materials, designated B100, and meeting the requirements of D-6751, as approved by the department.

  • 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.

  • Attachment point means a point on the network at which network assets are connected to assets owned by another person.

  • Vapor pressure as herein used means Vapor Pressure at 100° Fahrenheit as determined by ASTM Method D-323-90, "Standard Method of Test for Vapor Pressure of Petroleum Products (Reid Method)."

  • Sorbent means a material that is used to soak up free liquids by either adsorption or absorption, or both. “Sorb” means to either adsorb or absorb, or both.

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

  • Delivery Point means the point(s) of connection(s) at which energy is delivered into the Grid System i.e. the Interconnection Point.

  • PNode has the meaning set forth in the CAISO Tariff.

  • Diatomaceous earth filtration means a process resulting in substantial particulate removal in which (1) a precoat cake of diatomaceous earth filter media is deposited on a support membrane (septum), and (2) while the water is filtered by passing through the cake on the septum, additional filter media known as body feed is continuously added to the feed water to maintain the permeability of the filter cake.

  • Biomass means the biodegradable fraction of products, waste and residues from biological origin from agriculture (including vegetal and animal substances), forestry and related industries including fisheries and aquaculture, as well as the biodegradable fraction of industrial and municipal waste;

  • Delivery Points means: (i) for natural gas transported by interstate pipelines, the city gate stations of your Utility, and (ii) for electricity, one or more points at which Company, as your agent, has arranged for the delivery of electricity to a third party (such as your Utility) for your account or at your premises.

  • Injection tool means a device used for controlled subsurface injection of radioactive tracer material.

  • Biodiesel blend means a fuel comprised of a blend of biodiesel fuel with petroleum-based diesel fuel, suitable for use as a fuel in a compression-ignition internal combustion diesel engine.

  • Oxides of nitrogen means the sum of the volume mixing ratio (ppbv) of nitrogen monoxide (nitric oxide) and nitrogen dioxide expressed in units of mass concentration of nitrogen dioxide (μg/m3);

  • Feedstock means a solid waste that will readily decompose during the composting process including but not limited to yard waste, agricultural waste, animal waste, food scraps, animal carcasses, raw rendering material, and mixed solid waste.

  • Gasification means the substoichiometric oxidation or steam reformation of a substance to produce a gaseous mixture containing two or more of the following: (i) oxides of carbon; (ii) methane; and (iii) hydrogen;

  • Grab sample means an individual sample collected in less than 15 minutes in conjunction with an instantaneous flow measurement.

  • Ethanol means a high octane gasoline blend stock that is used to make various grades of gasoline.

  • High-temperature coating means a high performance coating labeled and formulated for application to substrates exposed continuously or intermittently to temperatures above 204oC (400oF).

  • licensed water supplier means a company which is the holder for the time being of a water supply licence under Section 17A(1) of the 1991 Act(f);

  • Feedstock Gas means natural gas used as a raw material for its chemical properties in creating an end product.

  • Working pressure means pressure, in a working chamber, to which building worker is exposed;