Atmospheric pressure definition

Atmospheric pressure means the wet, absolute, atmospheric static pressure. Note that if the atmospheric pressure is measured in a duct, negligible pressure losses shall be ensured between the atmosphere and the measurement location, and changes in the duct's static pressure resulting from the flow shall be accounted for;
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Atmospheric pressure or “atm” means an absolute pressure of one decimal zero one three two five (1.01325) Bar(a);
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Atmospheric pressure means 1013 millibars;
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Examples of Atmospheric pressure in a sentence

  • Atmospheric pressure is assumed to be the levels shown below in kilopascals (absolute) regardless of the actual atmospheric pressure at which the gas is measured and delivered.

  • Atmospheric pressure is the pressure exerted by the weight of the atmosphere above the earth.Pressure may be referred to using an absolute scale, pounds per square inch absolute (psia), or gage scale, pounds per square inch gage (psig).Absolute pressure and gage pressure are related.

  • There are several ways this pressure can be expressed: † Atmospheric pressure (static pressure) is the pressure exerted at the surface of a body by a column of air in the atmosphere.

  • Atmospheric pressure is defined as the force per unit area exerted against a surface by the of the air above that surface.

  • Atmospheric pressure was assumed to be acting on the clay samples during the drying process (since the furnace is not air-tight).

  • Atmospheric pressure MALDI mass spectrometry imaging of tissues and cells at 1.4-μm lateral resolution.

  • Atmospheric pressure shall not be less than 96.6 kPa. If this is not possible because of conditions of altitude, a modified injection pump setting may have to be used, details of which will be included in the report.

  • Atmospheric pressure related to the high level corresponds to that pressure in the Standard Atmosphere.

  • Atmospheric pressure was then restored in the chamber and the sample maintained for 15 minutes for the oxidation to proceed.

  • Atmospheric pressure chemical ionization was conducted in the positive-ion mode with capillary and fragmentor voltages of 3.5 kV and 100 V, respectively.


More Definitions of Atmospheric pressure

Atmospheric pressure means an absolute pressure of one decimal zero one three two five (1.01325) Bar;
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Related to Atmospheric pressure

  • Atmosphere means the air that envelops or surrounds the earth and includes all space outside of buildings, stacks or exterior ducts.

  • Pressure means the total load or force per unit area acting on a surface.

  • Backpressure means a pressure (caused by a pump, elevated tank or piping, boiler, or other means) on the consumer's side of the service connection that is greater than the pressure provided by the public water system and which may cause backflow.

  • 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.

  • Diatomaceous earth filtration means a process resulting in substantial particulate removal in which a precoat cake of diatomaceous earth filter media is deposited on a support membrane (septum), and 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.

  • Pressure vessel means containers for the containment of pressure, either internal or external. This pressure may be obtained from an external source or by the application of heat from a direct or indirect source, or any combination thereof.

  • 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.

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

  • Working pressure means the maximum pressure to which a component is designed to be subjected to and which is the basis for determining the strength of the component under consideration. For CNG cylinder, the settled pressure of 20 MPa at a uniform temperature of 15 C. For LNG tank, the pressure of the LNG tank primary relief valve setting.

  • Low water pressure means water pressure below the regulatory reference level which is the minimum pressure when demand on the system is not abnormal.

  • Sediment means solid material, mineral or organic, that is in suspension, is being transported, or has been moved from its site of origin by air, water or gravity as a product of erosion.

  • Noise means two times the root mean square of ten standard deviations, each calculated from the zero responses measured at a constant frequency which is a multiple of 1,0 Hz during a period of 30 seconds.

  • Cubic foot of gas means the amount of gas required to fill a cubic foot of space when the gas is at an absolute pressure of fourteen and seventy-three hundredths (14.73) pounds per square inch at a temperature of sixty (60) degrees Fahrenheit.

  • Nitrogen oxides means nitric oxide and nitrogen dioxide, expressed as nitrogen dioxide (NO2);

  • CO2 means carbon dioxide.

  • Atmosphere-supplying respirator means a respirator that supplies the respirator user with breathing air from a source independent of the ambient atmosphere, and includes supplied-air respirators (SARs) and self-contained breathing apparatus (SCBA) units.

  • Topsoil means a varying depth (up to 300 mm) of the soil profile irrespective of the fertility, appearance, structure, agricultural potential, fertility and composition of the soil;

  • Odor means that property of an air contaminant that affects the sense of smell.

  • 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;

  • Solids means the nonvolatile portion of the coating that after drying makes up the dry film.

  • High global warming potential hydrofluorocarbons means any hydrofluorocarbons in a particular end use for which EPA’s Significant New Alternatives Policy (SNAP) program has identified other acceptable alternatives that have lower global warming potential. The SNAP list of alternatives is found at 40 CFR part 82, subpart G, with supplemental tables of alternatives available at (http://www.epa.gov/snap/ ).

  • Inclement Weather means any weather condition that delays the scheduled arrival or departure of a Common Carrier.

  • Surface waters means all waters of the state as defined in G.S. 143-212 except underground waters

  • Dust means any solid matter in a fine or disintegrated form which is capable of being dispersed or suspended in the atmosphere;

  • Vegetation means trees, shrubs, nursery stock and other vegetation and includes the limbs or growth of any Vegetation.

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