Positive pressure definition

Positive pressure means a room or device with higher pressure than adjacent space so that air flow moves out of, rather than into, the room or device.
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Positive pressure means a condition that exists when more air is supplied to a space than is exhausted, so the air pressure within that space is greater than that in surrounding areas.
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Examples of Positive pressure in a sentence

  • Positive pressure ventilation device (e.g., Ambu) plus oxygen supply.

  • Positive pressure test will not suffice for procedure outlined below.

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

  • Positive pressure ventilation device (e.g. Ambu) plus oxygen supply.

  • Positive pressure, full face-piece self- contained breathing apparatus (SCBA), or positive pressure supplied air respirator with escape SCBA, approved by the National In- stitute for Occupational Safety and Health (NIOSH).

  • Positive pressure, full-facepiece self-con- tained breathing apparatus (SCBA), or posi- tive pressure supplied air respirator with es- cape SCBA (NIOSH approved).

  • Special protective equipment Positive pressure self-contained breathing apparatus (SCBA) and structural firefighters’ for fire-fighters: protective clothing will provide adequate protection.

  • Positive pressure, full-facepiece self-contained breathing apparatus (SCBA), or positive pressure supplied air respirator with escape SCBA (NIOSH approved).

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

  • In case of fire: Positive pressure self-contained breathing apparatus (SCBA).Emergency procedures : Provide adequate ventilation.

Related to Positive pressure

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

  • 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.

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

  • 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.

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

  • Slash means all debris created on the Work area by the precommercial thinning operation.

  • Working pressure means the settled pressure of a compressed gas at a reference temperature of 15 °C in a full pressure receptacle;

  • 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.

  • Fugitive dust means a particulate emission made airborne by forces of wind, man's activity, or both. Unpaved roads, construction sites, and tilled land are examples of areas that originate fugitive dust. Fugitive dust is a type of fugitive emission.

  • medium voltage means the set of nominal voltage levels that lie above low voltage and below high voltage in the range of 1 kV to 44 kV;

  • Fugitive emission means those emissions that could not reasonably pass through a stack, chimney, vent, or other functionally-equivalent opening.

  • Electrostatic spray means a method of applying a spray coating in which opposite electric charges are applied to the substrate and the coating. The coating is attracted to the substrate by the electrostatic potential between them.

  • Fugitive dust emissions means particulate matter from process operations that does not pass through a process stack or vent and that is generated within plant property boundaries from activities such as: unloading and loading areas, process areas, stockpiles, stock pile working, plant parking lots, and plant roads (including access roads and haul roads).

  • Process weight means the total weight of all materials introduced into any source operation. Solid fuels charged will be considered as part of the process weight, but liquid and gaseous fuels and combustion air will not.

  • 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.

  • Fugitive emissions means those emissions which could not reasonably pass through a stack, chimney, vent, or other functionally equivalent opening.

  • 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/ ).

  • Ballast means a device used with an electric discharge lamp to obtain necessary circuit conditions, such as voltage, current, and waveform, for starting and operating the lamp.

  • voltage means the root-mean-square value of electrical potential between two conductors.

  • Heat input means the product (expressed in mmBtu/time) of the gross calorific value of the fuel (expressed in Btu/lb) and the fuel feed rate into the combustion device (expressed in mass of fuel/time) and does not include the heat derived from preheated combustion air, recirculated flue gases, or ex- haust from other sources.

  • Design pressure means the hydrostatic pressure for which each structure or appliance assumed watertight in the intact and damage stability calculations is designed to withstand.

  • Scale means the height, width and length of each building proposed within the development in relation to its surroundings;

  • Proof gallon means a U.S. gallon of liquor at 60 degrees on the Fahrenheit scale that

  • Container means any portable device in which a material is stored, transported, treated, disposed of, or otherwise handled.

  • 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.

  • high voltage means the classification of an electric component or circuit, if its working voltage is > 60 V and ≤ 1500 V DC or > 30 V and ≤ 1000 V AC root mean square (rms).