Vapor pressure definition

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)."

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Vapor pressure means the pressure of the vapor phase of a substance, or the sum of the partial pressures of the vapor phases of individual substances in a mixture of substances, when in equilibrium with the non-vapor phase of the substance or substances.

Vapor pressure means the dry vapor pressure equivalent as determined using the ASTM Standard D5191 “Standard Test Method for Vapor Pressure of Petroleum Products (Mini Method)”.

Examples of Vapor pressure in a sentence

Vapor pressure values provide indica- tions of the tendency of pure sub- stances to vaporize in an unperturbed situation, and thus provide a method for ranking the relative volatilities of chemicals.
Vapor pressure data com- bined with water solubility data permit the calculation of ▇▇▇▇▇’▇ law con- stant, a parameter essential to the cal- culation of volatility from water.
ThreatAssistTM Chemical Properties Database -proprietary on-board chemical properties database provides instant access to actionable data on ALL library spectra including: Common name, physical appearance and common uses, IDLH and Vapor pressure as well as ghs hazard class pictograms and NFPA diamonds.
Vapor pressure dif- ferentials throughout the thickness and width of the conventionally pressed board were slight and lasted for relatively short periods of time (Figure 17).
Contractor must also provide a copy of the written certifications to the agency representative at the time of order or purchase for ▇▇▇▇ Vapor pressure, fuel content.

More Definitions of Vapor pressure

Vapor pressure means the pressure above the surface of a liquid relative to zero pressure (absolute). Also called true vapor pressure.

Vapor pressure means the pressure exerted by the vapor of a substance when it is under equilibrium conditions.

Vapor pressure means the pressure above the surface of a liquid relative to zero pressure (absolute), also called true vapor pressure, as determined by ASTM D6377, which is the current version of the standard test method for determination of vapor pressure of crude oil: VPCRx (Expansion Method).

Vapor pressure means dry vapor pressure equivalent of gasoline or blendstock as measured according to ASTM D5191.

Vapor pressure means the pressure exerted by the gaseous form of a substance in equilibrium with its liquid or solid form.

Vapor pressure means the total equilibrium partial pressure or pressures for any given chemical or mixture at a given temperature.

Vapor pressure means the vapor pressure at 37.8 degrees Celsius (37.8o C) of volatile Crude Petroleum herein expressed in Kilopascals, as determined by test method ASTM D6377.