Standard Test Method for Determination of Vapor Pressure (VPX) of Petroleum Products, Hydrocarbons, and Hydrocarbon-Oxygenate Mixtures (Triple Expansion Method)

Importancia y uso:

5.1 Vapor pressure is a very important physical property of volatile liquids for shipping and storage.

5.2 The vapor pressure of gasoline and gasoline-oxygenate blends is regulated by various government agencies.

5.3 Specifications for volatile petroleum products generally include vapor pressure limits to ensure products of suitable volatility performance.

5.4 In this test method, an air saturation procedure prior to the measurement is not required, thus eliminating losses of high volatile compounds during this step. This test method is faster and minimizes potential errors from improper air saturation. This test method permits VP_X determinations in the field.

5.5 This test method can be applied in online applications in which an air saturation procedure prior to the measurement cannot be performed.

Subcomité:

D02.08

Referida por:

D4057-22, D8009-22, D4814-24A, D8011-19, D8076-24, D4054-24, D8009-22, D8275-22, D4057-22, D5191-22, D7223-21, D8009-22, D4814-24A, D5191-22, D4057-22, D5191-22, D5191-22, D4814-24A, D4057-22

Volúmen:

05.02

Número ICS:

75.080 (Petroleum products in general)

Palabras clave:

aviation turbine fuel; dry vapor pressure; gasoline; gasoline and gasoline-oxygenate blends; hydrocarbon-oxygenate blends; mini method; petroleum products; vapor pressure; variable volume method;