ASTM D6377-16
Standard Test Method for Determination of Vapor Pressure of Crude Oil: VPCRx&x2009;(Expansion Method)

Standard No.

ASTM D6377-16

Release Date

2016

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D6377-20

Latest

ASTM D6377-20

Scope

5.1 Vapor pressure of crude oil at various V/Ls is an important physical property for shipping and storage.

Note 2: A vapor-liquid ratio of 0.02:1 (X = 0.02) mimics closely the situation of an oil tanker.

5.2 Vapor pressure of crude oil is important to crude oil producers and refiners for general handling and initial refinery treatment.

5.3 The vapor pressure determined by this test method at a vapor-liquid ratio of 4:1 (VPCR₄) of crude oil at 37.88201;°C can be related to the vapor pressure value determined on the same material when tested by Test Method D323 (see Appendix X1).

5.4 Air saturation of crude oil shall not be done to avoid potential vapor loss. However air saturation of the chilled verification fluid is mandatory (see 7.2 and Section 11).

5.5 This test method can also be applied in online applications.

1.1 This test method covers the use of automated vapor pressure instruments to determine the vapor pressure exerted in vacuum of crude oils. This test method is suitable for testing samples that exert a vapor pressure between 258201;kPa and 1808201;kPa at 37.88201;°C at vapor-liquid ratios from 4:1 to 0.02:1 (X = 4 to 0.02).

Note 1: This test method is suitable for the determination of the vapor pressure of crude oils at temperatures from 08201;°C to 1008201;°C and pressures up to 500 kPa, but the precision and bias statements (see Section 14) may not be applicable.

1.2 This test method also allows the determination of vapor pressure for crude oil samples having pour points above 158201;°C provided the proper sample handling, transfer, and analysis procedures are followed.

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific warning statements, see 7.2.1 – 7.3.2.

ASTM D6377-16 Referenced Document

• ASTM D2892 Standard Test Method for Distillation of Crude Petroleum (15-Theoretical Plate Column)
• ASTM D323 Standard Test Method for Vapor Pressure of Petroleum Products (Reid Method)
• ASTM D3700 Standard Practice for Obtaining LPG Samples Using a Floating Piston Cylinder
• ASTM D4057 Standard Practice for Manual Sampling of Petroleum and Petroleum Products
• ASTM D4177 Standard Practice for Automatic Sampling of Petroleum and Petroleum Products
• ASTM D5191 Standard Test Method for Vapor Pressure of Petroleum Products (Mini Method)
• ASTM D6708 Standard Practice for Statistical Assessment and Improvement of Expected Agreement Between Two Test Methods that Purport to Measure the Same Property of a Material

ASTM D6377-16 history

• 2020 ASTM D6377-20 Standard Test Method for Determination of Vapor Pressure of Crude Oil: VPCRx (Expansion Method)
• 2016 ASTM D6377-16 Standard Test Method for Determination of Vapor Pressure of Crude Oil: VPCRx&x2009;(Expansion Method)
• 2015 ASTM D6377-15 Standard Test Method for Determination of Vapor Pressure of Crude Oil: VPCRx&x2009;(Expansion Method)
• 2014 ASTM D6377-14 Standard Test Method for Determination of Vapor Pressure of Crude Oil: VPCRx&8201;&40;Expansion Method&41;
• 2010 ASTM D6377-10 Standard Test Method for Determination of Vapor Pressure of Crude Oil: VPCR_x (Expansion Method)
• 2008 ASTM D6377-08 Standard Test Method for Determination of Vapor Pressure of Crude Oil: VPCR_x (Expansion Method)
• 2003 ASTM D6377-03 Standard Test Method for Determination of Vapor Pressure of Crude Oil: VPCR_x (Expansion Method)
• 1999 ASTM D6377-99 Standard Test Method for Determination of Vapor Pressure of Crude Oil: VPCR_x (Expansion Method)