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ASTM D5191-04a

Historical Revision

Standard Test Method for Vapor Pressure of Petroleum Products and Liquid Fuels (Mini Method)

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1.1 This test method covers the use of automated vapor pressure instruments to determine the total vapor pressure exerted in vacuum by air-containing, volatile, liquid petroleum products. This test method is suitable for testing samples with boiling points above 0°C (32°F) that exert a vapor pressure between 7 and 130 kPa (1.0 and 18.6 psi) at 37.8°C (100°F) at a vapor-to-liquid ratio of 4:1. Measurements are made on liquid sample sizes in the range from 1 to 10 mL. No account is made for dissolved water in the sample.

Note 1—Samples can also be tested at other vapor-to-liquid ratios, temperatures, and pressures, but the precision and bias statements need not apply.

1.1.1 Some gasoline-oxygenate blends may show a haze when cooled to 0 to 1°C. If a haze is observed in 8.5, it shall be indicated in the reporting of results. The precision and bias statements for hazy samples have not been determined (see Note 10).

1.2 This test method is suitable for calculation of the dry vapor pressure equivalent (DVPE) of gasoline and gasoline-oxygenate blends by means of a correlation equation (see 13.2). The calculated DVPE very closely approximates the dry vapor pressure that would be obtained on the same material when tested by Test Method D 4953.

1.3 The values stated in SI units are regarded as standard. The inch-pound units given in parentheses are provided for information only.

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 through 7.7.


SDO ASTM: ASTM International
Document Number D5191
Publication Date Oct. 4, 2004
Language en - English
Page Count 6
Revision Level 04a
Supercedes
Committee D02.08
Publish Date Document Id Type View
July 1, 2022 D5191-22 Revision
May 1, 2020 D5191-20 Revision
Jan. 1, 2019 D5191-19 Revision
Dec. 1, 2018 D5191-18A Revision
June 1, 2018 D5191-18 Revision
Oct. 1, 2015 D5191-15 Revision
Dec. 1, 2013 D5191-13 Revision
Sept. 1, 2012 D5191-12 Revision
Oct. 1, 2010 D5191-10B Revision
July 1, 2010 D5191-10A Revision
May 1, 2010 D5191-10 Revision
May 1, 2007 D5191-07 Revision
May 1, 2006 D5191-06E01 Revision
May 1, 2006 D5191-06 Revision
Oct. 4, 2004 D5191-04A Revision
Nov. 1, 2003 D5191-03 Revision
Aug. 10, 2002 D5191-02 Revision
May 10, 2001 D5191-99 Revision
May 10, 2001 D5191-01 Revision