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About This Item
Full Description
1.1 This test method covers procedures for the determination of vapor pressure (see Note 0) of gasoline, volatile crude oil, and other volatile petroleum products.
1.2 Procedure A is applicable to gasoline and other petroleum products with a vapor pressure of less than 180 kPa (26 psi).
1.3 Procedure B may also be applicable to these other materials, but only gasoline was included in the interlaboratory test program to determine the precision of this test method.
1.4 Procedure C is for materials with a vapor pressure of greater than 180 kPa (26 psi).
1.5 Procedure D for aviation gasoline with a vapor pressure of approximately 50 kPa (7 psi).
Note 0Because the external atmospheric pressure is counteracted by the atmospheric pressure initially present in the vapor chamber, the Reid vapor pressure is an absolute pressure at 37.8°C (100°F) in kilopascals (pounds-force per square inch). The Reid vapor pressure differs from the true vapor pressure of the sample due to some small sample vaporization and the presence of water vapor and air in the confined space.
1.6 This test method is not applicable to liquefied petroleum gases or fuels containing oxygenated compounds other than methyl t-butyl ether (MTBE). For determination of the vapor pressure of liquefied petroleum gases, refer to Test Method D 1267 or Test Method D 6897. For determination of the vapor pressure of gasoline-oxygenate blends, refer to Test Method D 4953. The precision for crude oil has not been determined since the early 1950s (see Note 0). Test Method D 6377 has been approved as a method for determination of vapor pressure of crude oil. IP 481 is a test method for determination of the air-saturated vapor pressure of crude oil.
1.7 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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.
Document History
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ASTM D323-20a
Standard Test Method for Vapor Pressure of Petroleum Products (Reid Method)- Most Recent
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ASTM D323-20
Standard Test Method for Vapor Pressure of Petroleum Products (Reid Method)- Historical Version
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ASTM D323-15a
Standard Test Method for Vapor Pressure of Petroleum Products (Reid Method)- Historical Version
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ASTM D323-15
Standard Test Method for Vapor Pressure of Petroleum Products (Reid Method)- Historical Version
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ASTM D323-08(2014)
Standard Test Method for Vapor Pressure of Petroleum Products (Reid Method)- Historical Version
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ASTM D323-08
Standard Test Method for Vapor Pressure of Petroleum Products (Reid Method)- Historical Version
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ASTM D323-06
viewing
Standard Test Method for Vapor Pressure of Petroleum Products (Reid Method)- Historical Version
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ASTM D323-99a
Standard Test Method for Vapor Pressure of Petroleum Products (Reid Method)- Historical Version
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ASTM D323-94
Standard Test Method for Vapor Pressure of Petroleum Products (Reid Method)- Historical Version
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ASTM D323-90
Standard Test Method for Vapor Pressure of Petroleum Products (Reid Method)- Historical Version
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ASTM D323-82e2
Standard Test Method for Vapor Pressure of Petroleum Products (Reid Method)- Historical Version
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ASTM D323-82e1
Standard Test Method for Vapor Pressure of Petroleum Products (Reid Method)- Historical Version
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ASTM D323-58(1968)
Standard Method Of Test For Vapor Pressure Of Petroleum Products (Reid Method)- Historical Version