Standard Test Method for Vapor Pressure of Petroleum Products (Reid Method)
1.1 This test method covers procedures for the determination of vapor pressure (see Note 1) 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 1—Because 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 3). 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.
1.8 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. Specific warning statements are given in Sections 7 and 18, and 12.5.3, 15.5, 21.2, A1.1.2, A1.1.6, and A2.3.
Please first log in with a verified email before subscribing to alerts.
Your Alert Profile lists the documents that will be monitored. If the document is revised or amended, you will be notified by email. You may delete a document from your Alert Profile at any time. To add a document to your Profile Alert, search for the document and click “alert me”.
Your Alert Profile lists the documents that will be monitored. If the document is revised or amended, you will be notified by email. You may delete a document from your Alert Profile at any time. To add a document to your Profile Alert, search for the document and click “alert me”.
ADD ALERT
Already Subscribed to this document.
Your Alert Profile lists the documents that will be monitored. If the document is revised or amended, you will be notified by email. You may delete a document from your Alert Profile at any time. To add a document to your Profile Alert, search for the document and click “alert me”.
PDF DOCUMENT FORMAT
Documents sold on the ANSI Webstore are in electronic Adobe Acrobat PDF format , however some ISO and IEC standards are available from Amazon in hard copy format.
DRM PROTECTED DOCUMENTS
Some PDF files are protected by Digital Rights Management (DRM) at the request of the copyright holder. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. Some copyright holders may impose other restrictions that limit document printing and copy/paste of documents.
NON PRINTABLE DOCUMENTS
Those documents cannot be printed at the request of the copyright holder.
We have no amendments or corrections for this standard.
Are the documents at the ANSI Webstore in electronic Adobe Acrobat PDF format only?
Documents sold on the ANSI Standards Store are in electronic Adobe Acrobat PDF format.however some ISO and IEC standards are available from Amazon in hard copy format.
STANDARDS SUBSCRIPTIONS
This standard is also available to be included in Standards Subscriptions. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards.
Subscription pricing is determined by: the specific standard(s) or collections of standards, the number of locations accessing the standards, and the number of employees that need access.