1.1 This specification specifies a method to determine the boiling range distribution of hydrocarbons in stabilized crude oil up to and including n-nonane. A stabilized crude oil is defined as having a Reid vapor pressure equivalent to or less than 82.7 kPa. The results of this method can be combined with those from Test Method D7169 and IP 545 to give a full boiling point distribution of a crude oil. It does not discuss any specific algorithms for this recombination, which will be determined in a separate standard. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are provided for information purposes only. 1.3 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.
Knowledge of the boiling point distribution of stabilized crude oils is important for the marketing, scheduling, and processing of crude oil in the petroleum industry. Test Method D7169 and IP545 purport to give such a distribution in crude oils, but are susceptible to significant errors in the light ends portion of the distribution as well as in the mass recovery of the whole crude oil because of the interference imposed by the diluent solvent. This method allows for more accurate determination of the front end of the boiling point distribution curve, in addition to providing important C1 to C9 (nonane) component level information and more accurate mass recovery at C9 (nonane).
Keywordsboiling range distribution; distillation; gas chromatography; petroleum; crude oil; simulated distillation
The title and scope are in draft form and are under development within this ASTM Committee.Back to Top
Frank Di Sanzo
Ballot Item Approved as D7900-2013 and Pending Publication