ASTM D7900-18
(Test Method)Standard Test Method for Determination of Light Hydrocarbons in Stabilized Crude Oils by Gas Chromatography
Standard Test Method for Determination of Light Hydrocarbons in Stabilized Crude Oils by Gas Chromatography
SIGNIFICANCE AND USE
5.1 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 IP 545 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 due to the interference imposed by the diluent solvent. This test 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).
SCOPE
1.1 This test method 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 test method can be combined with those from Test Method D7169 and IP 545 to give a full boiling point distribution of a crude oil.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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Designation: D7900 − 18
Designation: 601
Standard Test Method for
Determination of Light Hydrocarbons in Stabilized Crude
1,2
Oils by Gas Chromatography
This standard is issued under the fixed designation D7900; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* D4057 Practice for Manual Sampling of Petroleum and
Petroleum Products
1.1 This test method specifies a method to determine the
D4177 Practice for Automatic Sampling of Petroleum and
boiling range distribution of hydrocarbons in stabilized crude
Petroleum Products
oil up to and including n-nonane. A stabilized crude oil is
D5134 Test Method for Detailed Analysis of Petroleum
defined as having a Reid Vapor Pressure equivalent to or less
Naphthas through n-Nonane by Capillary Gas Chroma-
than 82.7 kPa. The results of this test method can be combined
tography
with those from Test Method D7169 and IP 545 to give a full
D6729 Test Method for Determination of Individual Com-
boiling point distribution of a crude oil.
ponents in Spark Ignition Engine Fuels by 100 Metre
1.2 The values stated in SI units are to be regarded as the
Capillary High Resolution Gas Chromatography
standard. The values given in parentheses are provided for
D6730 Test Method for Determination of Individual Com-
information purposes only.
ponents in Spark Ignition Engine Fuels by 100–Metre
1.3 This standard does not purport to address all of the
Capillary (with Precolumn) High-Resolution Gas Chro-
safety concerns, if any, associated with its use. It is the matography
responsibility of the user of this standard to establish appro-
D6733 Test Method for Determination of Individual Com-
priate safety, health, and environmental practices and deter- ponents in Spark Ignition Engine Fuels by 50-Metre
mine the applicability of regulatory limitations prior to use.
Capillary High Resolution Gas Chromatography
1.4 This international standard was developed in accor- D7169 Test Method for Boiling Point Distribution of
dance with internationally recognized principles on standard-
Samples with Residues Such as Crude Oils and Atmo-
ization established in the Decision on Principles for the
spheric and Vacuum Residues by High Temperature Gas
Development of International Standards, Guides and Recom- Chromatography
mendations issued by the World Trade Organization Technical
E355 Practice for Gas ChromatographyTerms and Relation-
Barriers to Trade (TBT) Committee. ships
4
2.2 Energy Institute Standards:
2. Referenced Documents
IP 545 Crude Petroleum and Petroleum Products—
3
Determination of Boiling Range Distribution of Crude Oil
2.1 ASTM Standards:
IP 475 Manual Sampling
D323 TestMethodforVaporPressureofPetroleumProducts
IP 476 Automatic Pipeline Sampling
(Reid Method)
5
2.3 ISO Standard:
ISO 4259 Petroleum Products—Determination andApplica-
1
This test method is under the jurisdiction of ASTM Committee D02 on
tion of Precision Data in Relation to Methods of Test
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
Subcommittee D02.04.0L on Gas Chromatography Methods.
3. Terminology
Current edition approved Oct. 1, 2018. Published October 2018. Originally
approved in 2013. Last previous edition approved in 2017 as D7900 – 17. DOI:
3.1 Definitions—This test method makes reference to many
10.1520/D7900-18.
common gas chromatographic procedures, terms, and relation-
2
This standard has been developed through the cooperative effort between
ships. Detailed definitions can be found in Practice E355.
ASTM and the Energy Institute, London. The IP and ASTM logos imply that the
ASTM and IPstandards are technically equivalent, but their use does not imply that
both standards are editorially identical.
3 4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Information on Energy Institute Standards can be obtained from the Energy
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Institute at www.energyinst.org.
5
Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D7900 − 18
TABLE 1 Typical Chromatographic Conditions
Pre-column Pre-column Analytical Accelerated
A B Analytical
Column Length—metres 1.0 m 0.075 m 50 or 100
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D7900 − 17 D7900 − 18
Designation: 601
Standard Test Method for
Determination of Light Hydrocarbons in Stabilized Crude
1,2
Oils by Gas Chromatography
This standard is issued under the fixed designation D7900; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1 This test method 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 test method can be combined with those from Test Method D7169 and IP 545 to give a full boiling point
distribution of a crude oil. See Test Method D7169 (IP 545) for merging of these results to give a full crude analysis.
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, health, and environmental practices and determine the applicability of
regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
3
2.1 ASTM Standards:
D323 Test Method for Vapor Pressure of Petroleum Products (Reid Method)
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
D4177 Practice for Automatic Sampling of Petroleum and Petroleum Products
D5134 Test Method for Detailed Analysis of Petroleum Naphthas through n-Nonane by Capillary Gas Chromatography
D6729 Test Method for Determination of Individual Components in Spark Ignition Engine Fuels by 100 Metre Capillary High
Resolution Gas Chromatography
D6730 Test Method for Determination of Individual Components in Spark Ignition Engine Fuels by 100–Metre Capillary (with
Precolumn) High-Resolution Gas Chromatography
D6733 Test Method for Determination of Individual Components in Spark Ignition Engine Fuels by 50-Metre Capillary High
Resolution Gas Chromatography
D7169 Test Method for Boiling Point Distribution of Samples with Residues Such as Crude Oils and Atmospheric and Vacuum
Residues by High Temperature Gas Chromatography
E355 Practice for Gas Chromatography Terms and Relationships
4
2.2 Energy Institute Standards:
IP 545 Crude Petroleum and Petroleum Products—Determination of Boiling Range Distribution of Crude Oil
IP 475 Manual Sampling
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcommittee
D02.04.0L on Gas Chromatography Methods.
Current edition approved Oct. 1, 2017Oct. 1, 2018. Published October 2017October 2018. Originally approved in 2013. Last previous edition approved in 20132017 as
ɛ1
D7900 – 13D7900 – 17. . DOI: 10.1520/D7900-17.10.1520/D7900-18.
2
This standard has been developed through the cooperative effort between ASTM and the Energy Institute, London. The IP and ASTM logos imply that the ASTM and
IP standards are technically equivalent, but their use does not imply that both standards are editorially identical.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
4
Information on Energy Institute Standards can be obtained from the Energy Institute at www.energyinst.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D7900 − 18
TABLE 1 Typical Chromatographic Conditions
Pre-column Pre-column Analytical Accelerated
A B Analytical
Column Length—metres 1.0 m 0.075 m 50 or 100 m 40 m
Column Internal Diameter—mm 2 mm 2.5 mm 0.25 mm 0
...
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