ASTM D2007-01

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An American National Standard
Designation: D 2007 – 01
Standard Test Method for
Characteristic Groups in Rubber Extender and Processing
Oils and Other Petroleum–Derived Oils by the Clay–Gel
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Absorption Chromatographic Method
This standard is issued under the fixed designation D 2007; 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 (e) indicates an editorial change since the last revision or reapproval.
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1. Scope D 5309 Specification for Cyclohexane 999
E 691 Practice for Conducting an Interlaboratory Study to
1.1 This test method covers a procedure for classifying oil
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Determine the Precision of a Test Method
samples of initial boiling point of at least 260°C (500°F) into
the hydrocarbon types of polar compounds, aromatics and
3. Terminology
saturates, and recovery of representative fractions of these
3.1 Definitions of Terms Specific to This Standard:
types. This classification is used for specification purposes in
3.1.1 The following terms refer to the hydrocarbon types
rubber extender and processing oils.
and structural groups as measured by this test method:
NOTE 1—See Test Method D 2226.
3.1.1.1 asphaltenes, or n-pentane insolubles—insoluble
matter that precipitates from a solution of oil in n-pentane
1.2 This test method is not directly applicable to oils of
greater than 0.1 mass % pentane insolubles. Such oils can be under the specified conditions.
3.1.1.2 polar compounds—material retained on adsorbent
analyzed after removal of these materials, but precision is
degraded (See Appendix X1). clay after percolation of the sample in n-pentane eluent under
the conditions specified.
1.3 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information 3.1.1.3 polar aromatics—synonym for polar compounds.
3.1.1.4 aromatics—material that, on percolation, passes
only.
1.4 This standard does not purport to address all of the through a column of adsorbent clay in a n-pentane eluent but
adsorbs on silica gel under the conditions specified.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 3.1.1.5 saturates—material that, on percolation in a
n-pentane eluent, is not adsorbed on either the clay or silica gel
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. Specific precaution under the conditions specified.
statements are given in 6.1, Section 7, A1.4.1, and A1.5.5.
4. Summary of Test Method
2. Referenced Documents
4.1 The sample is diluted with solvent and charged to a
glass percolation column containing clay in the upper section
2.1 ASTM Standards:
and silica gel plus clay in the lower section. n-Pentane is then
D 86 Test Method for Distillation of Petroleum Products at
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Atmospheric Pressure charged to the double column until a definite quantity of
effluent has been collected. The upper (clay) section is removed
D 323 Test Method for Vapor Pressure of Petroleum Prod-
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ucts (Reid Method) from the lower section and washed further with n-pentane. A
toluene-acetone mixture 50 to 50 by volume is then charged to
D 1159 Test Method for Bromine Number of Petroleum
Distillates and Commercial Aliphatic Olefins by Electro- the clay section for desorption and a specified volume of
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effluent collected. The lower (gel) column may be desorbed by
metric Titration
D 2226 Classification for Various Types of Petroleum Oils recirculation of toluene.
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4.2 The solvents are completely removed from the recov-
for Rubber Compounding Use
ered n-pentane and the toluene-acetone fractions and the
residues are weighed and calculated as saturate and polar
compounds contents. Aromatics may be calculated by differ-
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This test method is under the jurisdiction of ASTM Committee D02 on
ence, or measured following evaporation of the toluene used
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
for desorption of the gel column.
D02.04 on Hydrocarbon Analysis.
Current edition approved May 10, 2001. Published June 2001. Originally
published as D 2007 – 68T. Last previous edition D 2007 – 98.
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Annual Book of ASTM Standards, Vol 05.01. Annual Book of ASTM Standards, Vol 06.04.
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Annual Book of ASTM Standards, Vol 09.01. Annual Book of ASTM Standards, Vol 14.02.
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D 2007
4.3 When the sample contains more than 0.1 mass % of 6.2 Clay-Gel Column, constructed as illustrated in Fig. 1.
n-pentane insolubles, this test method cannot be
...