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ASTM D611-01a

(Test Method)

Standard Test Methods for Aniline Point and Mixed Aniline Point of Petroleum Products and Hydrocarbon Solvents

Standard Test Methods for Aniline Point and Mixed Aniline Point of Petroleum Products and Hydrocarbon Solvents

SCOPE
1.1 These test methods cover the determination of the aniline point of petroleum products and hydrocarbon solvents. Method A is suitable for transparent samples with an initial boiling point above room temperature and where the aniline point is below the bubble point and above the solidification point of the aniline-sample mixture. Method B, a thin-film method, is suitable for samples too dark for testing by Method A. Methods C and D are for samples that may vaporize appreciably at the aniline point. Method D is particularly suitable where only small quantities of sample are available. Method E describes a procedure using an automatic apparatus suitable for the range covered by Methods A and B.  
1.2 These test methods also cover the determination of the mixed aniline point of petroleum products and hydrocarbon solvents having aniline points below the temperature at which aniline will crystallize from the aniline-sample mixture.  
1.3 This standard does not purport to address all of the safety problems, 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 precautionary statements are given in Sections 7.

General Information

Status
Historical
Publication Date
09-Dec-2001
ICS
71.080.01 - Organic chemicals in general
87.060.30 - Solvents
Technical Committee
D02 - Petroleum Products, Liquid Fuels, and Lubricants
Drafting Committee
D02.04.0D - Physical and Chemical Methods
Current Stage
Ref Project

Relations

Replaces
ASTM D611-01 - Standard Test Methods for Aniline Point and Mixed Aniline Point of Petroleum Products and Hydrocarbon Solvents
Effective Date
10-Dec-2001
Replaced By
ASTM D611-01b - Standard Test Methods for Aniline Point and Mixed Aniline Point of Petroleum Products and Hydrocarbon Solvents
Effective Date
10-Dec-2001
Referred By
ASTM D3487-16e1 - Standard Specification for Mineral Insulating Oil Used in Electrical Apparatus
Effective Date
10-Dec-2001
Referred By
ASTM D8180-23 - Standard Specification for Rerefined Mineral Insulating Liquid Used in Electrical Apparatus
Effective Date
10-Dec-2001
Referred By
ASTM D4529-17 - Standard Test Method for Estimation of Net Heat of Combustion of Aviation Fuels
Effective Date
10-Dec-2001
Referred By
ASTM D1094-07(2019) - Standard Test Method for Water Reaction of Aviation Fuels
Effective Date
10-Dec-2001
Referred By
ASTM D117-22 - Standard Guide for Sampling, Test Methods, and Specifications for Electrical Insulating Liquids
Effective Date
10-Dec-2001
Referred By
ASTM D3734-05(2018) - Standard Specification for High-Flash Aromatic Naphthas
Effective Date
10-Dec-2001
Referred By
ASTM D2864-21a - Standard Terminology Relating to Electrical Insulating Liquids and Gases
Effective Date
10-Dec-2001
Referred By
ASTM D1836-07(2021) - Standard Specification for Commercial Hexanes
Effective Date
10-Dec-2001
Referred By
ASTM D7155-20 - Standard Practice for Evaluating Compatibility of Mixtures of Turbine Lubricating Oils
Effective Date
10-Dec-2001
Referred By
ASTM D268-22 - Standard Guide for Sampling and Testing Volatile Solvents and Chemical Intermediates for Use in Paint and Related Coatings and Material
Effective Date
10-Dec-2001

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ASTM D611-01a - Standard Test Methods for Aniline Point and Mixed Aniline Point of Petroleum Products and Hydrocarbon SolventsASTM D611-01a - Standard Test Methods for Aniline Point and Mixed Aniline Point of Petroleum Products and Hydrocarbon Solvents
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ASTM D611-01a - Standard Test Methods for Aniline Point and Mixed Aniline Point of Petroleum Products and Hydrocarbon Solvents
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
An American National Standard
Designation: D 611 – 01a
Designation: 2/98
Standard Test Methods for
Aniline Point and Mixed Aniline Point of Petroleum Products
1
and Hydrocarbon Solvents
This standard is issued under the fixed designation D 611; 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.
These test methods were adopted as a joint ASTM-IP standard in 1964.
This standard has been approved for use by agencies of the Department of Defense.
2
1. Scope Dispersion of Hydrocarbon Liquids
D 1500 Test Method for ASTM Color of Petroleum Prod-
1.1 These test methods cover the determination of the
2
ucts (ASTM Color Scale)
aniline point of petroleum products and hydrocarbon solvents.
D 2700 Test Method for Motor Octane Number of Spark-
Method A is suitable for transparent samples with an initial
3
Ignition Engine Fuel
boiling point above room temperature and where the aniline
4
E 1 Specification for ASTM Thermometers
point is below the bubble point and above the solidification
point of the aniline-sample mixture. Method B, a thin-film
3. Terminology
method, is suitable for samples too dark for testing by Method
3.1 Definitions:
A. Methods C and D are for samples that may vaporize
3.1.1 aniline point—the minimum equilibrium solution
appreciably at the aniline point. Method D is particularly
temperature for equal volumes of aniline and sample.
suitable where only small quantities of sample are available.
3.1.2 mixed aniline point—the minimum equilibrium solu-
Method E describes a procedure using an automatic apparatus
tion temperature of a mixture of two volumes of aniline, one
suitable for the range covered by Methods A and B.
volume of sample, and one volume of n-heptane of specified
1.2 These test methods also cover the determination of the
purity.
mixed aniline point of petroleum products and hydrocarbon
solvents having aniline points below the temperature at which
4. Summary of Test Methods
aniline will crystallize from the aniline-sample mixture.
4.1 Specified volumes of aniline and sample, or aniline and
1.3 This standard does not purport to address all of the
sample plus n-heptane, are placed in a tube and mixed
safety concerns, if any, associated with its use. It is the
mechanically. The mixture is heated at a controlled rate until
responsibility of the user of this standard to establish appro-
the two phases become miscible. The mixture is then cooled at
priate safety and health practices and determine the applica-
a controlled rate and the temperature at which two phases
bility of regulatory limitations prior to use. Specific precau-
separate is recorded as the aniline point or mixed aniline point.
tionary statements are given in Section 7.
5. Significance and Use
2. Referenced Documents
5.1 The aniline point (or mixed aniline point) is useful as an
2.1 ASTM Standards:
aid in the characterization of pure hydrocarbons and in the
D 1015 Test Method for Freezing Points of High-Purity
2 analysis of hydrocarbon mixtures. Aromatic hydrocarbons
Hydrocarbons
exhibit the lowest, and paraffins the highest values. Cyclopar-
D 1217 Test Method for Density and Relative Density
2 affins and olefins exhibit values that lie between those for
(Specific Gravity) of Liquids by Bingham Pycnometer
paraffins and aromatics. In homologous series the aniline
D 1218 Test Method for Refractive Index and Refractive
points increase with increasing molecular weight. Although it
occasionally is used in combination with other physical prop-
1 erties in correlative methods for hydrocarbon analysis, the
These test methods are under the jurisdiction of ASTM Committee D02 on
aniline point is most often used to provide an estimate of the
Petroleum Products and Lubricantsand are the direct responsibility of D02.04 on
Hydrocarbon Analysis.
Current edition approved Nov. 10, 2001. Published January 2002. Originally
3
published as D 611 – 41 T. Last previous edition D 611 – 01. Annual Book of ASTM Standards, Vol 05.05.
2 4
Annual Book of ASTM Standards, Vol 05.01. Annual Book of ASTM Standards, Vol 14.03.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D611
NOTE 4—The aniline point of aniline and n-heptane determined with
aromatic hydrocarbon content of mixtures.
automatic apparatus (Method E) shall be 69.3 6 0.2°C (156.7°F 6 0.4°F)
when corrected in accordance with the equation in Section A5.2.1
6. Apparatus
NOTE 5—As an alternative to distilling the aniline on the day of use, the
6.1 For details of the aniline point
...

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Standard Test Methods for Aniline Point and Mixed Aniline Point of Petroleum Products and Hydrocarbon Solvents

SIGNIFICANCE AND USE
5.1 The aniline point (or mixed aniline point) is useful as an aid in the characterization of pure hydrocarbons and in the analysis of hydrocarbon mixtures. Aromatic hydrocarbons exhibit the lowest, and paraffins the highest values. Cycloparaffins and olefins exhibit values that lie between those for paraffins and aromatics. In homologous series the aniline points increase with increasing molecular weight. Although it occasionally is used in combination with other physical properties in correlative methods for hydrocarbon analysis, the aniline point is most often used to provide an estimate of the aromatic hydrocarbon content of mixtures.
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1.2 These test methods also cover the determination of the mixed aniline point of petroleum products and hydrocarbon solvents having aniline points below the temperature at which aniline will crystallize from the aniline-sample mixture.  
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.4 WARNING—Mercury has been designated by many regulatory agencies as a hazardous substance that can cause serious medical issues. Mercury, or its vapor, has been demonstrated to be hazardous to health and corrosive to materials. Use caution when handling mercury and mercury-containing products. See the applicable product Safety Data Sheet (SDS) for additional information. The potential exists that selling mercury or mercury-containing products, or both, is prohibited by local or national law. Users must determine legality of sales in their location.  
1.5 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. Specific warning statements are given in Section 7.  
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5.1 The aniline point (or mixed aniline point) is useful as an aid in the characterization of pure hydrocarbons and in the analysis of hydrocarbon mixtures. Aromatic hydrocarbons exhibit the lowest, and paraffins the highest values. Cycloparaffins and olefins exhibit values that lie between those for paraffins and aromatics. In homologous series the aniline points increase with increasing molecular weight. Although it occasionally is used in combination with other physical properties in correlative methods for hydrocarbon analysis, the aniline point is most often used to provide an estimate of the aromatic hydrocarbon content of mixtures.
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1.1 These test methods cover the determination of the aniline point of petroleum products and hydrocarbon solvents. Test Method A is suitable for transparent samples with an initial boiling point above room temperature and where the aniline point is below the bubble point and above the solidification point of the aniline-sample mixture. Test Method B, a thin-film method, is suitable for samples too dark for testing by Test Method A. Test Methods C and D are for samples that may vaporize appreciably at the aniline point. Test Method D is particularly suitable where only small quantities of sample are available. Test Method E describes a procedure using an automatic apparatus suitable for the range covered by Test Methods A and B.  
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This specification covers UNS N06002, UNS N06030, UNS N06035, UNS N06022, UNS N06200, UNS N06230, UNS N06600, UNS N06617, UNS N06625, UNS N08020, UNS N08026, UNS N08024, UNS N08120, UNS N08926, UNS N08367, UNS N10242, UNS N10276, UNS N10665, UNS N10675, UNS N12160, UNS R20033, UNS N06059, UNS N06686, UNS N10629, UNS N08031, UNS N06045, UNS N06025, and UNS R30556 nickel alloy billets and bars for reforging. The products shall be hot worked from ingots by rolling, forging, extruding, hammering, or pressing. The material shall conform to the chemical composition requirements prescribed by the reference material. The chemical composition of the material shall be determined by chemical analysis in accordance with test method E1473.
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