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ASTM D 3339 : 2012 : R2017

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Test Method for Acid Number of Petroleum Products by Semi-Micro Color Indicator Titration
Available format(s)

Hardcopy , PDF

Superseded date

04-01-2022

Language(s)

English

Published date

29-06-2017

CONTAINED IN VOL. 05.02, 2017 Defines the determination of acidic constituents in new or used petroleum products and lubricants soluble or nearly soluble in mixtures of toluene, and isopropyl alcohol.

1.1This test method covers the determination of acidic constituents in new or used petroleum products and lubricants soluble or nearly soluble in mixtures of toluene, and isopropyl alcohol. The test method is especially intended for cases in which the amount of sample available to be analyzed is too small to allow accurate analysis by Test Methods D974 or D664. It is applicable for the determination of acids having dissociation constants in water larger than 10−9. Extremely weak acids having dissociation constants smaller than 10−9 do not interfere. Salts titrate if their hydrolysis constants are larger than 10−9.

1.2This test method can be used to indicate relative changes in acid number that occur in an oil during use under oxidizing conditions. Although the titration is made under definite equilibrium conditions, the method does not measure an absolute acidic property that can be used to predict performance of an oil under service conditions. No general relationship between bearing corrosion and acid number is known.

1.3Since this test method requires substantially less sample than Test Methods D974 or D664, it provides an advantageous means of monitoring an oxidation test by changes in acid number by (1) minimizing test sample depletion for acid number analyses and thus minimizing the disturbance of the test or (2) allowing additional acid number analyses to be made while maintaining the same test sample depletion and thus providing additional data.

Note 1:Some oils, such as many cutting oils, rust-proofing oils, and similar compounded oils, or excessively dark-colored oils, may be more difficult to analyze by this test method due to obscurity of the color-indicator end point. These oils can be analyzed by Test Method D664 provided sufficient sample is available. However, this situation is much less likely using Test Method D3339 than using Test Method D974 due to the use of a more highly dilute sample during the titration and due to the greater stability of the end point color change. The acid numbers obtained by Test Method D3339 may or may not be numerically the same as those obtained by Test Method D664 but they should be of the same order of magnitude.

Note 2:The results obtained using this method have been found to be numerically the same as those obtained using Test Method D974, within the precision of the two methods, for new or oxidized lubricants of the type primarily intended for hydraulic or steam turbine type service. The oxidized lubricants were obtained using the Test Method D943 oxidation test. This correlation is shown by the correlation coefficient r = 0.989 with slope s = + 1.017 and intercept y = + 0.029, calculated using the acid numbers obtained using both titration methods for the samples used for the precision statement (12.2).2

1.4The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5This 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. For specific warning statements, see Sections 7 and 9, A1.1.4, A2.3.1, and A2.10.1.

1.6This 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.

Committee
D 02
DocumentType
Test Method
Pages
8
ProductNote
Reconfirmed 2017
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM D 6514 : 2003 : R2019 : EDT 1 Standard Test Method for High Temperature Universal Oxidation Test for Turbine Oils
ASTM D 7666 : 2012 : R2019 Standard Specification for Triglyceride Burner Fuel
ASTM D 7826 : 2020 : REV A Standard Guide for Evaluation of New Aviation Gasolines and New Aviation Gasoline Additives
ASTM D 4310 : 2020 : REV A Standard Test Method for Determination of Sludging and Corrosion Tendencies of Inhibited Mineral Oils
ASTM D 664 : 2018 : EDT 2 Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration
ASTM D 943 : 2020 Standard Test Method for Oxidation Characteristics of Inhibited Mineral Oils
ASTM D 5770 : 2011 : R2017 Standard Test Method for Semiquantitative Micro Determination of Acid Number of Lubricating Oils During Oxidation Testing
ASTM D 5846 : 2007 : R2017 Standard Test Method for Universal Oxidation Test for Hydraulic and Turbine Oils Using the Universal Oxidation Test Apparatus
ASTM D 4304 : 2017 Standard Specification for Mineral and Synthetic Lubricating Oil Used in Steam or Gas Turbines
ASTM D 6514 : 2003 : R2019 Standard Test Method for High Temperature Universal Oxidation Test for Turbine Oils
ASTM D 4310 : 2010 : R2015 Standard Test Method for Determination of Sludging and Corrosion Tendencies of Inhibited Mineral Oils
ASTM D 7826 : 2019 Standard Guide for Evaluation of New Aviation Gasolines and New Aviation Gasoline Additives
ASTM D 4636 : 2017 Standard Test Method for Corrosiveness and Oxidation Stability of Hydraulic Oils, Aircraft Turbine Engine Lubricants, and Other Highly Refined Oils
ASTM D 4871 : 2011 : R2016 Standard Guide for Universal Oxidation/Thermal Stability Test Apparatus
ASTM D 6074 : 2015 Standard Guide for Characterizing Hydrocarbon Lubricant Base Oils
ASTM D 7666 : 2012 Standard Specification for Triglyceride Burner Fuel

ASTM D 974 : 2014 : EDT 2 Standard Test Method for Acid and Base Number by Color-Indicator Titration
ASTM D 974 : 2001 Standard Test Method for Acid and Base Number by Color-Indicator Titration
ASTM D 1193 : 1977 : R1983 : EDT 1 Standard Specification for Reagent Water
ASTM D 974 : 2021 Standard Test Method for Acid and Base Number by Color-Indicator Titration
ASTM D 1193 : 2006 : R2011 Standard Specification for Reagent Water
ASTM D 664 : 1995 Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration
ASTM D 943 : 2018 Standard Test Method for Oxidation Characteristics of Inhibited Mineral Oils
ASTM D 1193 : 1991 Standard Specification for Reagent Water
ASTM D 1193 : 1970 Standard Specification For Reagent Water
ASTM D 1193 : 2006 Standard Specification for Reagent Water
ASTM D 943 : 1999 Standard Test Method for Oxidation Characteristics of Inhibited Mineral Oils
ASTM D 1193 : 1999 Standard Specification for Reagent Water
ASTM D 1193 : 2006 : R2018 Standard Specification for Reagent Water
ASTM D 943 : 2017-08 TEST METHOD FOR OXIDATION CHARACTERISTICS OF INHIBITED MINERAL OILS

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