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ASTM D 4739 : 2017

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 Base Number Determination by Potentiometric Hydrochloric Acid Titration
Available format(s)

Hardcopy , PDF

Superseded date

08-25-2023

Language(s)

English

Published date

02-07-2018

1.1This test method covers a procedure for the determination of basic constituents in petroleum products and new and used lubricants. This test method resolves these constituents into groups having weak-base and strong-base ionization properties, provided the dissociation constants of the more strongly basic compounds are at least 1000 times than that of the next weaker groups. This test method covers base numbers up to 250.

1.2In new and used lubricants, the constituents that can be considered to have basic properties are primarily organic and inorganic bases, including amino compounds. This test method uses hydrochloric acid as the titrant, whereas Test Method D2896 uses perchloric acid as the titrant. This test method may or may not titrate these weak bases and, if so, it will titrate them to a lesser degree of completion; some additives such as inhibitors or detergents may show basic characteristics.

1.3When testing used engine lubricants, it should be recognized that certain weak bases are the result of the service rather than having been built into the oil. This test method can be used to indicate relative changes that occur in oil during use under oxidizing or other service conditions regardless of the color or other properties of the resulting oil. The values obtained, however, are intended to be compared with the other values obtained by this test method only; base numbers obtained by this test method are not intended to be equal to values by other test methods. Although the analysis is made under closely specified conditions, this test method is not intended to, and does not, result in reported basic properties that can be used under all service conditions to predict performance of an oil; for example, no overall relationship is known between bearing corrosion or the control of corrosive wear in the engine and base number.

1.4This test method was developed as an alternative for the former base number portion of Test Method D664 (last published in Test Method D664 – 81).

1.4.1Colorimetric test methods for base number are Test Method D974, IP 139, and 5102.1 on acid and base number by extraction (color-indicator titration) of Federal Test Method Standard No. 791b. Test results by these methods may or may not be numerically equivalent to this test method.

1.5The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.6This 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.

1.7This 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
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM D 6987/D6987M : 2013 : REV A Standard Test Method for Evaluation of Diesel Engine Oils in T-10 Exhaust Gas Recirculation Diesel Engine (Withdrawn 2022)
ASTM D 8111 : 2019 Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence IIIH, Spark-Ignition Engine
ASTM D 6074 : 2015 Standard Guide for Characterizing Hydrocarbon Lubricant Base Oils
ASTM D 6224 : 2022 Standard Practice for In-Service Monitoring of Lubricating Oil for Auxiliary Power Plant Equipment
ASTM D 6750 : 2023 Standard Test Methods for Evaluation of Engine Oils in a High-Speed, Single-Cylinder Diesel Engine—1K Procedure (0.4 % Fuel Sulfur) and 1N Procedure (0.04 % Fuel Sulfur)
ASTM D 8126 : 2021 Standard Test Method for Efficient Basicity Determination by Potentiometric Hydrochloric Acid Titration
ASTM D 6074 : 2015 : R2022 Standard Guide for Characterizing Hydrocarbon Lubricant Base Oils
ASTM D 7549 : 2023 Standard Test Method for Evaluation of Heavy-Duty Engine Oils under High Output Conditions—Caterpillar C13 Test Procedure
ASTM D 6923 : 2023 Standard Test Method for Evaluation of Engine Oils in a High Speed, Single-Cylinder Diesel Engine—Caterpillar 1R Test Procedure
ASTM D 7468 : 2022 Standard Test Method for Cummins ISM Test
ASTM D 7484 : 2023 Standard Test Method for Evaluation of Automotive Engine Oils for Valve-Train Wear Performance in Cummins ISB Medium-Duty Diesel Engine
ASTM D 7415 : 2022 Standard Test Method for Condition Monitoring of Sulfate By-Products in In-Service Petroleum and Hydrocarbon Based Lubricants by Trend Analysis Using Fourier Transform Infrared (FT-IR) Spectrometry
ASTM D 7417 : 2017 Standard Test Method for Analysis of In-Service Lubricants Using Particular Four-Part Integrated Tester (Atomic Emission Spectroscopy, Infrared Spectroscopy, Viscosity, and Laser Particle Counter)
ASTM D 8279 : 2023 Standard Test Method for Determination of Timing-Chain Wear in a Turbocharged, Direct-Injection, Spark-Ignition, Four-Cylinder Engine
ASTM D 8111 : 2023 : REV A Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence IIIH, Spark-Ignition Engine
ASTM D 7414 : 2022 Standard Test Method for Condition Monitoring of Oxidation in In-Service Petroleum and Hydrocarbon Based Lubricants by Trend Analysis Using Fourier Transform Infrared (FT-IR) Spectrometry
ASTM D 8350 : 2022 Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence IVB Spark-Ignition Engine
ASTM D 8074 : 2022 Standard Test Method for Evaluation of Diesel Engine Oils in DD13 Diesel Engine
ASTM D 8048 : 2021 : REV A : EDT 1 Standard Test Method for Evaluation of Diesel Engine Oils in T-13 Diesel Engine
ASTM D 6681 : 2023 Standard Test Method for Evaluation of Engine Oils in a High Speed, Single-Cylinder Diesel Engine—Caterpillar 1P Test Procedure
ASTM D 7156 : 2019 Standard Test Method for Evaluation of Diesel Engine Oils in the T-11 Exhaust Gas Recirculation Diesel Engine
ASTM D 7422 : 2022 Standard Test Method for Evaluation of Diesel Engine Oils in T-12 Exhaust Gas Recirculation Diesel Engine
ASTM D 6681 : 2017 Standard Test Method for Evaluation of Engine Oils in a High Speed, Single-Cylinder Diesel Engine—Caterpillar 1P Test Procedure
ASTM D 7415 : 2018 Standard Test Method for Condition Monitoring of Sulfate By-Products in In-Service Petroleum and Hydrocarbon Based Lubricants by Trend Analysis Using Fourier Transform Infrared (FT-IR) Spectrometry
ASTM D 6224 : 2016 Standard Practice for In-Service Monitoring of Lubricating Oil for Auxiliary Power Plant Equipment
ASTM D 7422 : 2017 : REV A Standard Test Method for Evaluation of Diesel Engine Oils in T-12 Exhaust Gas Recirculation Diesel Engine
ASTM D 6750 : 2019 Standard Test Methods for Evaluation of Engine Oils in a High-Speed, Single-Cylinder Diesel Engine—1K Procedure (0.4 % Fuel Sulfur) and 1N Procedure (0.04 % Fuel Sulfur)
ASTM D 974 : 2014 : EDT 2 Standard Test Method for Acid and Base Number by Color-Indicator Titration
ASTM D 7414 : 2018 Standard Test Method for Condition Monitoring of Oxidation in In-Service Petroleum and Hydrocarbon Based Lubricants by Trend Analysis Using Fourier Transform Infrared (FT-IR) Spectrometry
ASTM D 6923 : 2018 Standard Test Method for Evaluation of Engine Oils in a High Speed, Single-Cylinder Diesel Engine—Caterpillar 1R Test Procedure
ASTM D 8074 : 2018 Standard Test Method for Evaluation of Diesel Engine Oils in DD13 Diesel Engine
ASTM D 7156 : 2017 Standard Test Method for Evaluation of Diesel Engine Oils in the T-11 Exhaust Gas Recirculation Diesel Engine
ASTM D 8126 : 2017 Standard Test Method for Efficient Basicity Determination by Potentiometric Hydrochloric Acid Titration
ASTM D 8048 : 2019 Standard Test Method for Evaluation of Diesel Engine Oils in T-13 Diesel Engine

ASTM D 4057 : 2019 Standard Practice for Manual Sampling of Petroleum and Petroleum Products
ASTM D 2896 : 1998 Standard Test Method for Base Number of Petroleum Products by Potentiometric Perchloric Acid Titration
ASTM D 2896 : 2005 Standard Test Method for Base Number of Petroleum Products by Potentiometric Perchloric Acid Titration
ASTM D 4057 : 1995 Standard Practice for Manual Sampling of Petroleum and Petroleum Products
ASTM D 974 : 2001 Standard Test Method for Acid and Base Number by Color-Indicator Titration
ASTM D 4177 : 2016 : EDT 1 Standard Practice for Automatic Sampling of Petroleum and Petroleum Products
ASTM D 664 : 2017 : REV A Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration
ASTM D 4177 : 1995 Standard Practice for Automatic Sampling of Petroleum and Petroleum Products
ASTM D 4057 : 2012 : R2018 Standard Practice for Manual Sampling of Petroleum and Petroleum Products
ASTM D 1193 : 1977 : R1983 : EDT 1 Standard Specification for Reagent Water
ASTM D 974 : 2022 Standard Test Method for Acid and Base Number by Color-Indicator Titration
ASTM D 4057 : 1981 : EDT 2 Standard Practice for Manual Sampling of Petroleum and Petroleum Products
ASTM D 2896 : 2007 : REV A Standard Test Method for Base Number of Petroleum Products by Potentiometric Perchloric Acid Titration
ASTM D 974 : 2021 Standard Test Method for Acid and Base Number by Color-Indicator Titration
ASTM D 2896 : 2011 Standard Test Method for Base Number of Petroleum Products by Potentiometric Perchloric Acid Titration
ASTM D 4057 : 2006 Standard Practice for Manual Sampling of Petroleum and Petroleum Products
ASTM D 1193 : 2006 : R2011 Standard Specification for Reagent Water
ASTM D 4177 : 2015 Standard Practice for Automatic Sampling of Petroleum and Petroleum Products
ASTM D 4057 : 2012 Standard Practice for Manual Sampling of Petroleum and Petroleum Products
ASTM D 2896 : 2001 : EDT 1 Standard Test Method for Base Number of Petroleum Products by Potentiometric Perchloric Acid Titration
ASTM D 664 : 1995 Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration
ASTM D 2896 : 2001 Standard Test Method for Base Number of Petroleum Products by Potentiometric Perchloric Acid Titration
ASTM D 4177 : 2022 Standard Practice for Automatic Sampling of Petroleum and Petroleum Products
ASTM D 1193 : 1991 Standard Specification for Reagent Water
ASTM D 2896 : 2003 Standard Test Method for Base Number of Petroleum Products by Potentiometric Perchloric Acid Titration
ASTM D 4177 : 1995 : R2010 Standard Practice for Automatic Sampling of Petroleum and Petroleum Products
ASTM D 4177 : 1995 : R2000 Standard Practice for Automatic Sampling of Peroleum and Petroleum Products
ASTM D 2896 : 2006 Standard Test Method for Base Number of Petroleum Products by Potentiometric Perchloric Acid Titration
ASTM D 664 : 2011 : REV A Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration
ASTM D 2896 : 2015 Standard Test Method for Base Number of Petroleum Products by Potentiometric Perchloric Acid Titration
ASTM D 4057 : 2022 Standard Practice for Manual Sampling of Petroleum and Petroleum Products
ASTM D 2896 : 2007 Standard Test Method for Base Number of Petroleum Products by Potentiometric Perchloric Acid Titration
ASTM D 4177 : 2016 Standard Practice for Automatic Sampling of Petroleum and Petroleum Products
ASTM D 1193 : 1970 Standard Specification For Reagent Water
ASTM D 4177 : 2020 Standard Practice for Automatic Sampling of Petroleum and Petroleum Products
ASTM D 4177 : 1995 : R2005 Standard Practice for Automatic Sampling of Petroleum and Petroleum Products
ASTM D 1193 : 2006 Standard Specification for Reagent Water
ASTM D 1193 : 1999 Standard Specification for Reagent Water
ASTM D 4057 : 1995 : R2000 Standard Practice for Manual Sampling of Petroleum and Petroleum Products
ASTM D 4177 : 2022 : EDT 1 Standard Practice for Automatic Sampling of Petroleum and Petroleum Products
ASTM D 1193 : 2006 : R2018 Standard Specification for Reagent Water
ASTM D 4177 : 2015 : REV A Standard Practice for Automatic Sampling of Petroleum and Petroleum Products
ASTM D 2896 : 2021 Standard Test Method for Base Number of Petroleum Products by Potentiometric Perchloric Acid Titration
ASTM D 4057 : 2006 : R2011 Standard Practice for Manual Sampling of Petroleum and Petroleum Products

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