Standard Test Method for Acid Number of Crude Oils and Petroleum Products by Catalytic Thermometric Titration

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

03-30-2023

Publisher

American Society for Testing and Materials

1.1This test method covers the determination of acidic components in crude oil and petroleum products including waxes, bitumen, base stocks, and asphalts that are soluble in mixtures of xylenes and propan-2-ol. It is applicable for the determination of acids whose dissociation constants in water are larger than 10^–9; extremely weak acids whose dissociation constants are smaller than 10^–9 do not interfere. The values obtained by this test method may not be numerically equivalent to other acid value measurements. The range of KOH acid numbers included in the precision statement is 0.1 mg/g to 16 mg/g.

1.2The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3This 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. Some specific hazards statements are given in Section 7 on Safety Precautions.

1.4This 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	6
PublisherName	American Society for Testing and Materials
Status	Current
Supersedes	ASTM D 8045 : 2017 : EDT 1

ASTM D 4057 : 2019	Standard Practice for Manual Sampling of Petroleum and Petroleum Products
ASTM D 974 : 2014 : EDT 2	Standard Test Method for Acid and Base Number by Color-Indicator Titration
ASTM D 664 : 2017 : REV A	Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration
ASTM D 6299 : 2022 : EDT 1	Standard Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance
ASTM D 974 : 2022	Standard Test Method for Acid and Base Number by Color-Indicator Titration
ASTM D 974 : 2021	Standard Test Method for Acid and Base Number by Color-Indicator Titration
ASTM D 6299 : 2023 : REV A	Standard Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance
ASTM D 4175 : 2022 : REV A	Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
ASTM D 4175 : 2023	Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
ASTM D 6299 : 2023 : EDT 1	Standard Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance
ASTM D 4175 : 2022 : REV A : EDT 1	Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
ASTM D 6299 : 2023	Standard Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance
ASTM D 4175 : 2023 : EDT 1	Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
ASTM D 4175 : 2023 : REV A	Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
ASTM D 664 : 2011 : REV A	Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration