ASTM D8045-17(2023) PDF

Scope: 1.1 This 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. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 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. Some specific hazards statements are given in Section 7 on Safety Precautions. 1.4 This 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.

ASTM D8045-17(2023) Referenced Document

ASTM D1193 Standard Specification for Reagent Water
ASTM D4057 Standard Practice for Manual Sampling of Petroleum and Petroleum Products
ASTM D4175 Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants*， 2023-07-01 Update
ASTM D4177 Standard Practice for Automatic Sampling of Petroleum and Petroleum Products
ASTM D5854 Standard Practice for Mixing and Handling of Liquid Samples of Petroleum and Petroleum Products
ASTM D6299 Standard Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance*， 2023-07-01 Update
ASTM D664 Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration
ASTM D974 Standard Test Method for Acid and Base Number by Color-Indicator Titration

2023 ASTM D8045-17(2023) Standard Test Method for Acid Number of Crude Oils and Petroleum Products by Catalytic Thermometric Titration
2017 ASTM D8045-17e1 Standard Test Method for Acid Number of Crude Oils and Petroleum Products by Catalytic Thermometric Titration
2017 ASTM D8045-17 Standard Test Method for Acid Number of Crude Oils and Petroleum Products by Catalytic Thermometric Titration
2016 ASTM D8045-16e1 Standard Test Method for Acid Number of Crude Oils and Petroleum Products by Catalytic Thermometric Titration
2016 ASTM D8045-16 Standard Test Method for Acid Number of Crude Oils and Petroleum Products by Catalytic Thermometric Titration