ASTM International - ASTM D8045-16e1

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

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Organization: ASTM International
Publication Date: 1 July 2016
Status: historical
Page Count: 6
ICS Code (Crude petroleum): 75.040
ICS Code (Petroleum products in general): 75.080
significance And Use:

5.1 Crude oils and oil sands bitumen contain naturally occurring acidic species. Acidity of crude oil has been implicated in corrosion of distribution and process systems. The relative amount of... View More

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 and health practices and determine the applicability of regulatory limitations prior to use. Some specific hazards statements are given in Section 7 on Safety Precautions.

Document History

July 1, 2017
Standard Test Method for Acid Number of Crude Oils and Petroleum Products by Catalytic Thermometric Titration
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...
July 1, 2017
Standard Test Method for Acid Number of Crude Oils and Petroleum Products by Catalytic Thermometric Titration
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...
July 1, 2016
Standard Test Method for Acid Number of Crude Oils and Petroleum Products by Catalytic Thermometric Titration
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...
ASTM D8045-16e1
July 1, 2016
Standard Test Method for Acid Number of Crude Oils and Petroleum Products by Catalytic Thermometric Titration
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...
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