ASTM D1093-23 PDF

Scope: 1.1 This test method covers the qualitative determination of the acidity of hydrocarbon liquids and their distillation residues. (Warning—Many hydrocarbon liquids are extremely flammable. Harmful if inhaled. Hydrocarbon liquid vapors can cause a flash fire.) 1.2 If desired to determine the basicity of a hydrocarbon liquid, proceed in accordance with 9.2 or 9.3, but substitute 3 drops of phenolphthalein indicator solution for the methyl orange indicator. A pink or red color in the aqueous solution when phenolphthalein is used indicates basicity. 1.3 The results obtained by this test method are qualitative expressions. However, for the preparation of reagents and in the procedure, acceptable SI units are to be regarded as the standard. 1.4 This standard does not purport to address all of the safety problems, 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. 1.5 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 D1093-23 Referenced Document

ASTM D1078 Standard Test Method for Distillation Range of Volatile Organic Liquids
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
ASTM D4177 Standard Practice for Automatic Sampling of Petroleum and Petroleum Products
ASTM D850 Standard Test Method for Distillation of Industrial Aromatic Hydrocarbons and Related Materials
ASTM D86 Standard Test Method for Distillation of Petroleum Products
ASTM D91 Standard Test Method for Precipitation Number of Lubricating Oils

2023 ASTM D1093-23 Standard Test Method for Acidity of Hydrocarbon Liquids and Their Distillation Residues
2017 ASTM D1093-11(2017) Standard Test Method for Acidity of Hydrocarbon Liquids and Their Distillation Residues
2011 ASTM D1093-11 Standard Test Method for Acidity of Hydrocarbon Liquids and Their Distillation Residues
2004 ASTM D1093-04(2007) Standard Test Method for Acidity of Hydrocarbon Liquids and Their Distillation Residues
2004 ASTM D1093-04 Standard Test Method for Acidity of Hydrocarbon Liquids and Their Distillation Residues
1998 ASTM D1093-98 Standard Test Method for Acidity of Hydrocarbon Liquids and Their Distillation Residues