ASTM D5770-23
Standard Test Method for Semiquantitative Micro Determination of Acid Number of Lubricating Oils During Oxidation Testing (Standard + Redline PDF Bundle)

Standard No.

ASTM D5770-23

Published By

American National Standards Institute （ANSI)

Latest

ASTM D5770-23

Scope

1.1 This test method is a semiquantitative micro method intended for monitoring the changes in acidic constituents occurring in lubricating oils during oxidation testing, when the acid number of such oils falls within the range from 0.02 mg to 1.0 mg of potassium hydroxide per gram of sample. It is applicable to such oils as turbine oils, hydraulic oils, and other circulating oils. NOTE 1—This test method is a micro version of Test Method D974 and it produces results similar to that method. 1.2 This test method is designed for use where sample size is limited. It shall not be used as a replacement for higher precision methods such as Test Methods D974 or D664. It shall not be used to monitor oils in-service. 1.3 The values stated in SI units are to be regarded as the standard. 1.3.1 Exception—The values given in parentheses are for information only. 1.4 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. 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 D5770-23 Referenced Document

• ASTM D3339 Standard Test Method for Acid Number of Petroleum Products by Semi-Micro Color Indicator Titration*， 2000-01-01 Update
• ASTM D4175 Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants*， 2023-07-01 Update
• ASTM D4871 Standard Guide for Universal Oxidation/Thermal Stability Test Apparatus*， 2022-04-01 Update
• ASTM D664 Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration*， 1995-04-21 Update
• ASTM D943 Standard Test Method for Oxidation Characteristics of Inhibited Mineral Oils*， 1999-04-21 Update
• ASTM D974 Standard Test Method for Acid and Base Number by Color-Indicator Titration*， 1997-04-21 Update

ASTM D5770-23 history

• 1970 ASTM D5770-23 Standard Test Method for Semiquantitative Micro Determination of Acid Number of Lubricating Oils During Oxidation Testing (Standard + Redline PDF Bundle)
• 2017 ASTM D5770-11(2017) Standard Test Method for Semiquantitative Micro Determination of Acid Number of Lubricating Oils During Oxidation Testing
• 2011 ASTM D5770-11 Standard Test Method for Semiquantitative Micro Determination of Acid Number of Lubricating Oils During Oxidation Testing
• 2002 ASTM D5770-02(2007) Standard Test Method for Semiquantitative Micro Determination of Acid Number of Lubricating Oils During Oxidation Testing
• 2002 ASTM D5770-02 Standard Test Method for Semiquantitative Micro Determination of Acid Number of Lubricating Oils During Oxidation Testing
• 1996 ASTM D5770-96 Standard Test Method for Semiquantitative Micro Determination of Acid Number of Lubricating Oils During Oxidation Testing