ASTM D7669-20
Standard Guide for Practical Lubricant Condition Data Trend Analysis

Standard No.

ASTM D7669-20

Release Date

2020

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D7669-20

Scope

1.1 This guide covers practical techniques for condition data trend analysis. 1.2 The techniques may be utilized for all instrumentation that provides numerical test results. This guide is written specifically for data obtained from lubricant samples. Other data obtained and associated with the machine may also be used in determining the machine condition. 1.3 This guide provides a methodology for assessing changes in lubricant during service. For limits on a specific lubricant parameter used in different system types, users should refer to Practice D4378, Practice D6224, or other established industry criteria, such as from the OEM. Guide D7720 may be used to determine limits if unavailable through the other references given. 1.4 This guide does not address upper or lower control limits. These limits are provided by product manufacturers, defined in ASTM specifications, or both. The range between upper and lower control limits should be greater than the range within each test method’s repeatability coefficient. See Practices D3244, D6299, and D6792 for more information about ensuring that process control limits do not violate statistical fundamentals. 1.5 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. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the 1 This guide is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcommittee D02.96.04 on Guidelines for In-Services Lubricants Analysis. Current edition approved Oct. 1, 2020. Published October 2020. Originally approved in 2011. Last previous edition approved in 2015 as D7669 – 15. DOI:10.1520/D7669-20. *A Summary of Changes section appears at the end of this standard Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States 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. Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D7669-20 Referenced Document

• ASTM D3244 Standard Practice for Utilization of Test Data to Determine Conformance with Specifications
• 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 D4378 Standard Practice for In-Service Monitoring of Mineral Turbine Oils for Steam and Gas Turbines
• ASTM D6224 Standard Practice for In-Service Monitoring of Lubricating Oil for Auxiliary Power Plant Equipment
• ASTM D6299 Standard Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance*， 2023-07-01 Update
• ASTM D6792 Standard Practice for Quality Management Systems in Petroleum Products, Liquid Fuels, and Lubricants Testing Laboratories*， 2023-11-01 Update
• ASTM D7720 Standard Guide for Statistically Evaluating Measurand Alarm Limits when Using Oil Analysis to Monitor Equipment and Oil for Fitness and Contamination*， 2021-10-01 Update
• ASTM D7874 Standard Guide for Applying Failure Mode and Effect Analysis (FMEA) to In-Service Lubricant Testing*， 2022-10-01 Update
• ASTM D8112 Standard Guide for Obtaining In-Service Samples of Turbine Operation Related Lubricating Fluid*， 2024-03-20 Update
• ASTM E2587 Standard Practice for Use of Control Charts in Statistical Process Control*， 2024-04-22 Update

ASTM D7669-20 history

• 2020 ASTM D7669-20 Standard Guide for Practical Lubricant Condition Data Trend Analysis
• 2015 ASTM D7669-15 Standard Guide for Practical Lubricant Condition Data Trend Analysis
• 2011 ASTM D7669-11 Standard Guide for Practical Lubricant Condition Data Trend Analysis