ASTM D7684-11(2016)
Standard Guide for Microscopic Characterization of Particles from In-Service Lubricants
- Standard No.
- ASTM D7684-11(2016)
- Release Date
- 2016
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM D7684-11(2020)
- Latest
- ASTM D7684-11(2020)
- Scope
- 1.1 This guide covers the classification and reporting of results from in-service lubricant particulate debris analysis obtained by microscopic inspection of wear and contaminant particles extracted from in-service lubricant and hydraulic oil samples. This guide suggests standardized terminology to promote consistent reporting, provides logical framework to document likely or possible root causes, and supports inference associated machinery health condition or severity based on available debris analysis information. 1.2 This guide shall be used in conjunction with an appropriate wear debris analysis sample preparation and inspection technique including, but not limited to, one of the following: 1.2.1 Ferrography using linear glass slides, 1.2.2 Ferrography using rotary glass slides, 1.2.3 Patch analysis using patch makers (filtration through membrane filters), 1.2.4 Filter debris analysis, 1.2.5 Magnetic plug inspection, or 1.2.6 Other means used to extract and inspect particulate debris from in-service lubricants. 1.3 This standard is not intended to evaluate or characterize the advantage or disadvantage of one or another of these particular particle extraction and inspection methods. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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 and health practices and determine the applicability of regulatory limitations prior to use.
ASTM D7684-11(2016) Referenced Document
- ASTM D4130 Standard Test Method for Sulfate Ion in Brackish Water, Seawater, and Brines
- ASTM D4175 Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants*， 2023-07-01 Update
- ASTM D7416 Standard Practice for Analysis of In-Service Lubricants Using a Particular Five-Part (Dielectric Permittivity, Time-Resolved Dielectric Permittivity with Switching Magnetic Fields, Laser Particle Coun*， 2020-05-01 Update
- ASTM D7596 Standard Test Method for Automatic Particle Counting and Particle Shape Classification of Oils Using a Direct Imaging Integrated Tester*， 2023-01-01 Update
- ASTM D7647 Standard Test Method for Automatic Particle Counting of Lubricating and Hydraulic Fluids Using Dilution Techniques to Eliminate the Contribution of Water and Interfering Soft Particles by Light Extinc*， 2024-02-01 Update
- ASTM D7690 Standard Practice for Microscopic Characterization of Particles from In-Service Lubricants by Analytical Ferrography*， 2024-04-21 Update
- ASTM G40 Standard Terminology Relating to Wear and Erosion
- ISO 11171 Hydraulic fluid power — Calibration of automatic particle counters for liquids*， 2022-03-18 Update
ASTM D7684-11(2016) history
- 2020 ASTM D7684-11(2020) Standard Guide for Microscopic Characterization of Particles from In-Service Lubricants
- 2016 ASTM D7684-11(2016) Standard Guide for Microscopic Characterization of Particles from In-Service Lubricants
- 2011 ASTM D7684-11 Standard Guide for Microscopic Characterization of Particles from In-Service Lubricants
