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ASTM D 7684 : 2011 : R2020

Current

Current

The latest, up-to-date edition.

Standard Guide for Microscopic Characterization of Particles from In-Service Lubricants

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-12-2020

€56.53
Excluding VAT

Committee
D 02
DocumentType
Guide
Pages
9
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

1.1This 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.

1.2This 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:

1.2.1Ferrography using linear glass slides,

1.2.2Ferrography using rotary glass slides,

1.2.3Patch analysis using patch makers (filtration through membrane filters),

1.2.4Filter debris analysis,

1.2.5Magnetic plug inspection, or

1.2.6Other means used to extract and inspect particulate debris from in-service lubricants.

1.3This standard is not intended to evaluate or characterize the advantage or disadvantage of one or another of these particular particle extraction and inspection methods.

1.4The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5This 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.

1.6This 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 D 7416 : 2024 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 Counter, Microscopic Debris Analysis, and Orbital Viscometer) Integrated Tester
ASTM G 40 : 2021 Standard Terminology Relating to Wear and Erosion
ASTM D 7647 : 2024 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 Extinction
ASTM D 7596 : 2014 Standard Test Method for Automatic Particle Counting and Particle Shape Classification of Oils Using a Direct Imaging Integrated Tester
ASTM D 4175 : 2020 : REV B Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
ASTM D 7416 : 2009 : R2020 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 Counter, Microscopic Debris Analysis, and Orbital Viscometer) Integrated Tester
ASTM D 4175 : 2022 Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
ASTM D 4175 : 2024 : EDT 1 Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
ASTM D 4175 : 2001 : EDT 1 Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
ASTM D 4175 : 2020 : REV B : EDT 1 Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
ASTM D 7690 : 2011 : R2017 Standard Practice for Microscopic Characterization of Particles from In-Service Lubricants by Analytical Ferrography
ASTM D 4175 : 2022 : REV A Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
ASTM D 4175 : 2002 Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
ASTM D 4175 : 2023 Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
ASTM D 7647 : 2010 : R2018 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 Extinction
ASTM D 4175 : 2022 : REV A : EDT 1 Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
ASTM D 7690 : 2011 : R2021 Standard Practice for Microscopic Characterization of Particles from In-Service Lubricants by Analytical Ferrography
ASTM D 7596 : 2023 Standard Test Method for Automatic Particle Counting and Particle Shape Classification of Oils Using a Direct Imaging Integrated Tester
ASTM G 40 : 2021 : REV A Standard Terminology Relating to Wear and Erosion
ASTM D 4130 : 2015 Standard Test Method for Sulfate Ion in Brackish Water, Seawater, and Brines (Withdrawn 2024)
ASTM D 4175 : 2023 : EDT 1 Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
ASTM D 4175 : 2023 : REV A Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
ASTM D 4175 : 2022 : EDT 1 Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
ASTM G 40 : 2022 Standard Terminology Relating to Wear and Erosion
ASTM G 40 : 2022 : REV A Standard Terminology Relating to Wear and Erosion
ASTM D 4175 : 2024 Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
ASTM G 40 : 2017 Standard Terminology Relating to Wear and Erosion
ASTM D 7596 : 2024 Standard Test Method for Automatic Particle Counting and Particle Shape Classification of Oils Using a Direct Imaging Integrated Tester

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