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ASTM D7898-14

(Practice)

Standard Practice for Lubrication and Hydraulic Filter Debris Analysis (FDA) for Condition Monitoring of Machinery

Standard Practice for Lubrication and Hydraulic Filter Debris Analysis (FDA) for Condition Monitoring of Machinery

SCOPE
1.1 This practice is intended to cover the extraction, analysis, and information management pertaining to visible wear debris collected from oil system filters or debris retention screens. Further, it is intended that this practice be a practical reference for those involved in FDA.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3 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.

General Information

Status
Historical
Publication Date
14-Jan-2014
ICS
23.100.60 - Filters, seals and contamination of fluids
Technical Committee
D02 - Petroleum Products, Liquid Fuels, and Lubricants
Drafting Committee
D02.96.06 - Practices and Techniques for Prediction and Determination of Microscopic Wear and Wear-related Properties
Current Stage
Ref Project

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ASTM D7898-14 - Standard Practice for Lubrication and Hydraulic Filter Debris Analysis (FDA) for Condition Monitoring of MachineryASTM D7898-14 - Standard Practice for Lubrication and Hydraulic Filter Debris Analysis (FDA) for Condition Monitoring of Machinery
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ASTM D7898-14 - Standard Practice for Lubrication and Hydraulic Filter Debris Analysis (FDA) for Condition Monitoring of Machinery
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D7898 − 14
Standard Practice for
Lubrication and Hydraulic Filter Debris Analysis (FDA) for
1
Condition Monitoring of Machinery
This standard is issued under the fixed designation D7898; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
Thepurposeofthispracticeistodescribebestpracticemethodsfortheanalysisoffilterdebrisfrom
machinery lubrication or hydraulic systems primarily for the purpose of machinery condition
monitoring. The purpose of Filter Debris Analysis (FDA) is to determine the health of oil-wetted
machinery by analyzing the size, quantity, morphology, and composition of debris trapped by the
system filter. FDA is emerging as an important condition monitoring technique as fine filtration
becomes more common and the associated reduction of metallic particulates makes traditional
elemental analysis of the lubricant less effective. System filters have an added advantage over
traditional sample-based techniques in that they capture a high percentage of the total system debris
(metallic, non-metallic, and organic particulate contamination) within the size range useful for
machinery condition monitoring.
1. Scope mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
1.1 This practice is intended to cover the extraction,
analysis, and information management pertaining to visible
2. Referenced Documents
weardebriscollectedfromoilsystemfiltersordebrisretention
2
2.1 ASTM Standards:
screens. Further, it is intended that this practice be a practical
D7684Guide for Microscopic Characterization of Particles
reference for those involved in FDA.
from In-Service Lubricants
1.2 The values stated in SI units are to be regarded as
D7685Practice for In-Line, Full Flow, Inductive Sensor for
standard. No other units of measurement are included in this
Ferromagnetic and Non-ferromagnetic Wear Debris De-
standard.
termination and Diagnostics forAero-Derivative andAir-
1.3 This standard does not purport to address all of the
craft Gas Turbine Engine Bearings
safety concerns, if any, associated with its use. It is the
D7720Guide for Statistically Evaluating Measurand Alarm
responsibility of the user of this standard to establish appro-
Limits when Using Oil Analysis to Monitor Equipment
priate safety, health, and environmental practices and deter-
and Oil for Fitness and Contamination
mine the applicability of regulatory limitations prior to use.
D7690Practice for Microscopic Characterization of Par-
1.4 This international standard was developed in accor-
ticles from In-Service Lubricants by Analytical Ferrogra-
dance with internationally recognized principles on standard-
phy
ization established in the Decision on Principles for the
F316Test Methods for Pore Size Characteristics of Mem-
Development of International Standards, Guides and Recom-
brane Filters by Bubble Point and Mean Flow Pore Test
G40Terminology Relating to Wear and Erosion
1
This practice is under the jurisdiction ofASTM Committee D02 on Petroleum
Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcom-
2
mittee D02.96.06 on Practices and Techniques for Prediction and Determination of For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Microscopic Wear and Wear-related Properties. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved Jan. 15, 2014. Published February 2014. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D7898-14. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D7898 − 14
D4175Terminology Relating to Petroleum Products, Liquid 3.1.4 contaminant particles—particles introduced from an
Fuels, and Lubricants extraneous source into the lubricant of a machine or engine.
D7690
2.2 Other Standards:
TTCP-AER-TP3-TR01-2010Guide for Filter DebrisAnaly-
3.1.5 debris—in tribology, particles that have become de-
3
sis
tached in a wear or erosion process. G40
3.1.6 debris—in tribology, solid or semi-solid particulate
3. Terminology
matter introduced to lubricant through contamination or de-
3.1 Definitions:
tached from a surface due to wear, corrosion, or erosion
3.1.1 abrasive wear—wear due to hard particles or hard
process. D7684
protuberancesforcedagainstandmovingalongasolidsurface.
3.1.7 debris—in internal combustion engines, solid con-
D4175
taminant materials unintentionally introduced into the engine
3.1.1.1
...

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4.1 This practice provides for the processing of liquid samples. It will provide the optimum sample processing for visual contamination methods such as Test Methods F312.
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