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Widely regarded as the single most important advanced test for oil analysis, it is undeniable that a wide array of historical and potential problems can quickly be determined by monitoring the number and size-distribution of wear particles and contaminants in a used oil sample.

Fluid cleanliness is critical to a lubricating system’s success. When setting goals for keeping your industrial fluids clean, routine particle counting is a crucial step in achieving the cleanest fluid possible. The ISO (International Organization for Standardization) particle count determines size ranges and concentrations of solid particulate found in industrial fluids. Fluid Life reports the ISO Code cleanliness in the latest >4/6/14 micron format.

A particle count can be an early indicator of an array of potential problems that may exist and so is often an essential part of a proactive extra testing program. Detailed scale photographs are available which can assist the maintenance expert in determining the nature and quantity of particulate matter within the system.

ISO Particle Counts Brochure
ISO Particle Count Brochure.pdf

The ISO Particle Count is an excellent tool for "flowchart diagnosis" of many maintenance problems. It can also be an indicator of when positive things are happening within a system such as successful corrective maintenance.

The ISO Particle Count can provide:

  • Verification
  • Identification
  • Confirmation
Verifies Identifies Confirms
Filter Type Effectiveness Atmospheric Contamination Corrective Maintenance
Seal Performance Engine Wear and Blowby System Flushing
Bearing Condition Failed machine repairs Target Cleanliness Levels
Breather Condition Need for Ferrography Test Filter Cart Usage
Pump Condition Defective Filtering Devices Correct Drain Interval
Lubricant Storage Cleanliness Abrasive Wear Component Health

Oil Analysis-Understanding ISO Particle Counts Chart
Understanding ISO Particle Counts.pdf

Oil Analysis-Recommended ISO Cleanliness Levels Chart
Recommended ISO Cleanliness Levels.pdf

Understanding ISO Particle Counts

An ISO Particle count can provide:
  • an excellent general indicator of component condition.
  • a trigger for other advanced testing such as X-ray Fluorescence
  • a powerful diagnostic tool for your maintenance program.
  • an essential addition to your conventional sampling program.
  • excellent return on your oil analysis investment.

Actual ISO Particle Count Photographs.
Click to Enlarge.

For customers using Fluid Life Data Management Products such as WinRoast and MyLab, ISO Particle Count photographs are easily viewable and give service technicians another predictive tool in their maintenance program.

Maintenance Solutions

Once a maintenance technician has the testing information to determine the ISO Particle Count within a component a course of action can be taken such as:

  • Adjusting or optimizing oil change intervals.
  • Modifying their maintenance schedule.
  • Doing further testing to determine root cause of contamination.
Consult your Fluid Life Regional Account Manager concerning ISO Particle Counts as part of your maintenance program.