Oil Analysis

Oil Analysis

Oil analysis is a powerful predictive tool that provides diagnostic testing designed to evaluate lubricant condition, component wear and contamination.

Having oil analysis done on a regular basis establishes a baseline of normal wear and can help indicate when abnormal wear or contamination is occurring. A detailed analysis of an oil sample is a valuable preventive maintenance tool. In many cases, it enables identification of potential problems before a major repair is necessary and has the potential to reduce the frequencies of oil changes.

Oil analysis reveals information that can be broken down into these three categories:

  • Lubricant Condition: The assessment of the lubricant condition reveals whether the system fluid is healthy and fit for further service or ready for a change.
  • Contaminants: Increased contaminants from the surrounding environment in the form of dirt, water and process contamination are the leading cause of machine degradation and failure. Increased contamination indicates it is time to take action in order to save the oil and avoid unnecessary machine wear.
  • Machine Wear: An unhealthy machine generates wear particles at an exponential rate. The detection and analysis of these particles assist in making critical maintenance decisions. Machine failure due to worn out components can be avoided. It is important to remember that healthy and clean oil leads to the minimization of machine wear.

Optical Particle Count

Membrane Patch Colorimetry

Pore Blockage Particle Count




Ferrous Wear Concentration

Fuel Dilution

Base Number

Ultra Centrifuge



Karl Fischer Water

Acid Number

Ftir Spectroscopy


Elemental Spectroscopy

Analytical Ferrography

Arrelic Oil Analysis Comprehensive Test List

Analytical Test Method
Acid Crack IWI-370
Acid Number ASTM D974
Analytical Ferrography IWI-180
Bacteria Test IWI-350
Base Number ASTM D4739
Chlorine ASTM D5384
Color ASTM D1500
Copper Corrosion ASTM D130
Crackle IWI-130
Demulsibility ASTM D1401
Dielectric Strength ASTM D877
Dropping Point ASTM 2265
EDXRF Elements IWI-270
Extraction IWI-230
Filter Debris Analysis IWI-271
Ferrous Wear Concentration IWI 160
Flash Point ASTM D92
Flash Point ASTM D93
Foam Seq 1 and Seq 3 ASTM D892
Freezing Point IWI-240
FTIR JOAP Method, TestOil Turbine Method
Fuel Dilution by GC ASTM D7593
Glycol IWI-340
Gravimetric Analysis ASTM D4898
Elemental Spectroscopy ASTM D5185
Karl Fischer Water ASTM D 6304 Procedure A and C
Membrane Patch Colorimetry ASTM D7843
Nitrites IWI-320
Particle Count Pore Blockage
Particle Count Optical
pH IWI-142
Pour Point ASTM D97
Reserve Alkalinity IWI-143
Rotating Pressure Vessel Oxidation ASTM D2272
Rust ASTM D665 Procedure A and B
Specific Gravity ASTM D1298
Sugar IWI-200
Tramp Oil IWI-360
Ultra Centrifuge IWI-251
Viscosity @ 100 ASTM D445
Viscosity @ 40 ASTM D445
Viscosity Index ASTM 2270
Viscosity SUS ASTM D2161
Yeast and Mold IWI 350

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