Lab and Pilot Plant Services

Eaton’s filtration lab technicians will analyze customer-submitted samples in their ISO 9001 certified lab and identify the suspended solids and particle size distribution in their process liquids. This capability allows us to take the guesswork out of which filtration technology will work best in the field and can aid in filter media selection and system sizing.

Fill out the process information worksheet to submit a sample.


The following tests are available for water, oil or alcohol-based samples:


Asphaltene Testing (Test #3279)

A filter extraction technique for determining the weight concentration of ashphaltenes as defined by insolubility in normal heptane solvent


Total Suspended Solids (TSS): weight concentration of insoluble solids present in aqueous, hydrocarbon, or paraffinic solutions

  • Alcohol Based (Test #4409): emulsions/alcoholic beverages
  • Oil Based (Test #4405): wax free petroleum solutions
  • Paraffin (Test #4406): waxy petroleum solutions
  • Aqueous (Test #4404): water based solutions


Karl-Fischer Titration (Test #1364)

Determines the presence of water in oil based solutions, such as hydraulic oil, paint, varnish, lacquer, and other related products



  • Dynamic (Test #445D): The ratio of shear stress to shear rate. The SI unit of dynamic viscosity is the Poise (kg/[m*s])
  • Kinematic (Test #445K): The dynamic viscosity normalized by a liquid’s density. The SI unit of kinematic viscosity is the Stoke (m2/s)


pH (Test #pH)

acidity or basicity (alkalinity) of an aqueous solution


Ash Content (Test #482)

Inorganic solids content by burn-off


Turbidity (Test #7027)

Quantifies the reduction in transparency of aqueous solutions caused by undissolved matter


Benchtop Filtration (Test #bench) 

Lab simulation of filter performance based on customer requirements and sample type


Inductively coupled plasma optical emission spectroscopy (Test #5185) (ICP-OES), is an analytical technique used for the detection of trace metals.

  • ICP-OES can be used for motor oil (and other lubricating oil) analysis.
  • Analyzing used motor oil reveals details about how the engine is operating.
  • Parts that wear in the engine will deposit traces in the oil which can be detected with ICP-OES analysis.The amount of trace elements in the sample can help to determine whether parts are failing.
  • ICP-OES can also determine what amount of certain oil additives remain and therefore indicate how much service life the oil has remaining.
  • ICP-OES is also used during production for quality control and compliance with production and industry specifications.
  • ICP-OES can be used for waste-water analysis in accordance with EPA standards

Particle size

The following tests are available for water, oil or alcohol-based samples: 


Particle size distribution (Test #4407, 4408, 4410)

Quantifies the non-soluble content of fluids from 0.5-400 microns in size. Other particle sizes can be determined based on need. Results from this test method are interpreted both by population-based analysis, and by volumetric-based analysis


The following tests are available for water, oil or alcohol-based samples:

Microscopy / Photography (Test #11117)

Techniques for determining the physical properties of laboratory samples or other objects of interest

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