Cleanliness Testing and Contaminant Identification Services


Cleanliness testing helps to mitigate issues during the manufacturing process. Very precise testing techniques are required to identify the source and composition of the contaminants.


Contaminant Identification & Analysis

Contaminants can come from a wide range of sources including oils from equipment, residues from human hands, smudges and streaks from manufacturing processes and corrosion from leaks of water, coolants and more.

Gravimetric Testing

Gravimetric cleanliness testing involves:

  1. Washing the part to transfer particulate and other contamination from the part to the washing fluid.
  2. Filtering the washing fluid to transfer the contaminant to an analytical membrane filter of defined size.
  3. Weighing the change in filter mass to determine the contaminant mass.
  4. Reporting and analyzing results.
cleanliness testing-contaminant analysis-imr test labs
Technician cleaning metal component with solvent to remove contaminants
Metal gear being rinsed with solvent to clean manufacturing contaminants from finished parts


Medical Device- Testing Services

Cleanliness testing is critical step for any medical device intended for permanent implantation, as well as devices such as surgical instruments. These products must meet stringent cleanliness standards to minimize the risk of post-surgery complications. To ensure the viability of such devices, their surface cleanliness must be determined before they can be used in practical applications.

IMR's medical device cleanliness team utilizes various extraction and analytical techniques to characterize both particulate debris, as well as machining and cleaning residues, on implants and surgical devices.

We test for medical device cleanliness to the ASTM F 2459 standard, which covers extraction and gravimetric methods.

Transportation Industry- Contaminant Identification

Safety of transportation vehicle components is paramount.  Cleanliness testing allows manufacturers to identify foreign residue or particles present in components and identify the contaminants. 

Stringent testing is performed according to cleanliness standards in order to ensure that the components used are ideal for the application and that the end result is both strong and safe. 

Transportation cleanliness testing is overseen by the American Society of Automotive Engineers (SAE). 

Aerospace Manufacturing- Failure & Corrosion Prevention

Cleanliness testing performed in the aerospace industry helps to predict failure and ensures corrosion prevention. 

Circuits, telecommunications, hydraulics, automation, fueling, and many other aspects of aerospace manufacturing and performance can be cleanliness tested. 

Aerospace cleanliness testing is overseen by the American Aerospace Industry Association (AIA).  

Shiny metal automotive component
Shiny and coated aerospace wheel components cutaway to reveal assembly details


  • ISO 10993- Part 12: Medical Device Testing
  • ISO 16232 - Automotive Parts / Liquids
  • ASTM F 2459 - Medical Devices
  • ASTM E 1019
  • ASTM E 1447
  • ASTM E 1409


What is the purpose of Cleanliness Testing?

Cleanliness testing identifies foreign residues and particles, in order to determine whether their presence will affect the overall performance of a component or material. 

How long does Cleanliness Testing take to complete?

Typically cleanliness testing can be performed in a matter of days and should it be necessary, expedited testing is available.  Contact IMR Test Labs for more information.

What materials can be tested for Cleanliness?

Metals, non-metals, porous surfaces, polymers, and natural materials can all be tested for cleanliness.  IMR Test Labs are able to test a variety of materials in any of our locations.  

Alloy Chemistry
Antimony Analysis (ICP)
Cadmium Analysis (ICP)
Carbon, Sulfur, Hydrogen, Oxygen  & Nitrogen

Contamination ID

Contaminant/ Corrodent Analysis 
Filler/Additive Analysis

Halogen Analysis (IC)

Heavy Metals Analysis
Hex Chrome (UV-VIS)
ICP-AES Analysis
ICP-MS Analysis
Impurities Analysis
Ion Chromatography
Material Certification
Metal Purity
OES Analysis
On-site PMI
PMI Testing (Positive Material ID)
Particle Size Analysis
Percent Crystallinity

Polymer Testing
Powder Diffraction
Powdered Metal Analysis
Precious Metal Assay
Quantitative Analysis
Resistivity (ASTM D1125)
Semi-Quantitative Analysis
Trace Element Analysis
Unknown Alloy Identification
Unknown Material Identification
XRD Analysis
XRF Analysis


Click here for a complete list of accreditations and certifications for all IMR Test Labs locations.

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