Technical Cleanliness Microscopes

What is Technical Cleanliness?

Contamination control is a key issue in manufacturing and production. Technical cleanliness is important for the automotive, aviation and space industry, manufacturers of oils and lubricants, and medical product manufacturers. The functionality and lifetime of certain products is directly linked to the degree of surface contamination with residual dirt particles. The reduction and avoidance of malfunction and breakdown is one of the driving demands in technical cleanliness of technical parts. Technical cleanliness testing measures the particulate contamination on product surfaces. Cleanliness testing of technical products helps to improve product quality, extends product lifetime, and improves the quality assurance of the manufacturing process. Cleanliness testing of medical products helps decrease the risk of repulsion reactions, and improves tissue compatibility.

What Industries Use Technical Cleanliness?

  • Automotive Industry, NEV
  • Medical Technology Manufacturing
  • Additive Manufacturing
  • Aerospace Aviation and Space Industry
  • Manufacturers of Oils and Lubricants

What is Technical Cleanliness Looking For?

  • Technical Cleanliness for Components: Metallic shiny particles (machining chips, metal scraps and flakes), non-metallic shiny particles (laquer, plastic, and abrasive residues) , fibers.
  • Technical Cleanliness of Oil: Is the used oil clean? What types of contaminants are in the oil? Where are contaminants originating from? Is the machine degrading abnormally?
  • Technical Cleanliness for Medical Devices: Syringes, implants, etc. all need to be produced in an extra clean production environment for medical use.
  • Technical Cleanliness in Assembly: Testing of environmental conditions such as air or working benches.

What are Possible Contamination Sources and Applications?

Technical Cleanliness particles between moving parts   Technical Cleanliness electrical contacts  TCA particles in injection nozzles  TCA medical implants  TCA oil in lubricants
 Particles Between
Moving Parts
 Particles Between
Electrical Contacts
 Particles in
Injection Nozzles
 Particles in
Syringes and Implants
 Particles in
Oil and Lubricants

What Types of Particles are Found in Technical Cleanliness Testing?

  1. Hard Particles = Metals, Minerals, Ceramics
  2. Soft Particles = Fibers, Polymers, Cellulose
  3. Electrically Conducting Particles = Steel, Copper, Aluminum

What are the Inspection Standards for Technical Cleanliness?

Technical Cleanliness Standards:

Oil Cleanliness Standards:

Cleanliness of Manufacturing Medical Devices:

What are the Technical Cleanliness Microscope Options?

Cleanliness testing involves taking a particle membrane filter from a cleaning cabinet or other particle extraction method and placing it under the microscope for technical cleanliness analysis. The chart below details the technical cleanliness microscopes available along with the particle size they can view.

 ZEISS Stereo V8 Technical Cleanliness Microscope
 ZEISS Axioscope 7 Technical Cleanliness Microscope
ZEISS AxioZoom V16 Technical Cleanliness Microscope
 ZEISS Stereo V8 Technical Cleanliness Microscope  ZEISS Axioscope 7 Technical Cleanliness Microscope  ZEISS AxioZoom V16 Technical Cleanliness Microscope
 Particle size ≥ 15µm
 Particle size ≥ 50µm
 Particle size ≥ 5µm
 Standard Analysis
 Standard Analysis
 Advanced Analysis
Identify fibers and differentiate between metallic shiny and non-shiny particles for standard cleanliness testing applications.
Automation for your standard analysis with fully motorized axes of motion for automated imaging and height measurement.
 Perform accurate and repeatable analyses with this fully automated digital zoom microscope that supports rapid large field scanning.


Technical Cleanliness Software

ZEISS Technical Cleanliness Microscope SoftwareEach of the technical cleanliness microscope systems includes ZEISS technical cleanliness analysis software. The software supports the standards for component cleanliness, oil cleanliness, and cleanliness of medical products.

The software includes pre-configured automatic workflows as well as 5 different job templates, each suited for a different type of technical cleanliness analysis. Learn more about the ZEISS Technical Cleanliness software here.

Have questions about Technical Cleanliness analysis or which Technical Cleanliness Microscope is right for you? Contact Microscope World at 800-942-0528.