Comparison by

Component Cleanliness

Oil Cleanliness

Relevant standards
  • VDA 19.1
  • VDA 19.2
  • ISO 16232
  • VDI 2083, Part 21 (medical products)
  • Particle Test Standard (CC) Slide D45
  • ISO 4406
  • ISO 4407
  • GB/T 20082
  • GB/T 14039
  • NAS 1638
  • SAE AS 4059

Job templates

Job template Component Cleanliness Testing (Loaded Images) is supplied with the software.

In the TCA Workflow Editor, you can create individual job templates. You have the following options:

  • Component Cleanliness Testing
  • Component Cleanliness Testing with ML Object Classification
  • Component Cleanliness Testing with ML Object Classification (Loaded Image)
  • Component Cleanliness Testing with S&F
  • Component Cleanliness Testing with S&F and ML Object Classification
  • Component Cleanliness Testing with HM
  • Component Cleanliness Testing with S&F and HM
  • Component Cleanliness Testing with ML Object Classification and HM
  • Component Cleanliness Testing with S&F and ML Object Classification and HM
  • Technical Cleanliness (VDA 19.2 Joint Result)

In the TCA Workflow Editor, you can create individual job templates. You have the following options:

  • Oil Cleanliness Testing
  • Oil Cleanliness Testing (Loaded Images)
  • Oil Cleanliness Testing with S&F
  • Oil Cleanliness Testing with HM
  • Oil Cleanliness Testing with S&F and HM

Effective area

Complete flow through area must be analyzed; i.e. extrapolation of results is not allowed

Extrapolation is allowed; e.g. scan D35 and extrapolation to D41

Normalization
  • Component number (N)
  • Wetted component area (A)
  • Wetted component volume (V)

Applied oil volume (V)

Result interpretation

Focus on large particles and often in practice also on metallic-shiny particles.

Focus mainly on particle count

Analysis (in practice)

Particle size distribution and particle type (metallic-shiny, non-shiny, fiber)

Particle size distribution and particle types (particles and fibers)

Average particle size

5 µm up to ≥ 3000 µm

1 µm up to > 100 µm

Particle size distribution

Differential particle counts
Example:
≥ 5 - 15 µm;
≥ 15 - 25 µm

Methods:

  • Standard
    (50 µm and larger objects)
  • Extended
    (5 µm and larger objects)
  • Differential particle counts
  • Cumulative particle counts
    Example:
    ≥ 5 µm
    ≥ 15 µm

No specific methods.

Cleanliness classes (levels or codes)

One cleanliness code table valid for all particle size classes.

Depending on the standard, one cleanliness code table is valid for all particle size classes or individual code tables per particle size class.

Relative image brightness (Luminosity) & Relative threshold

Image brightness adjustment using the luminosity value and image analysis setting with a corresponding relative threshold.

Image brightness adjustment by exposure time or luminosity and image analysis setting via independent definition of a threshold range or relative threshold.

Image acquisition and camera sensor pixel polarization (default setting)

One multichannel image with Pol- 90° and Pol-135°.

For more information, see Polarization Method.

One single-channel image with Pol-90° (with Axiocam 705 pol). With other Axiocams, polarization contrast is required.

Occupancy rate

Results refer to the complete measurement frame area (=effective filter area).

Results refer to the complete measurement frame area (=effective filter area).

For more information, see Common Characteristics.