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Roughness measurement


Analysis of surface texture using pen profile measurement (contact method) or optical profile analysis (non-contact method).

Can be applied to:

Metals, composites, plastics, 3D prints, coatings and other surfaces


Test method standards:

ISO 4288, ISO 4287/1, ISO 13565-1


Test procedures:

  1. Pen profile measurement

A drive unit moves a pen over the test surface while fluctuations of roughness are recorded and transformed into a roughness profile. A software allows easy calculations of common values such as Ra (mean surface roughness) and Rz (difference between peaks and valleys) or Rp and Rt values.

  1. Optical confocal microscope

Non-contact method using microscope and laser source to obtain high resolution, 3D surface analysis which allows for profile and roughness measurements.

Lead time:

5 business days


All tests – composites – metals – plastics – coatings – adhesives – 3D prints

About Sirris Testlabs

Since 1949, Sirris has been helping companies in Belgium to innovate. With our high-tech testing labs and our skilled material experts we want to support the Belgian manufacturing industry in testing and improving its products.

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Accreditation acc to EN ISO 17025






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