Calibration of surface roughness standards at The National Laboratory

Purpose

The national laboratories are responsible for maintaining the national reference standards for each measurement quantity and spreading metrological competence and traceability to industry and society at large. The national reference standards are the highest level of traceability in Sweden.

A calibration performed at a national laboratory fulfils all typical traceability and accreditation requirements that commonly exist in industry and society at large. 

Method

Surface texture (roughness) is the microscopic structure, consisting of scratches, pores etc. that exists on a surface. It has great importance for industrially important properties such as friction, lubrication, corrosion, noise reduction and paint work.

Our services encompass both traceable calibrations of standards for surface roughness and evaluation of surface texture on manufactured components.

The extent of our services includes:

• Calibration of roughness standards with regular or irregular profile
• Calibration of step and depth standards
• Calibration of instruments for the measurement of surface roughness
• Characterization of surface texture on components

We are partners in the development of written standards for surface metrology and a member of the Swedish National Committee for Standardization (SiS) within the area.

Deliveries

The calibration results are reported in a digital calibration certificate in Swedish or English which states that the calibration was performed at a national laboratory.