Put the squeeze on

Sieving is cost effective for particle sizes greater than 75 μ, although the technique can be used for some materials of smaller size if the method can be validated. Assuming the relevant standards and clean, wellmaintained equipment that conforms to the standards are used, sieving can provide an accurate and reproducible measure of particle size distribution within a sample.

SAMPLE PREPARATION IS NOT AN exact science; laboratory sub-sampling and sample splitting are prone to errors. These errors are due to heterogeneity either in the composition of the material, or in the non-random particle size distribution, which usually occurs as a result of gravitational forces. Any samples used for analytical testing must accurately reflect the composition of the original bulk material. If the initial particle size of the bulk material is too large, obtaining a representative sample is virtually impossible. (...)

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Verder Scientific - Science for Solids

The Scientific Division of the family owned VERDER Group sets standards in high-tech equipment for quality control, research and development of solid matter. The fields of activity cover sample preparation of solids as well as analyzing technologies.

Our well-known brands have served research institutions, analytical laboratories as well as manufacturing companies in quality control and process applications for many decades with ever more sophisticated and reliable products which offer the solution to their individual task.


Heat Treatment

Elemental Analysis

Milling & Sieving

Particle Analysis