Different operations are carry out to prepare samples for chemical assays, working with care of contamination and seeking for the traceability of the overall process.
Specials rooms for sample preparation are located in building near the laboratories, with dust extraction centralized system and with specific equipment and specific activities.
Operations and activities:
In each of them also apply homogenization techniques, blending and splitting of samples, to obtain sub-samples and aliquots.
Also, mixing of pulps and compositing form several samples are made. Screening and sieving are developing with dry and wet samples.