quality control - eqas - pathology - Histotechnology, 3 samples HT/01, HT/02, HT/03 paraffins sections or slides, 1 evaluation report, coloration: Sample HT/01, in-house slide taken from the archive, HE dye, will be returned for evaluation by the expert. Sample HT/02 and HT/03, slides sent by the organiser, HT/02 Haematoxylin-eosin stained slide and HT/03 PAS - Gram, Reticulin - Giemsa, Elastic fibers - Berlin-blue, Trichrome - Ziehl-Neelsen, Amyloid - Grocott special stained slide, code 501, 2026.05