The following bachelor thesis addresses the issue “Requirements for Study Samples”. Based on the Austrian GLP Regulation BGBl. II Nr. 450/2006, „Verordnung der Bundesministerin für Gesundheit und Frauen über die Gute Laborpraxis 2006“, through which the European Commission’s Directive 2004/10/EG on the harmonization of laws, regulations and administrative provisions relating to the application of the principles of good laboratory practice and the verification of their applications for tests on chemical substances was transposed into national legislation, a Standard Operating Procedure accurately regulating the handling of test samples has been drawn up. The drafting of this SOP occurred as part of setting up a quality assurance system, the overall objective being to attain a GLP-certificate.