Cryotubes are used for storage of biological material in biobanks. We proff tightness aganist penetration of CO2 and LN2 and validate the transport safety according to the regulation of IATA (International Air Transport Organization) and ADR (Transportation of dangerous goods by road). We offer assessment under real-world conditions as well as quick and cost-efficient tests by an idependent research institute. See our download section for an overview of our testing methods.