Manufactured from highly transparent polypropylene. For storage and preservation of cell cultures and biological material such as serum, blood and semen samples. Suitable for storage from general refrigeration (+4°C) to the vapour phase of liquid nitrogen. The tubes are manufactured in a clean room according to ISO 7 (UNI EN ISO 14644-1), Federal Standard 209 (class 10,000). Sterilised by beta radiation to a minimum sterilisation level of SAL 10-6. Autoclavable at 121°C for 20 minutes DNA, DNase, Pyrogen, ATP, Human DNA, PCR Inhibitor free Lid with integral seal, no additional silicone O-ring required Conical interior for complete emptying White graduation for accurate readings White marking area for sample identification Tubes with male or female threads Expiry date on each tube and packaging lid: PE and TVP Packed in a PE bag of 50 and an outer cartonMeer tonenMinder tonen