Non-sterile, for use with robots. Tubes and rack are autoclavable at 121 °C (2 bar), acc. to DIN EN 285. Lids (TPE) are not autoclavable. Tubes, racks and lids can withstand temperatures as low as - 80 °C. The seal of the tubes is pressure-tested. Thanks to the stable connection between the mounting plate and the racks, the stackable racks in ANSI / SLAS format are especially well-suited for use with robots and other automated dispensing systems. Coded tubes (A1-H12) and rack sides suitable for barcode labels simplify sample organisation.