Laboratory test tube 409001

polypropylenesterile

Tubes made of autoclavable polypropylene. Designed for the storage of biological material at temperatures as low as –196 ºC. (Liquid Nitrogen but in gas state). Cryovials have printed graduations and feature a white marking area for sample identification. Caps and tubes have both the same coefficient of expansion, which further enhances their leakproof qualities at changing temperatures. Caps are manufactured in polyethylene* and embody a silicone O-ring that guarantees leakproof. Colour code inserts can be fitted into the caps for identification. All cryovials are certified RNAse, DNAse and pyrogen free. Cryovials are sterilized by radiation and are packaged in safety-lock bags of 100. Supplied capped. External threads: minimize liquid retention. Non skirted versions withstand centrifugation up to 17,000 xg. * 10 ml cryovial (code 401410) features a polyethylene cap which does not accept inserts. Internal threads: Non skirted versions withstand centrifugation up to 14,000 xg.