The flexible sealing lip inside the cap ensures a positive leakproof seal under even the most adverse conditions. This deep internal lip fits snugly against the interior wall of the tube preventing the contents from coming in contact with the threads, thus reducing the chances of sample contamination. Caps are supplied with attachment loops in order to prevent contamination and mix-up. Cannot be autoclaved since closure is made of high density polyethylene. Can be centrifuged up to 17,000g.
Made of high impact polystyrene. Smooth and flexible to facilitate uniform streaking without damaging the gel surface. Needle is straight and suitable for removal of specimens of single colonies. Packed sterile in safe, tamperproof, zip-seal resealable bags. Does not require flaming and thus eliminate the risk of infection due to aerosol formation of pathogenic substances. Cross contamination due to improper sterilization is eliminated. They can be used under hoods without danger, and are color-coded for ease of size identification. 22.7cm length.
Made of high impact polystyrene. Smooth and flexible to facilitate uniform streaking without damaging the gel surface. Needle is straight and suitable for removal of specimens of single colonies. Packed sterile in safe, tamperproof, zip-seal resealable bags. Does not require flaming and thus eliminate the risk of infection due to aerosol formation of pathogenic substances. Cross contamination due to improper sterilization is eliminated. They can be used under hoods without danger, and are color-coded for ease of size identification. 22.7cm length.