TERMOBOX cap 250 cc with cooling bottom Analysis Security box - Security box - Security Containers for analysis Put the two containers of cooling fluid into the box Position the test tube containing the organic liquid. Fit the first black cap, than the second, white stopper. Be sure that the flap with the sealing hole stay outside the container's edge. The Twistseal turning the cable at least three times inside the locking mechanism, than break the handle. Now the content is sealed and safe. You can guarantee the safety of the external closure by TWISTSEAL a plastic seals (progressive numbering, 7 digits). Once you will have closed and sealed with our TWISTSEAL it becomes impossible to open without leaving visible traces. More Info MORE INFO ANTI TAMPERING: Multiple security devices assure the integrity of the containers ANTI INTRUSIVE: The choice of material (modified polypropilen PP-RCP F10) together with the thickness of the containers (not less than mm 2,5) prevent breaches by blunt objects such as points, needles and so on CONFORMITY: The containers are made in thermoplastic material,  with conformity to CEE directive 90/128 about plastic materials to be used in contact with food, and have obtained consequently the CE mark SINGLE USE: These supplies are meant to be used just one time - this allow you to spare the costs of washing, sterilization, warehousing distribution costs.