Custom Sizes AvailableMust use tested sealer to close bagCan be used for bulk specimen shipments and cryo-boxes500 units per caseSecondary packaging for the transport of biological substances, category B, sampled according to IATA Packaging Instruction 650. TestIn accordance with the IATA Dangerous Goods Regulations, primary receptacles or secondary packaging used for liquid biological substances category B must be capable of withstanding, without leakage, an internal pressure which produces a pressure differential of not less than 95 kPa in the range of -40C to +55C. The test is effectuated at both temperatures on three samples. The samples are filled with air at +55C and -40C. An addition of air is supplied through a connection under a pressure of 95 kPa. This pressure is maintained for at least 10 min. The receptacles are verified for leakage.