Plastic Blood Bag Leak Resistance Tester complies with GB142321-2020 Test requirements for human blood and blood component bag plastic containers Part 1: Traditional blood bags.
Test principle: Fill the plastic blood bag with water in accordance with GB T 6682 to the nominal capacity and seal it. Centrifugation at 37 5 000 g for 10 min showed no leakage in the plastic blood bag. The plastic blood bag was then placed between the two plates and squeezed, and the internal pressure was raised to 50 kPa above the atmospheric pressure for 10 minutes under the condition of (23 5), and there should be no leakage under visual observation.
For soft polyvinyl chloride (PVC) blood bags, the above two tests should be repeated at 4. Plastic blood bags that are not filled with solution centrifugation should be subjected to the same centrifugation conditions as described above. It is then charged to a nominal capacity that should be able to withstand the internal pressure of 50 kPa above the atmospheric pressure described above.
Note: When the plastic blood bag is filled with an anticoagulant solution, such as ACD solution or other anticoagulant fluid with a similar pH, the blood bag can be squeezed against several blue litmus test strips to observe whether there are pink spots on the test strips to check for leakage. Other pH solutions can be used in the same way with other suitable test strips. Other methods with at least the same sensitivity can also be used.
When carrying out the leakage resistance test of plastic blood bags, it should be carried out in accordance with the GB142321-2020 Human Blood and Blood Component Bag Plastic Containers Part 1: Traditional Blood Bags" test requires operation. First, fill the plastic blood bag with water in accordance with GB T 6682 to the nominal capacity and seal it. Centrifuge at 37 conditions for 10 min, and the plastic blood bag should not leak. Next, the plastic blood bag is placed between the two plates and squeezed so that the internal pressure rises to 50 kPa above atmospheric pressure for 10 minutes. Visual observation should not produce leakage. For soft polyvinyl chloride (PVC) blood bags, the above two tests should be repeated at 4. Plastic blood bags that are not filled with solution centrifugation should not be subjected to the same centrifugation conditions as described above. It is then charged to a nominal capacity that should be able to withstand the internal pressure of 50 kPa above the atmospheric pressure described above. When a plastic blood bag is filled with an anticoagulant solution, such as ACD or other anticoagulant fluid with a similar pH, the blood bag can be squeezed against several blue litmus strips to check for leaks. Other pH solutions can be used in the same way with other suitable test strips. It can also be detected by other methods that have at least the same sensitivity. When carrying out the leakage resistance test of plastic blood bags, the following points need to be noted: First, it is necessary to choose test instruments and test strips that meet national standards to ensure the accuracy and reliability of the test results. Secondly, it is necessary to operate in strict accordance with the test requirements to avoid inaccurate test results due to improper operation. Finally, unqualified plastic blood bag products should be disposed of in a timely manner to avoid affecting blood quality and safety.