Syringe Rubber Stopper

1, To ensure the sealing performance of the injection plug, a sealing tester must be used for testing until it is qualified.
2, Sealing and puncture retention: When piercing the bottle stopper with a puncture device, all bottle stoppers must meet the puncture requirements, that is, no bottle stopper is pushed into the bottle. During the 4-hour test of the sealing tester, there should be no leakage between the puncture device and the bottle stopper, and no puncture device should be pulled out. If the bottle stopper needs to be punctured multiple times but not more than 3 times, it should meet the self sealing requirements.