The Syringe Fit Positive Pressure Tester is mainly used to test the physical properties of the syringe, especially its fit. This tester is one of the most important tools for identifying the quality of medical syringes, especially in the positive pressure fit testing of disposable syringes, low-resistance syringes, self-destructing syringes, and prefillable syringes.
The syringe fit positive pressure tester generally adopts a large liquid crystal display test process curve, PVC operation panel, and is equipped with an imported top brand sensor system, and the test accuracy is leading in the industry. The instrument is equipped with a micro printer, which can print complete test information such as equipment serial number, sample batch number, experimenter, test results, and detection time. In addition, its professional and user-friendly fixture design can adapt to different sizes of specimens, and the system program has an ISP** upgrade function to provide personalized services.
To test the tightness of the syringe, the syringe is suctioned with water and the syringe cone is sealed, the core rod is placed in the most unfavorable position relative to the jacket, and a certain amount of force is applied in an attempt to cause the piston and seal to leak. When the syringe is under positive pressure, there should be no liquid leakage at the piston or seal.
The testing process is roughly as follows:
1.A device that seals or plugs the syringe cone (can be in accordance with GB T 1962.)1 or GB T 19622 required benchmark steel inner cone joint).
2.A device for applying lateral pressure to the syringe core rod in the range of 0Between 25n and 3n.
3.A device that applies an axial force to the jacket and/or core rod, generating pressures of 200 kPa and 300 kPa.
4.The drain is opened and the amount of water in the syringe is adjusted to the nominal volume.
5.Seal the syringe cone with a device.
6.Apply a lateral force to the layman from an angle perpendicular to the core rod and the magnitude of the force should be in accordance with Table 1.
7.An axial force is applied to the syringe to generate the pressure specified in Table 1 through the relative motion of the piston and coat. Maintain this pressure for 30s.
In addition, in order to ensure the accuracy of the test results, it is recommended to carry out the test water environment of 18 28, and the water must meet the requirements of ** water in GB T 6682.
The above content is for reference only, if you need more information about the syringe fit positive pressure tester, it is recommended to consult the technical staff of the medical device manufacturer or third-party testing institution.