8 results about "Integrity testing" patented technology

A method for preparing a filling operation, comprising the following steps: providing a filling system that comprises a liquid source, a barrier system for providing a controlled environment, a filling device arranged in the barrier system for filling a pharmaceutical liquid, a fluid path extending between the liquid source and the filling device for conducting the pharmaceutical liquid, and a filter assembly arranged in the fluid path with at least one filter housing and a filter element; introducing the pharmaceutical liquid from the liquid source into the fluid path; passing a defined amount of the pharmaceutical liquid through the filter assembly in order to wet each filter element; performing an integrity test of each filter element wetted with the pharmaceutical liquid; and forwarding the passed pharmaceutical liquid to the filling device in order to at least partially flush the fluid path.

The utility model discloses an embodiment relates to a kind of buffer tanks for large diffusion flow membrane filter integrity test, upper oval head is arranged above the buffer tank for large diffusion flow membrane filter integrity test;Lower oval head is arranged below the buffer tank for large diffusion flow membrane filter integrity test;Tank body is arranged between upper oval head and lower oval head head;The length-diameter ratio of buffer tank is 1:1 to 20:1, buffer tank plays the role of gas uniform buffering, stable test pressure, improves the accuracy and reliability of test, solves the technical problem of the problem that when membrane filter is tested by automatic filter integrity tester in prior art, because diffusion flow is too large, and the upstream volume of membrane filter is small, so that the gas pressure in upstream volume drops too fast during test, and cannot be successfully tested.

A fluid filtration system includes a single use filter removably mounted to a cabinet of a workstation. The upstream end of the single use filter is in fluid communication with a pump via a fluid supply conduit that includes a test junction. An integrity test device is supported by the cabinet and is in fluid communication with the upstream end of the single use filter via a test conduit fluidly connected to the single use filter via the test junction of the fluid supply conduit. The integrity test device adapted to be connected to a source of pressurized gas and to selectively direct a flow of pressurized gas through the test conduit and the single use filter to perform a test operation on the single use filter.

This application provides an integrity testing system and method for tubular membrane modules. The testing system includes a liquid path, a gas path, and a detection path. The liquid path provides a wetting liquid to the tubular membrane module, which forms a liquid film on the wall of the filter tube within the module. The gas path provides a pressure-measuring gas to the detection path, which includes a pressure gauge. The tubular membrane module is connected to the detection path. The liquid path and gas path are connected together at one end of the tubular membrane module, and the pressure gauge is connected to the other end. The pore diameter of the filter tube is not less than 0.45 μm, the viscosity of the wetting liquid is not less than 1.5 mPa·s, and the pressure of the pressure-measuring gas relative to atmospheric pressure is not less than 0.01 MPa. The integrity testing method for the tubular membrane module provided in this application includes: wetting the wall of the filter tube with the wetting liquid, forming a liquid film on the wall of the filter tube; and introducing the pressure-measuring gas from one end of the filter tube to detect the gas pressure at the other end of the filter tube.

This utility model discloses a shared device for sonic logging pipes and post-grouting pipes in engineering pile foundations. It includes multiple sonic logging and post-grouting pipes detachably installed on the stirrups of a reinforcing cage, and further includes: a plug detachably installed at the top of the shared pipes; and a grouting joint connected to the bottom of the shared pipes. Several grouting holes are drilled through the grouting joint, and each grouting hole outlet is equipped with an anti-clogging cap that can be opened and closed to reduce the probability of mud and sand entering the pile body and causing blockage. This utility model has a simple structure and a novel and reasonable design, achieving the dual purpose of serving as both an integrity testing channel and a grouting pipe. It prevents soil or gravel from entering the shared pipes and allows for more uniform injection of grouting material into them.

The application discloses a kind of multi-die interconnection integrity test optimization method and system, it is related to die test technical field, including the weighted connection structure model of CTE mismatch, aspect ratio and hollow density correction is constructed, four kinds of failure of sensitivity model are established to thermal fatigue, TSV leakage, bonding hollow and electromigration, risk index is calculated and three-level coverage baseline is divided by fusing FMEA and safety level, compressed test vector is generated according to clock domain clustering, dynamic rerouting is realized through IEEE1838 hierarchical TAP, online response freezes and extracts adjacent line to form fault cluster, execute hardware level isolation and directional diagnosis, update weight based on fault result, monitor process drift and dynamically adjust threshold, offline update topology graph forms closed loop iteration.The application realizes cross-die differentiation test strategy, improves test efficiency and fault detection rate.