Gas Permeability Tester is based on the differential pressure method and is professionally applicable to the determination of gas transmission rate as well as solubility coefficient, diffusion coefficient and permeability coefficient of plastic films, composite films, high barrier materials, sheeting, metal foils, rubber, tires and permeable membranes. Features The touch interface is auto-visual and easy to operate. Pneumatic clamping improves sealing and avoids manual error. Fully automatic process and the gas permeability, solubility coefficient and diffusion coefficient of the sample can be measured at the same time. Three kinds of test mode (proportion, material and time) are getting to meet different requirements. Provided standard membrane for rapid calibration to ensure the accuracy of testing data. Widely test under various conditions with high-precise temperature and humidity control (optional). The testing range can be expanded to meet the requirements of high transmittance test in accordance with clients' demand (can be modified). Supporting the testing of toxic gas, flammable and explosive gas (can be modified). Complied with GMP users' three-level authority. Systematical analysis of testing results can be carried out. ISP online control and upgrade function are excellent and testing function can be changed remotely according to requirements. Specialized software is used for real-time testing display, data analysis and storage. Principle The pre-conditioned specimen is mounted in the gas diffusion cell as to form a sealed barrier between two chambers. The lower-pressure chamber is firstly evacuated, followed by the evacuation of the entire cell. A flow of gas is thereafter introduced into the evacuated higher-pressure chamber and a constant pressure difference is generated between two chambers. The gas permeates through the specimen from the higher pressure side into the lower side. The gas permeability and other barrier properties of the specimen can be obtained by monitoring the pressure changes in the lower chamber. Standards ISO 15105-1, ISO 2556, ASTM D1434, JIS K7126-1, GB/T 1038-2000, YBB 00082003. Configurations Standard: Instrument, Professional Software, Round Sample Cutter, Vacuum Grease, Fast Quantitative Filter Paper and Vacuum Pump. Optional: Blades for Sample Cutter, Vacuum Grease, Vacuum Pump Oil, Fast Quantitative Filter Paper, Humidity Generator. Note: 1. The air connection of the instrument is 6 mm PU Tube. 2. Customers need to prepare for air source and distilled water.
Water Vapor Permeability Tester is manufactured based on the gravimetric method, and is applicable to test the water vapor transmission rate of plastic films, composite films, sheets and other materials used in packaging, medical and constructive industry. Features Standard periodic weighing method and auto-zeroing function guarantee the accuracy and uniformity of the testing data. Touch interface is more convenient to operate. The test data is reliable due to the automatic process and the weighing system controlled by the gas cylinder. Innovative circulating dehumidification system with built-in vacuum pump can effectively prevent the formation of humidity gradient and ensure the accuracy. High-precise and automatic control system of temperature can be used under different conditions. The data can be stored and outputted in multi-format (including report in excel and cloud sharing). The rapid calibration mode with standard weight-counter is provided. GMP management of user's three-level authority complies with international standard. The instrument processes statistical analysis of single and group data. Equipped with ISP control online and upgrade function. Specialized communicating software can display in real-time, analyze and store data. Principle Under a certain temperature, the constant difference of humidity is generated between two sides of the test specimen. The water vapor permeates through the specimen and gets into the dry side. By measuring the weighing changes of the test dish in different time, water vapor transmission rate and other parameters can be obtained. Standards ISO 2528, ASTM E96, ASTM D1653, TAPPI T464, DIN 53122-1, JIS Z0208, GB/T 1037, GB/T 16928, YBB 00092003. Technical Specifications Test Range 0.01 ~ 10,000 g/m²24h (Standard) Number of Specimen 1 pc (One chamber) Accuracy 0.01 g/m²24h Resolution 0.0001 g Range of Temperature 15 ~ 65 (Standard) Accuracy of Temperature ±0.5 Range of Humidity 10%RH ~ 98%RH (Standard 90%RH) Accuracy of Humidity ±1%RH Velocity 0.5 ~ 2.5 m/s (Customization is available) Test Area 33.18 cm² Sample's Thickness  3 mm (Customization is available) Sample's  Size 74 mm Air Connection 6mm PU Tubing Dimension 440 mm (L) 450 mm (W) 450 mm (H) Power Supply AC 220V 50Hz Net Weight 42 kg
Lithium Battery Separator/ Electric Vehicle Air Permeability Tester Gurley Method Product Detail Application: Based on the differential pressure method, and is professionally applicable to the determination of gas transmission rate as well as solubility coefficient, diffusion coefficient and permeability coefficient of plastic films, laminated films, high barrier materials, sheeting, metal foils, rubber, tires and permeable membranes. Lithium Battery Separator/ Electric Vehicle Air Permeability Tester Gurley Method Features: Vacuum differential pressure method Own technology 3 specimens test simultaneously and independently Computer control One-button test, test automatically through whole process High accuracy vacuum sensors embedded in 3 Chambers with independent temperature sensor Test under various RH conditions with Humidity generator (optional) Environment temperature and humidity sensor inside Permeability coefficient ,solubility coefficient and diffusion coefficient test Chambers with water bath temperature control technology Unit based on embedded system,24bit AD Multiple test modes optional Data curves display Traceable reference film calibration Supports DSM system (DSM, lab data management system)
