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Packaging Bag Testing Equipment
GTR-G1
Gas Permeability Tester (Differential pressure method)
GTR-G1 Gas Permeability Tester is based on the differential pressure method, and is professionally applicable to the determination of gas transmission rate (GTR) as well as solubility coefficient, diffusion coefficient and permeability coefficient of plastic films, composite films, high barrier materials, sheeting, aluminum foils, rubber, tire and permeable membrane.
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Product Features
Advanced Technology
Equipped with imported high-precision vacuum sensor and pressure sensor ensure the test accuracy
World’s first advanced water circulated temperature control system, realized temperature auto control and wider temperature range
Independent temperature control for upper/lower chamber and electrolytic sensor, which ensures the accuracy of the test results
Self-developed airtight piping system reduces system errors and makes test results more accurate
Unique sample anti-leakage structure design, ensure the seal stability of samples
Automatic pressure holding function, which can adjust the pressure of the upper chamber in real time to ensure the constant pressure difference between the upper/lower chambers during the test
7" color touch screen, with professional operating system, the test process is completed the results are displayed automatically
With high-speed vacuuming capability, more thorough degassing, short test cycle and high efficiency
High-end Configuration
Two test modes: proportional mode and standard mode
The system has self-checking capability to ensure that the equipment is in normal test state at any time
Test range could be extended based on requirements to test the materials with low permeability
Imported components make the operation of the instrument more stable and reliable
Reference film for fast calibration to ensure accurate and universal test data
With automatic save function after power failure
The whole testing process is monitored, automatically recorded, and can be reproduced in the whole process
Test 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.
Reference Standard
Product Parameter
|
Specifications |
GTR-G1 |
|
Test Range |
0.05~50,000 cm3/m2·24h·0.1MPa |
|
Resolution |
0.01m3/m2·24h·0.1MPa |
|
Number of Specimens |
1 |
|
Number of Sensors |
1 |
|
Test Mode |
Single chamber |
|
Vacuum Resolution |
0.1 Pa |
|
Vacuum Degree of Test Chamber |
<20 Pa |
|
Test Temperature |
15°C~55°C ±0.1°C (dry gas at standard atmospheric pressure) |
|
Temperature Accuracy |
±0.1℃ |
|
Air Pressure |
0.1 MPa~0.8 MPa |
|
Test Gas |
O2, N2 and CO2 (outside of supply scope) |
|
Carrier Gas Interface |
Ф6 |
|
Vacuum Pipe Diameter |
1/4" |
|
Correction Method |
Standard film calibration |
|
Specimen Thickness |
≤3mm |
|
Specimen Size |
Φ97 mm |
|
Instrument Dimension |
740 mm (L) x 415 mm (W) x 430 mm (H) |
|
Power Supply |
AC 220V 50Hz |
|
Net Weight |
50 kg |
Applications
|
Basic Applications |
Films |
Including plastic films, plastic composite films, paper-plastic composite films, coextruded films, aluminized films, aluminum foils, aluminum foil composite films and many others |
|
Basic Applications |
Sheeting |
Including engineering plastics, rubber and building materials, e.g. PP, PVC and PVDC |
|
Extended Application |
Petrochemical |
Including transportation pipelines, such as MDPE plastic CO2 testing |
|
Extended Application |
Various Gases |
Test the permeability of various types of gases, e.g. O2, CO2, N2, Air and He |
|
Extended Application |
Inflammable, Explosive Gases |
Test the permeability of inflammable and explosive gases |
|
Extended Application |
Biodegradable Films |
Test gas permeability of various sorts of biodegradable films, e.g. starch-based biodegradable bags |
|
Extended Application |
Materials for Aerospace Usage |
Test the Helium permeability of airship gas bags |
|
Extended Application |
Paper and Paper Board |
Test gas permeability of paper and paper-plastic composite materials, e.g. aluminized paper for cigarette packages, Tetra Pak sheeting, paper bowls for instant noodles and disposable paper cups |
|
Extended Application |
Paint Films |
Test gas permeability of substrates coated paint films |
|
Extended Application |
Glass Fiber Cloth and Paper |
Including glass fiber cloth and paper materials, e.g. Teflon paint cloth, Teflon welding cloth and Teflon silicon rubber cloth |
|
Extended Application |
Soft Tube Materials for Cosmetics |
Including various types of cosmetic tubes, aluminum-plastic tubes and toothpaste tubes |
|
Extended Application |
Rubber Sheeting |
Including various sorts of rubber sheeting, e.g. car tires |
|
Extended Application |
Vacuum Packaging |
Including vacuum packaging manufacturing sheets that are easily susceptible to gas oxidation and corrosion, such as electronic products, such as consumable sensors, etc. |
Configuration
Standard configuration:Instrument, temperature control device, vacuum pump, gas tube, sampler, calibration film
Note: Customer need to prepare vacuum grease, testing gas.
Accessories:
Temperature control device Vacuum pump
Optional accessories for hazardous gas:safety kit
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