GPT-203 Gas Permeability Tester

GPT-203 Gas Permeability Tester is based on the differential pressure method and is professionally applicable to the determination of permeance and permeability of plastic films, composite films, high barrier materials, sheeting, metal foils

Product Introduction

How It Works?

View this video to learn how this tester works.

GPT-203 Gas Permeability Tester is based on the differential pressure method and is professionally applicable to the determination of permeance and permeability of plastic films, composite films, high barrier materials, sheeting, metal foils.

Product Features

  • Permeance and permeability are tested simultaneously.
  • The 3 test chambers which can be staggered or synchronous to test, with the different or same specimens, are processed individually with the independent test results.
  • Pneumatic clamping improves sealing and avoids manual error.
  • Three kinds of test modes (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.
  • The testing range can be expanded to meet the requirements of high transmittance tests per clients’ demand.
  • Supporting the testing of toxic gas, flammable and explosive gas (customize).
  • Intelligent electronic system controls the whole test automatically.
  • Complied with GMP users’ three-level authority.
  • Specialized software is used to display the real-time test, analyze, and store data.
  • Micro-printer and USB.

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.

Test Standards

This test instrument conforms to many national and international standards:

ISO 15105-1, ISO 2556, ASTM D1434, JIS K7126-1, GB/T 1038-2000, YBB 00082003


Basic Applications

Including plastic films, plastic composite films, paper-plastic composite films, coextruded films, aluminized films, aluminum foils, aluminum foil composite films and many others

Including engineering plastics, rubber and building materials, e.g. PP, PVC and PVDC

Extended Applications

Various Gases
Test the permeability of various types of gases, e.g. O2, CO2, N2, Air and He

Inflammable, Explosive Gases
Test the permeability of inflammable and explosive gases

Biodegradable Films
Test gas permeability of various sorts of biodegradable films, e.g. starch-based biodegradable bags

Materials for Aerospace Usage
This instrument can test the Helium permeability of airship gas bags

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

Paint Films
Test gas permeability of substrates coated paint films

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

Soft Tube Materials for Cosmetics
Including various types of cosmetic tubes, aluminum-plastic tubes and toothpaste tubes

Rubber Sheeting
Including various sorts of rubber sheeting, e.g. car tires

Technical Specifications

Specification Film Test
Test Range 0.01 ~ 50,000 cm3/m2·24h·0.1MPa(Standard)
At least 60,000 cm3/m2·24h·0.1MPa(Extended)
Number of Specimen 3 PCS with independent test results
Vacuum Resolution 0.05 Pa
Vacuum Degree of Test Chamber <10 Pa
Temperature Range 10 ~ 60°C
Temperature Accuracy ±0.1°C
Sample Size Φ95 mm
Test Area 33.18 cm2
Test Gas O2, N2, CO2 etc (out of supply scope)
Test Pressure 0.1 MPa ~ 0.26 MPa
Port Size Ф6 mm PU tubing
Instrument Dimension 600 mm (L) × 475 mm (W) × 450 mm (H)
Power Supply AC 220V 50Hz
Net Weight 75 kg


Standard Configurations: Instrument, Professional Software, Sample Cutter, Vacuum Grease, Fast Quantitative Filter Paper and Vacuum Pump

Optional Parts: Blades for Sample Cutter, Vacuum Pump Oil, Fast Quantitative Filter Paper, Humidity Generator.

Note: 1. The gas supply port of the instrument is Φ6 mm PU Tubing;
2. Customers will need to prepare for gas supply and distilled water.

Please Note: Jinan Saicheng is always dedicated to the innovation and improvement of product performance and function. Therefore, technical specifications are subject to change without further notice. Jinan Saicheng reserves the rights of final interpretation and revision.
Write a Review
Click to refresh authentication code
Customer Reviews and Testimonials
  • CustomerPosted on Mar 11, 2022
    The manufacturer is recommended, to respond quickly to the point. The sales manager has a lot of professional experience in packaging inspection. I can't beat the price. Reliable seller. No worries here!
Original Source:
Jinan Saicheng Instrument, focusing on the R&D of packaging material testing instruments, provides you with cost-effective quality control solutions. We accept customization products for customer special need.
GPT-203 Gas Permeability Tester
GPT-203 Gas Permeability Tester

Why Saicheng Instrument?

Production Facility
Production Facility
Production Facility
Quality Control & Testing Laboratory
Quality Control
Testing Laboratory
Need help or have a question?
For more information about testing technologies, please contact us. Our expert will reply to you ASAP.
Contact Us Today