korins > Labthink투기/투습도시험기 > G2/131 가스투기도시험기

G2/131 is based on the differential pressure method, and is professionally applicable to the determination of gas transmission rate, solubility coefficient, diffusion coefficient and permeability coefficient of plastic films, composite films, high barrier materials, sheets, and aluminum foils at different temperatures. The system is equipped with three diffusion cells, which could test specimens simultaneously with individual test results. The testing process conforms to GB, ISO, ASTM and other international standards.

Technical Specifications

Specifications	Film Test
Test Range	0.05~50,000 cm³/m²·24h·0.1MPa
Temperature Range	15°C~55°C (room temperature 23°C)
Temperature Accuracy	±0.1°C (standard)
Humidity Range	0%RH, 2%~98.5%RH, 100%RH (humidity generator is not in our supply scope)
Humidity Accuracy	±1%RH
Vacuum Resolution	0.1Pa
Vacuum Degree of Test Chamber	<20Pa
Number of Specimens	3 with independent test results
Specimen Size	Φ97 mm
Test Area	38.48 cm²
Test Gas	O₂, N₂ and CO₂ (not in supply scope)
Test Pressure	-0.1MPa~+0.1MPa
Gas Supply Pressure	0.4MPa~0.6MPa
Port Size	Φ6 mm PU Tubing
Instrument Size	690mm(L) x 350mm(W) x 360 mm(H)
Power Supply	AC (85~264)V (47~63)Hz
Net Weight	71 kg

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 the two chambers. The gas permeates through the specimen from 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

This test instrument conforms to the following standards:
ISO 2556, ISO 15105-1, GB/T 1038-2000, ASTM D1434, JIS K7126-1, YBB 00082003

This instrument is applicable to the determination of gas permeability of:

Basic Applications	Films Including plastic films, plastic composite films, paper-plastic composite films, geomembranes, aluminized films, aluminum foil, aluminum foil composite films, and many others
Basic Applications	Sheeting 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 and Poisonous Gases Test the permeability of inflammable, explosive or poisonous 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 bag
	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 bowl for instant noodles and disposable paper cup
	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

Professional

System provides proportional and standard test modes with convenient parameter settings

The gas transmission rate as well as the coefficients of permeability, solubility and diffusion can be obtained at one operation

3 distinct or identical specimens can be tested simultaneously with the individual test results

Wide test range for different materials with high, medium and low barrier properties

Various types of gases are testable: sole gas, mixed gases, poisonous gases, explosive gases and other dangerous gas (customization is required)

World exclusive data fitting function that could easily calculate gas permeability and other parameters at different temperatures

Top quality parts and components made by world famous brands are used to ensure reliable overall product performance

Reference film for fast calibration ensures accurate and universal test data

Equipped with standard RS232 port for convenient data transfer

High-end

G2/131 utilizes Labthink’s latest embedded computer control system that provides a better performance than traditional single chip system.

Patented integrated design of three test cells improves the test efficiency and reduces the space occupancy of the instrument

Embedded computer control system provides safer and more reliable data management as well as test operation

The instrument can be easily operated with a mouse, a keyboard, and a monitor, without requiring a PC

The system is equipped with four USB ports and dual Internet ports for convenient data transmission

Intelligent

The instrument is equipped with Labthink's latest intelligent operating software, with user-friendly operating interface and intelligent data management. It also supports Lystem^TM Lab Data Sharing System, which ensures uniform management of test results and test reports.

Status monitoring and intelligent reminding of sensor calibration ensure instrument in the best working condition

The system automatically calculates the statistical information of instrument utilization rate and test times

Embedded help document for user viewing at any time

Multi-level account control for better data management and protection

The system utilizes embedded data saving technology to save detailed information and provide convenient and various searching and viewing functions

One time value input and the system automatically gives data comparison after each test

Support Lystem^TM Lab Data Sharing System for uniform and systematic data management

Standard Configurations: Including Mainframe, Professional Software, LCD Monitor, Keyboard, Mouse, Round Sample Cutter, Vacuum Grease, Fast Quantitative Filter Paper and Vacuum Pump

Optional Parts: Including Blades for Sample Cutter, Vacuum Grease, Vacuum Pump Oil, Fast Quantitative Filter Paper, Humidity Generator, Lystem^TM Lab Data Sharing System and Printer (compatible with PCL3)

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